Dr. Diakaridia Sangaré

Researcher in process engineering applied to bioenergy

Specialized in modeling, numerical simulation, and optimization of biomass conversion processes.

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Dr. Diakaridia Sangaré — portrait

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    Biography

    Diakaridia Sangaré is a researcher in process engineering applied to bioenergy and to the sustainable valorization of lignocellulosic biomass and agro-industrial residues. He currently carries out his scientific work at the International Cooperation Center on Agricultural Research for Development (CIRAD), within the PERSYST department, in the BioWooEB Research Unit (UPR), in Montpellier, France.

    He earned his chemical engineering degree at the Universidad de Oriente (UO), in Santiago de Cuba, where he began his research career studying the anaerobic digestion of agricultural residues to produce biogas. He then completed a research master’s in process engineering at the Universidad Autónoma de San Luis Potosí (UASLP), in Mexico, focused on the thermochemical conversion of biomass to produce synthetic fuels.

    He carried out his PhD in process engineering jointly between the Universidad Autónoma de San Luis Potosí (UASLP) and the National Center for Scientific Research (CNRS-ICARE), in Orléans, France. His doctoral research combined experimentation and numerical modeling to study thermochemical processes, particularly the hydrothermal carbonization of biomass.

    He then undertook postdoctoral research at the Institut de Chimie Organique et Analytique (ICOA-CNRS), where he worked on the solid–liquid extraction of bioactive compounds obtained from plant materials, with pharmaceutical and cosmetic applications.

    His career also includes industrial experience at Orbia Advance Corporation as a process engineer and process-simulation consultant, as well as university teaching, supervision of young researchers, and international scientific collaboration.

    Current research

    My current research focuses on the valorization of lignocellulosic biomass and agro-industrial residues to produce bioenergy, syngas, biochar, hydrochar, bioactive compounds, and other bioproducts, with applications in energy and the chemical industry, as well as in water purification and the agronomic, pharmaceutical, and cosmetic sectors. This work combines experimentation with multiscale modeling, spanning design of experiments, kinetic studies, and the analysis of transport phenomena through to reactor simulation and process optimization. This approach helps clarify conversion mechanisms, improve the performance of processes and conversion systems, optimize the quality of the resulting products, and develop sustainable valorization pathways tailored to different resources and contexts.

    The approach combines experiments with multiscale modeling: intrinsic kinetics at the macromolecular scale, heat and mass transfer at the particle scale, and hydrodynamics and reactions at the reactor scale.

    The methods include kinetic models, computational fluid dynamics (CFD), process simulation, design of experiments, optimization, and machine learning, including physics-informed neural networks (PINNs), to develop predictive models and support process design and scale-up.

    Education

    PhD in Process Engineering Sciences — 2021

    • Universidad Autónoma de San Luis Potosí (UASLP), Mexico
    • National Center for Scientific Research (CNRS), Orléans, France

    Languages

    • Spanish
    • French
    • English
    • Portuguese
    • Bambara
    • Jula

    Professional profile

    Press and media

    El Sol de San Luis
    Diakaridia Sangaré receiving a research award at UASLP in 2017

    UASLP doctoral student wins first place

    Diakaridia Sangaré, a doctoral student in Chemical Engineering Sciences at the Autonomous University of San Luis Potosí (UASLP), within the Faculty of Chemical Sciences, won first place in the Technology category of the university’s research-project competition with the project “Fuels obtained from biomass—Agave salmiana bagasse—as new energy sources for a sustainable future.” The recognition was awarded as part of the 2017 University Prize for Socio-Humanistic, Scientific and Technological Research.

    Read the original article

    Patricia CalvilloEl Sol de San LuisNovember 2, 2017

    Amanecer Huasteco
    Image published with the Amanecer Huasteco article

    UASLP graduate student proposes new energy sources

    Diakaridia Sangaré, a postgraduate student in the Faculty of Chemical Sciences at the Autonomous University of San Luis Potosí (UASLP), received the University Prize for Socio-Humanistic, Scientific and Technological Research for a project focused on converting biomass into synthetic fuels. In the interview, the researcher from Mali explained that his work was being conducted through a collaboration between UASLP and the French National Center for Scientific Research (CNRS), with the objective of valorizing biomass as an alternative energy source for a sustainable future.

    Read the original article

    Amanecer HuastecoAmanecer HuastecoNovember 5, 2017

    Awards and Recognition

    • Best doctoral thesis award
      Best doctoral thesis award 2021, Universidad Autónoma de San Luis Potosí, Mexico (2022).
      2022
    • Logo of the Autonomous University of San Luis Potosí (UASLP)
      “Summa Cum Laude” honorable mention for the doctoral thesis, Universidad Autónoma de San Luis Potosí, Mexico (2021).
      2021
    • CONACYT logo
      CONACYT doctoral scholarship, Mexico (2018).
      2018
    • University award 2017
      University Award for Socio-Humanistic, Scientific and Technological Research, Universidad Autónoma de San Luis Potosí, Mexico (2017).
      2017
    • Jamana ka ɲinini jara san 2016
      National Award for Scientific and Technological Research, university category, Mexico (2016).
      2016
    • Gold diploma medal
      Gold Diploma in Chemical Engineering, Universidad de Oriente, Santiago de Cuba (2014).
      2014
    • Universidad de Oriente
      Best International Student Diploma, Universidad de Oriente, Santiago de Cuba (2009–2014).
      2009–2014
    • Republic of Mali
      Study scholarship for university education in Cuba (2008).
      2008

    Research Profile

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    Chemical Engineering

    Materials Science

    Engineering

    Experimental approach

    Experiments are designed according to the feedstocks, process, and target products. The first stage is biomass characterization, which establishes key properties and supports the selection of the most appropriate transformation route.

    Biomass characterization

    It includes elemental and proximate analyses, determination of heating value, and structural-composition analysis, particularly cellulose, hemicellulose, and lignin. These data support assessment of feedstock suitability for thermochemical conversion or extraction and help define the initial study conditions.

    Thermochemical conversion

    Hydrothermal carbonization is studied to produce hydrochar; pyrolysis to generate biochar, condensable fractions, and recoverable non-condensable gases; gasification to produce syngas or fuel gases; and combustion to generate heat and energy.

    Extraction of bioactive compounds

    Solid–liquid extraction is used to recover and characterize bioactive compounds for pharmaceutical, cosmetic, and related applications. The methods include static maceration, Soxhlet extraction, continuous-flow extraction, and Soxtec; the resulting data are used to compare conditions and optimize the process.

    For more information, see Infrastructure.

    Modeling and simulation approach

    In our research, modeling and simulation are cross-cutting tools for representing and predicting the behavior of valorization processes. We use them at different transformation scales, from laboratory to pilot scale. The models are parameterized and validated using experimental data before being used to simulate and interpret phenomena, compare different reactor configurations, optimize operating conditions, and support decision-making. Some of the modeling approaches we use are presented below.

    Intrinsic kinetic model

    Intrinsic kinetic models are used to determine kinetic parameters, identify reaction mechanisms and pathways, and establish the steps or phenomena that control the process. They can be formulated as single- or multistep reaction schemes to describe the chemical transformations of biomass constituents.

    Physical models

    Physical models include computational fluid dynamics (CFD) and coupled multiphysics models. They resolve hydrodynamics, turbulence, species and particle transport, heat and mass transfer, radiation, and chemical reactions in reactors.

    Thermodynamic models

    In our research, we use thermodynamic models primarily to simulate steady-state processes. These models integrate the different unit operations of the process and combine material and energy balances with equations of state, phase-equilibrium relationships, and binary interaction parameters to represent mixture behavior and separation operations.

    Design of experiments and statistical models

    The workflow is organized in three stages: screening to identify influential factors; factor studies to quantify main effects and interactions; and response-surface methodology to build empirical models, locate optimal conditions, and validate them. Statistical analysis is used to assess significance, uncertainty, and goodness of fit.

    Machine learning

    In our research, we use machine-learning models to represent nonlinear relationships and generate predictions from experimental data, CFD simulation results, or hybrid datasets that combine both sources. The approaches employed include conventional artificial neural networks and physics-informed neural networks (PINNs). Unlike conventional neural models, PINNs incorporate constraints derived from physical laws during training. Once validated, these models can be used as surrogate models with low computational cost or integrated as components of digital twins.

    A CFD model of a stirred hydrothermal-carbonization reactor was developed to study hydrodynamics, particle distribution, heat transfer and kinetics. The simulation established a reference stirring condition that was subsequently verified experimentally, while also examining multiphysics coupling within the reactor.

    CFD simulation of hydrodynamics and particle distribution in the stirred reactor.
    CFD simulation
    Hydrodynamics and particle distribution: CFD simulation

    Simulations were performed at different stirring speeds to identify the condition at which the inertial and hydrodynamic action generated by the impeller blades overcomes the gravitational tendency of the particles to settle and ensures a homogeneous distribution in the liquid. The results established a stirring speed of about 550 rpm as the reference condition for the reactor.

    Experimental observation of hydrodynamics and particle distribution at 550 rpm.
    Experimental
    Hydrodynamics and particle distribution: experimental study

    Following the simulations, experiments were conducted at different stirring speeds to verify and validate the conditions predicted by the model. The results showed that a speed of about 550 rpm is required to achieve a homogeneous dispersion of particles in the reactor. Experimental observations confirmed the formation of a uniform mixture under the studied condition.

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    Coupled fields of volume fraction, temperature and velocity in the reactor.
    CFD multiphysics coupling

    In this CFD simulation approach, different physical models were coupled to solve simultaneously the flow, particle transport and distribution, heat transfer, and hydrothermal carbonization kinetics. The figure combines the velocity, temperature, and solid- and liquid-phase volume-fraction fields, together with the evolution of biomass conversion.

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    In this study, a pilot-scale reactor designed for thermal energy recovery, with a power range of 15–30 kW, was first characterized experimentally. A reactive CFD model was then developed to investigate the hydrodynamics and combustion of low-calorific-value pyrolysis gases. After validation against experimental data, the model was used to compare different reactor configurations and identify the conditions that promote combustion and reduce the residual CO concentration.

    Localisation de la zone de réaction et des régions à plus fort dégagement de chaleur.
    CFD temperature field

    The simulated temperature field locates the main combustion zone and the regions of highest temperature within the reactor. Comparison of the configurations shows that reactor geometry, the pyrolysis-gas inlet position, and air distribution directly alter the location and extent of the hot zones.

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    Distribution du monoxyde de carbone après la réaction et identification des régions à oxydation incomplète.
    Post-combustion residual CO — CFD

    This CFD simulation result shows the spatial distribution of residual CO after oxidation. Comparing the different geometries reveals how the reactor configuration changes the location of regions where CO oxidation remains incomplete.

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    Evolution of solids, non-condensable gases, liquid products and water during pyrolysis.
    Product formation and distribution

    In this study, a multistep kinetic model was coupled with CFD simulation to represent the degradation of the lignocellulosic constituents of biomass and the formation of the main pyrolysis products: biochar, bio-oil, water, and non-condensable gases. At a heating rate of 10 °C/min, the figure shows biomass mass loss and the evolution of the different product fractions throughout the process.

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    Simulated evolution of char carbon content at 850, 900, 950 and 1000 °C for different isothermal residence times.
    Biochar kinetics and reactivity

    The figure presents the evolution of biochar reactivity through the progressive decrease in residual carbon at isothermal temperatures ranging from 850 to 1000 °C and treatment times of up to 90 minutes. Conversion increases with temperature and reaction time, thereby characterizing biochar kinetics and reactivity.

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    Diagram of the stripping-column separation process simulated in Aspen HYSYS.
    Process simulation

    A dynamic simulation was performed for a stripping column used to purify DOP intended for medical applications. The model was used to analyze the hydraulic and dynamic behavior of the column, compare different operating conditions, and determine the time required to reach steady state. It also enabled the temporal evolution of the process to be studied during start-up and stabilization.

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    Response surface and optimal extraction conditions identified by simulation.
    CFD and design of experiments

    An initial kinetic study was conducted to estimate the kinetic parameters and diffusion coefficient associated with the extraction of dihydrorobinetin and robinetin from Robinia wood. These parameters were subsequently incorporated into a CFD model of a pilot-scale reactor, which was validated against experimental data. The study combined static maceration, continuous-flow extraction, and design of experiments to optimize the operating conditions and maximize the recovery of both bioactive compounds of interest for cosmetic applications.

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    Collaborations

    Network

    Current collaboration network

    This network represents my current scientific and institutional collaborations. Each link corresponds to a working relationship established through co-authorship, joint projects, thesis co-supervision or cotutelle arrangements, student training and supervision, academic mobility, exchange of data and methodologies, or complementary use of experimental and numerical infrastructure. These interactions are coordinated from my research unit, CIRAD–UPR BioWooEB, in collaboration with universities, research centers, and other scientific units in different countries. The relational view identifies direct links among researchers, teams, and institutions, while the geographic view shows the international distribution of these collaborations and their reach by country.

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    Main collaborating institutions

    Forms of collaboration

    • Research projects and networks

      Development of joint research projects and preparation of national or international proposals.

      Participation in research networks, consortia, and other scientific initiatives.

    • Training, supervision and mobility

      Co-supervision of doctoral dissertations and master’s theses, student training, internship supervision, and mobility for students, researchers, or academic staff.

    • Knowledge sharing and infrastructure

      Exchange of knowledge, methods, and data, and complementary access to infrastructure.

    • Scientific production and dissemination

      Joint preparation of research articles, books, book chapters, and contributions to conferences, seminars, or scientific meetings.

    If you would like to explore a possible collaboration, contact us.

    Publications

    Articles

    2026

    Mechanistic insights into microwave-assisted ethyl acetate extraction of natural astaxanthin from Paracoccus sp. for functional products and cost estimation

    Mussagy C.U., Caicedo-Paz A.V., Alvarado-Holtheuer C.N., Sadek M.S., Mustafa A., Sangare D. — Process Biochemistry, 169, p. 214-225.

    https://doi.org/10.1016/j.procbio.2026.08.007
    2026

    Quantification of cashew nut shell pyrolysis products and the effect of extractives on the product distribution

    Sangare D., Bouarfa N., Valette J., Thevenon F., Van De Steene L., Commandre J.M., Pinta F., Blin J. — Chemical Engineering Journal Advances, 27, 15 p.

    https://doi.org/10.1016/j.ceja.2026.101278
    2026

    Influence of ethanol on ultrasound-assisted extraction of bioactive compounds from cocoa pod husk and their antioxidant, antihypertensive, and antihyperglycemic activity

    González-Alejo F.A., Carrera-Lanestosa A., Moscosa-Santillan M., Garcia-Alamilla R., Araujo-León J.A., Sangare D., Acevedo-Fernández J.J., Garcia-Alamilla P. — ChemEngineering, 10 (4), 26 p.

    https://doi.org/10.3390/chemengineering10040043
    2026

    Understanding the thermal degradation mechanisms of Cashew nut shell liquid constituents: Anacardic acids, cardanols and cardols (ACC)

    Chung K.W.Y., Blin J., Sangare D., Valette J., Lanvin C., Van De Steene L. — Chemical Engineering Science, 322, 11 p.

    https://doi.org/10.1016/j.ces.2025.123131
    2025

    Mathematical modeling of multi-step kinetics of biomass pyrolysis applied to agave bagasse and char oxidation reactivity

    Sangare D., Moscosa-Santillan M., Belandria V., Valette J., De la Cruz Martínez A., Van De Steene L., Bostyn S. — Fuel, 391, 13 p.

    https://doi.org/10.1016/j.fuel.2025.134762
    2025

    Thermal degradation and reactivity of cashew nut shell liquid constituents

    Sangare D., Chung K.W.Y., Blin J., Lanvin C., Valette J., Van De Steene L. — Chemical Engineering Journal, 507, 15 p.

    https://doi.org/10.1016/j.cej.2025.160866
    2025

    Comparative analysis of CFD modeling and process Simulation for pyro-gasification of biomass

    Sangare D., Belandria V., Bostyn S., Moscosa-Santillan M. — BioResources, 20 (2), p. 2844-2870

    https://doi.org/10.15376/biores.20.2.2844-2870
    2025

    Novel strategies for valorizing red araça pomace: Cyanidin-rich extracts recovery and sustainable bioenergy production

    Mussagy C.U., Hucke H.U., Farias F.O., Tretina K., De Souza Mesquita L.M., Rostagno M.A., Valette J., Ahmad M., Mustafa A., Raghavan V., Sangare D. — Process Safety and Environmental Protection, 195, 11 p.

    https://doi.org/10.1016/j.psep.2025.106791
    2025

    CFD insights into microwave-assisted deep eutectic solvent for the recovery of astaxanthin from bacteria Paracoccus carotinifaciens: From extraction to agricultural applications

    Mussagy C.U., Caicedo Paz A.V., Cornejo P., Santander C., González F., Voloua R.G., Besoain X., Larach A., Salinas A., Godoy K., Sangare D. — Separation and Purification Technology, 360 (3), 12 p.

    https://doi.org/10.1016/j.seppur.2024.131212
    2025

    Thermal decomposition of spent lithium-ion batteries pouch: Investigating kinetic and thermodynamic compensation effects

    Jiang J., Yao Z., Tong J., Cui J., Kumar A., Gonçalves R.F.B., Reinmöller M., Sangare D., Manic N., Liu J., Bertelsen M. — Chemical Engineering Science, 316, 13 p.

    https://doi.org/10.1016/j.ces.2025.121951
    2025

    Lignocellulosic-based hydrochars: Synthesis, characterization and application in water decontamination

    Sánchez-Silva J.M., Aguilar-Aguilar A., Sangare D., Ocampo-Pérez R. — Next Sustainability, 6, 16 p.

    https://doi.org/10.1016/j.nxsust.2025.100150
    2025

    Hydrochar of Prunus persica: Green promoter of radical species to degrade methylene blue with visible irradiation

    Sánchez-Silva J.M., Sangare D., Belmonte-Vázquez J.L., Aguilar-Aguilar A., Padilla-Ortega E., González-Chávez R., Ocampo-Pérez R. — Environmental Science and Pollution Research, 32, p. 8481-8497

    https://doi.org/10.1007/s11356-025-36214-9
    2024

    Hydrothermal carbonization of cocoa shell: Hydrochar characterization, kinetic triplets, and thermodynamic aspects of the process

    Sangare D., Bostyn S., Moscosa-Santillan M., Belandria V., Garcia-Alamilla P., Gökalp I. — Biomass Conversion and Biorefinery, 14, p. 93-108

    https://doi.org/10.1007/s13399-022-02314-6
    2024

    Pyro-gasification of lignocellulosic biomass: Online quantification of gas evolution with temperature, effects of heating rate, and stoichiometric ratio

    Sangare D., Belandria V., Bostyn S., Moscosa-Santillan M., Gökalp I. — Biomass Conversion and Biorefinery, 14, p. 9763-9775

    https://doi.org/10.1007/s13399-022-03103-x
    2024

    Multi-step kinetic mechanism coupled with CFD modeling of slow pyrolysis of biomass at different heating rates

    Sangare D., Moscosa-Santillan M., Bostyn S., Belandria V., De la Cruz Martínez A., Van De Steene L. — Chemical Engineering Journal, 479, 14 p.

    https://doi.org/10.1016/j.cej.2023.147791
    2024

    Numerical modeling and evaluation of solid-liquid extraction with pressurized hot water extraction applied to Robinia Pseudoacacia wood

    Sangare D., Caré F., Buron F., Lafite P., Bostyn S. — Chemical Engineering and Processing, 195, 14 p.

    https://doi.org/10.1016/j.cep.2023.109605
    2024

    Eco-sustainable biorefinery to the management of winery waste by integrating sequential ready-to-use pigments and bioenergy through advanced multi-step kinetic slow pyrolysis

    Mussagy C.U., De Souza Mesquita L.M., Rostagno M.A., Haddad F.F., Dos Santos J.L., Scarim C.B., Herculano R.D., Valette J., Sangare D. — Industrial Crops and Products, 221, 12 p.

    https://doi.org/10.1016/j.indcrop.2024.119380
    2024

    Hydrothermal carbonization of biomass: experimental study, energy balance, process simulation, design, and techno-economic analysis

    Sangare D., Moscosa-Santillan M., Aragón Piña A., Bostyn S., Belandria V., Gökalp I. — Biomass Conversion and Biorefinery, 14, p. 2561-2576

    https://doi.org/10.1007/s13399-022-02484-3
    2023

    Computational Fluid Dynamics (CFD) modeling of static maceration in view to optimize continuous flow extractions of robinetin and dihydrorobinetin from Robinia pseudoacacia wood

    Caré F., Sangare D., Bostyn S., Atwi-Ghaddar S., Lafite P., Buron F. — Food and Bioproducts Processing, 141, p. 185-198

    https://doi.org/10.1016/j.fbp.2023.07.007
    2023

    Pyrolysis kinetics of Byrsonima crassifolia stone as agro-industrial waste through isoconversional models

    Sánchez-Silva J.M., Ocampo-Pérez R., Padilla-Ortega E., Sangare D., Escobedo-Bretado M.A., Domínguez-Arvizu J.L., Hernández-Majalca B.C., Salinas-Gutiérrez J.M., López-Ortiz A., Collins-Martínez V. — Molecules, 28 (2), 20 p.

    https://doi.org/10.3390/molecules28020544
    2022

    Comparative pyrolysis studies of lignocellulosic biomasses: Online gas quantification, kinetics triplets, and thermodynamic parameters of the process

    Sangare D., Bostyn S., Moscosa-Santillan M., Garcia-Alamilla P., Belandria V., Gökalp I. — Bioresource Technology, 346, 11 p.

    https://doi.org/10.1016/j.biortech.2021.126598
    2022

    Kinetic studies of hydrothermal carbonization of avocado stone and analysis of the polycyclic aromatic hydrocarbon contents in the hydrochars produced

    Sangare D., Chartier A., Moscosa-Santillan M., Gökalp I., Bostyn S. — Fuel, 316, 12 p.

    https://doi.org/10.1016/j.fuel.2022.123163
    2021

    Quantification and kinetic study of the main compounds in biocrude produced by hydrothermal carbonization of lignocellulosic biomass

    Sangare D., Bostyn S., Moscosa-Santillan M., Belandria V., Gökalp I. — Bioresource Technology Reports, 15, 12 p.

    https://doi.org/10.1016/j.biteb.2021.100770
    2021

    Hydrodynamics, heat transfer and kinetics reaction of CFD modeling of a batch stirred reactor under hydrothermal carbonization conditions

    Sangare D., Bostyn S., Moscosa-Santillan M., Gökalp I. — Energy, 219, 12 p.

    https://doi.org/10.1016/j.energy.2020.119635
    2020

    Modeling of Agave Salmiana bagasse conversion by hydrothermal carbonization (HTC) for solid fuel combustion using surface response methodology

    Sangare D., Missaoui A., Bostyn S., Belandria V., Moscosa-Santillan M., Gökalp I. — AIMS Energy, 8 (4), p. 538-562

    https://doi.org/10.3934/energy.2020.4.538

    Book Chapters

    2023

    Thermogravimetric analysis and kinetic modeling of Nanche stone BSC pyrolysis: A potential agro-industrial waste for bioenergy production

    Sánchez-Silva J.M., Ocampo-Pérez R., Padilla-Ortega E., Sangare D., Escobedo-Bretado M.A., Domínguez-Arvizu J.L., Hernández-Majalca B.C., Morales-Mendoza J.E., López-Ortiz A., Collins-Martínez V. — In: Abd Wahab Noor Zarina (ed.). Prime archives in molecular sciences. Hyderabad: Vide Leaf, p. 1-40.

    https://videleaf.com/thermogravimetric-analysis-and-kinetic-modeling-of-nanche-stone-bsc-pyrolysis-a-potential-agro-industrial-waste-for-bioenergy-production/

    Conference Communications

    2023

    Innovative processes for natural active ingredients extraction and their online functionalization using flow chemistry

    Caré F., Sangare D., Bostyn S., Routier S., Lafite P., Buron F. — 14th European Congress of Chemical Engineering and 7th European Congress of Applied Biotechnology, Berlin, Germany. Oral.

    https://univ-orleans.hal.science/hal-04660706/document
    2023

    Online eco-friendly processes: from biomass to enhanced natural ingredients

    Sangare D., Routier S., Bostyn S., Lafite P., Buron F. — 5th Cosm'Innov, Orleans, France. Oral.

    https://hal.science/hal-04670181/
    2022

    Pyrolysis Kinetics of Hydrochars derived from Agricultural residues using Thermogravimetric Analysis

    Semaan J.N., Belandria V., Sangaré D., Gökalp I., Bostyn S. — Low Carbon Combustion, Cambridge, United Kingdom. Oral.

    https://webtv.univ-lille.fr/video/11990/pyrolysis-kinetics-of-hydrochars-derived-from-agricultural-residues-using-thermogravimetric-analysis
    2018

    Optimization of agave salmiana bagasse conversion by hydrothermal carbonization (HTC)

    Sangare D., Missaoui A., Bostyn S., Belandria V., Moscosa-Santillán M., Gökalp I. — International Symposium of energy from biomass and waste. Proceeding 7TH VENICE, Italia. Oral.

    https://iwwg.eu/conference/venice-2018
    2017

    Optimization of agave salmiana bagasse conversion by hydrothermal carbonization (HTC)

    Sangare D., Missaoui A., Bostyn S., Belandria V., Moscosa-Santillán M., Gökalp I. — Chimiomètrie XVIII, Paris, France. Poster.

    https://theses.hal.science/tel-02108223v1/html_references
    2017

    Synthetic fuels obtained from biomass (agave salmiana bagasse) as new energy sources for a sustainable future

    Sangare D., Moscosa-Santillán M., Bostyn S. — Regional Graduate Student Conference, UASLP-SLP, Mexico. Oral.

    2017

    Hydrothermal carbonization for biomass energy densification

    Sangare D., Moscosa-Santillán — Catalytic Conversion of Lignocellulosic Biomass to Energy, Fuels and Chemicals, UASLP-SLP, Mexico. Poster.

    2016

    Production of synthetic fuels from biomass (agave salmiana bagasse)

    Sangare D., Moscosa-Santillán M., Bostyn S., Ocampo R. — Regional Graduate Student Conference, UASLP-SLP, Mexico. Oral.

    https://www.researchgate.net/publication/360785146_Produccion_de_Combustibles_Sinteticos_a_Partir_de_Biomasa_Bagazo_de_Agave_Salmiana
    2016

    Thermal characterization and kinetic studies of pyrolysis and gasification of Agave Salmiana bagasse

    Sangare D., Missaoui A., Bostyn S., Belandria V., Moscosa-Santillán M. — UASLP Chemical Engineering Faculty Graduate Seminar, SLP, Mexico. Oral.

    Thesis

    2021

    Experimental and simulation study of the hydrothermal carbonization of biomasses for the production of synthetic fuels

    Sangare D. — Thèse de doctorat, Universidad Autónoma de San Luis Potosí (Mexique).

    https://repositorioinstitucional.uaslp.mx/xmlui/handle/i/7397

    Dissertations and final-year reports

    2017

    Producción de combustibles sintéticos a partir de biomasa (bagazo de Agave salmiana)

    Sangare D. — Mémoire de master, UASLP.

    https://www.researchgate.net/publication/360785146_Produccion_de_Combustibles_Sinteticos_a_Partir_de_Biomasa_Bagazo_de_Agave_Salmiana
    2014

    Obtención de biogás con fines energéticos a partir de la metanogénesis de mezclas de residuo orgánico y excretas animales

    Sangare D. — Rapport de fin d'études, Universidad de Oriente (Cuba).

    https://www.researchgate.net/publication/360791729_Obtencion_de_biogas_con_fines_energeticos_a_partir_de_la_metanogenesis_de_mezclas_de_residuo_organico_y_excretas_animales

    Peer Review

    Ongoing projects

    Ongoing projects combine experimental work and computational simulation in bioenergy, agro-industrial residue valorization, biochar production, and predictive-model development.

    BIOSTAR — Bioenergy for SMEs in West Africa

    Period2020–2026

    StatusOngoing

    My roleOptimization of the design of an oxidative pyrolysis reactor and a pyrolysis-gas burner by means of CFD modeling.

    FocusDecentralized bioenergy for small and medium-sized enterprises in West Africa.

    Countries of applicationBurkina Faso and Senegal

    Countries of disseminationMali, Côte d’Ivoire and Niger

    WebsiteView site

    VITI-VALMO INTERREG SUDOE

    Period2025–2028

    StatusOngoing

    FocusValorization of local agricultural residues to contribute to the development of more resilient viticulture.

    Participating countriesFrance, Spain and Portugal.

    My roleDevelopment of kinetic models coupled with CFD to predict the yield and properties of pyrolysis products, with particular attention to biochar properties, including specific surface area and porous structure.

    Completed projects

    Integrated Eco-Responsible Processes for Cosmetic Ingredients (PIERIC)

    Period2020–2023

    StatusCompleted

    My roleResponsible for the implementation of a continuous-flow reactor and the optimization of operating conditions for continuous-flow extractions, coupling CFD modeling and design of experiments.

    FocusEco-responsible processes for obtaining cosmetic ingredients.

    WebsiteView site

    Re-design of the Stripping Column for Plasticizer Purification

    Period2018–2020

    StatusCompleted

    My roleProcess simulations to determine the optimal stabilization conditions of the stripping column and support for the start-up of a continuous process.

    FocusProcess optimization for plasticizer purification.

    Energy, Biofuels, and Clean Technologies for Sustainable Development

    Period2012–2015

    ContextVLIR-UOS project program in scientific research.

    StatusCompleted

    My roleDesign and development of laboratory-scale mini-reactors and digesters to obtain preliminary data for scale-up toward industrial applications.

    FocusEnergy, biofuels and clean technologies for sustainable development.

    Supervision

    Mohammed Nafiu Adamu

    Production and valorization of biomass-derived biochar: catalytic cracking of tars and soil amendment.

    Doctorate — CIRAD / Université de Technologie de Compiègne · Since 2025 (Ongoing) · Role : Main supervisor

    Maximiliano Ruiz Alba

    Application of machine learning to the simulation of hydrothermal carbonization of lignocellulosic biomass.

    Doctorate — Universidad Autónoma de San Luis Potosí · Since 2023 (Ongoing) · Role : Main supervisor

    Luis Arturo Arroyo Ibarra

    Numerical simulation of hydrothermal carbonization of lignocellulosic biomass.

    Research master’s — Universidad Autónoma de San Luis Potosí · 2023 (Completed)

    Xiaohui Ji

    Numerical simulation of the combustion of pyrolysis gases: optimization of energy performance and emissions.

    Internship — CIRAD · 2025 (Completed)

    Ikram Laribi

    Development and optimization of a protocol for the selective isolation of the main compounds of lignocellulosic biomass.

    Internship — CIRAD · 2025 (Completed)

    Mathis Lourenco

    Modeling of the air-flow distribution in a natural-rubber pilot dryer.

    Internship — CIRAD · 2024 (Completed)

    Muhammad Hafiq Zaiful Razuan

    Solid–liquid extraction applied to Robinia pseudoacacia.

    Internship — ICARE-CNRS · 2022 (Completed)

    Isabela Ferreira Moreno

    Analysis and quantification of the main compounds present in the liquids from hydrothermal carbonization of biomass.

    Internship — ICARE-CNRS · 2020 (Completed)

    Xavier Gosse

    Valorization of organic residues and plastic waste through gasification.

    Internship — ICARE-CNRS · 2020 (Completed)

    Andrea Cárdenas Sánchez

    Optimization of a desorption column for DOP purification.

    Internship — Universidad Autónoma de San Luis Potosí · 2019 (Completed)

    Infrastructure

    In our laboratory (UPR BioWooEB), we have experimental equipment and modeling capabilities at different scales, from laboratory to pilot scale. These resources support research from feedstock preparation and physicochemical characterization to conversion processes and final-product analysis. For more information, consult .

    Laboratory installation with multiple Soxhlet extraction systems
    Soxhlet Extraction System
    Solid–Liquid Soxhlet Extraction Analyzer

    One of the available solid–liquid extraction systems is a Soxhlet unit. It extracts bioactive compounds and other extractable fractions from biomass and plant residues, depending on the solvent and operating conditions, and prepares the extracts for subsequent chromatographic characterization.

    Principal analytical capabilities

    • Solid–liquid extraction with selection of solvent and operating conditions.
    • Recovery and preparation of fractions rich in bioactive compounds for analysis.

    Research applications

    • Comparison of extraction yields and biomass fractionation using different solvents.
    • Recovery of fractions containing bioactive or chemically relevant compounds.
    Thermo Scientific Dionex UltiMate 3000 HPLC system in the laboratory
    High-Performance Liquid Chromatography System (HPLC)
    High-Performance Liquid Chromatography Analyzer (HPLC)

    Our Thermo Scientific Dionex UltiMate 3000 HPLC system separates and quantifies nonvolatile or thermally sensitive compounds in biomass extracts, depending on the column, detector, and calibration method used.

    Principal analytical capabilities

    • Targeted separation, identification, and quantification using calibrated methods.
    • Analysis of extracts obtained by Soxhlet or other extraction methods.

    Research applications

    • Study of phenolic compounds, organic acids, sugars, and other compatible analytes.
    • Comparison of extract composition and extraction conditions.
    METTLER TOLEDO TGA/DSC 1 analyzer in the laboratory
    Micro-TGA/DSC System
    Thermogravimetric Analyzer with Simultaneous Calorimetry (Micro-TGA/DSC)

    The Micro-TGA/DSC analyzer works with milligram-scale samples at atmospheric pressure. It simultaneously records mass variation and thermal effects under controlled temperature programs and atmospheres.

    Principal analytical capabilities
    • Simultaneous acquisition of TG/DTG profiles and the DSC signal.
    • Control of temperature, heating rate, and test atmosphere.
    Research applications
    • Thermal characterization of biomass, char, and residues.
    • Identification of decomposition stages and generation of data for kinetic studies.
    Agilent 7010C triple-quadrupole GC–MS/MS system in the laboratory
    Gas chromatography–tandem mass spectrometry system (GC–MS/MS)
    Gas chromatography–tandem mass spectrometry analyzer (GC–MS/MS)

    Our GC–MS/MS system identifies organic compounds and provides targeted quantification of more than 85 compounds, using an internal-calibration method, in the condensable liquid fraction from biomass pyrolysis. The analyzed families include phenolic compounds and methoxyphenols, sugar derivatives, alcohols, furans, aldehydes, ketones, carboxylic acids, hydrocarbons, PAHs, and other oxygenated compounds.

    Principal analytical capabilities
    • Separation and identification of volatile and semi-volatile compounds.
    • Targeted quantification of more than 85 compounds by internal calibration.
    Research applications
    • Chemical characterization of pyrolysis condensates and bio-oils.
    • Comparison of pyrolysis conditions and chemical-family distributions.
    Custom high-pressure Macro-TGA designed and built by the laboratory engineering team
    Macro-TGA System
    Thermogravimetric Analyzer (Macro-TGA)

    The Macro-TGA works with gram-scale samples at pressures of up to 50 bar. It can be coupled to a micro-GC to quantify non-condensable gases and recover the liquid fraction for subsequent analysis.

    Principal analytical capabilities
    • Mass-loss monitoring with gram-scale samples at pressures of up to 50 bar.
    • Control of temperature, pressure, and atmosphere, with gas analysis by micro-GC.
    Research applications
    • Study of gasification, activation, and char reactivity.
    • Generation of data under conditions representative of pilot-scale reactors.
    PyroLab laboratory-scale horizontal tubular pyrolysis reactor
    Horizontal Tubular Reactor System (PyroLab)
    Laboratory-Scale Horizontal Tubular Pyrolysis Reactor (PyroLab)

    PyroLab is a horizontal tubular reactor for biomass-pyrolysis experiments up to approximately 800 °C under controlled temperature and atmosphere. A fresh sample can be introduced once the reactor reaches the target temperature, after which biochar, gases, and condensates are recovered separately.

    Principal analytical capabilities
    • Introduction of a fresh sample into a tubular zone previously stabilized at the test temperature.
    • Separate recovery of solid, gaseous, and condensable fractions.
    Research applications
    • Study of the effect of operating conditions on product yields.
    • Production of biochar and condensates for subsequent characterization.
    ALIGATOR laboratory fixed-bed reactor (CIRAD biomass-energy platform) with its data-acquisition system
    Fixed-Bed Reactor System (ALIGATOR)
    Laboratory-Scale Two-Zone Fixed-Bed Reactor (ALIGATOR)

    ALIGATOR is a two-in-one fixed-bed reactor with two independently controlled thermal zones. The first can be used for biomass torrefaction, pyrolysis, or gasification, while the second is used for thermal or catalytic cracking of pyrolysis gases and vapors. The system can be coupled to a micro-GC for online gas analysis.

    Principal analytical capabilities
    • Operation in two independent thermal zones under a controlled atmosphere.
    • Coupling to a micro-GC for online gas analysis.
    Research applications
    • Study of thermochemical conversion and char reactivity.
    • Evaluation of thermal or catalytic cracking of pyrolysis gases and vapors.
    Anton Paar Autosorb iQ automatic gas physisorption analyzer in the laboratory, with its control workstation
    Specific Surface Area Analysis System (BET)
    Specific Surface Area Analyzer (BET)

    The BET analyzer characterizes the specific surface area and pore structure of solid materials by gas physisorption. It provides BET surface area, total pore volume, and pore-size distribution.

    Principal analytical capabilities
    • Acquisition of adsorption–desorption isotherms.
    • Determination of specific surface area, pore volume, and pore-size distribution.
    Research applications
    • Characterization of char, biochar, hydrochar, and activated carbons.
    • Evaluation of catalysts, adsorbents, and other porous materials.

    Pilot-Scale Platform

    Semi-industrial reactors

    The 600 m² Energy Platform houses R&D pilot systems for biomass pyrolysis, torrefaction, combustion, and gasification. Tests are conducted at scales from 10 to 100 kWh to study process behavior before industrial transfer.

    Continuous Autothermal Oxidative Pyrolysis Reactor
    Semi-industrial pilot installation for autothermal oxidative pyrolysis
    Custom-built continuous fixed-bed pilot system

    This continuous pilot-scale autothermal oxidative-pyrolysis reactor is designed to recover thermal energy from biomass. Biomass enters at the top and descends by gravity. Air 1 partially oxidizes the condensable vapors and supplies the energy required to maintain the pyrolysis zone under autothermal conditions. Air 2 promotes partial oxidation of char in the lower zone, facilitates biomass descent, and contributes additional heat. The pyrolysis gases then pass to a combustion chamber supplied with additional air. The released energy is recovered through a shell-and-tube heat exchanger for different thermal applications, particularly in small and medium-sized enterprises. Learn more.

    Operating capabilities
    • Continuous fixed-bed operation with gravity-fed biomass and controlled Air 1, Air 2, and combustion-air inputs.
    • Integrated combustion chamber and shell-and-tube heat exchanger for thermal-energy recovery.
    Research applications
    • Study and optimization of autothermal oxidative pyrolysis and pyrolysis-gas combustion.
    • Assessment of heat recovery for decentralized thermal applications, particularly in small and medium-sized enterprises.
    CarboLift pilot-scale fixed-bed reactor for biomass carbonization and pyrolysis
    Pilot-scale fixed-bed carbonization and pyrolysis reactor
    Fixed-Bed Carbonization Reactor (CarboLift)

    CarboLift is a pilot-scale fixed-bed reactor for biomass carbonization and pyrolysis under a controlled atmosphere. It operates in batch or continuous mode at temperatures of up to approximately 1,000 °C, with an adjustable heating rate. In batch mode it produces biochar by lot; in continuous mode, production can reach approximately 1 kg·h⁻¹, depending on biomass density and operating conditions.

    Operating capabilities
    • Fixed-bed operation, temperature up to approximately 1,000 °C, adjustable heating rate, and controlled atmosphere.
    • Batch or continuous operation, with gas quantification and condensate recovery for analysis.
    Research applications
    • Pilot-scale biochar production and characterization.
    • Study of the effects of temperature, heating rate, and residence time.
    CharLift pilot-scale fixed-bed reactor for biochar activation and char-reactivity studies
    Pilot-scale fixed-bed biochar activation and char-reactivity reactor
    Fixed-Bed Carbonization and Gasification Reactor (CharLift)

    CharLift is a pilot-scale fixed-bed reactor operating in batch mode at temperatures of up to approximately 1,000 °C under a controlled atmosphere. It can use N₂ as an inert gas and steam or CO₂ as activation agents. These conditions produce biochars with different activation levels and allow controlled development of micro-, meso-, and macroporosity.

    Operating capabilities
    • Batch fixed-bed reactor, temperature up to approximately 1,000 °C, and controlled atmosphere.
    • Physical activation with steam or CO₂ and controlled development of micro-, meso-, and macroporosity.
    Research applications
    • Activation and characterization of activated biochars.
    • Study of pore-structure evolution and gas–solid reactivity of biochar.

    Modeling and Simulation

    Workstation

    Dell Precision 7875 Tower Workstation
    • AMD Ryzen™ Threadripper™ PRO 7965WX processor
    • 24 CPU cores | 48 threads
    • 4.2 GHz base frequency
    • 256 GB DDR5 RAM
    • NVIDIA RTX™ 4000 Ada Generation
    • 20 GB GDDR6 dedicated graphics memory

    This workstation supports computational simulation, parallel processing, and machine-learning workflows that require substantial memory and a professional GPU.

    Dell Precision 7875 Tower workstation with monitor, keyboard, and mouse
    Dell Precision 7875 Tower Workstation

    The workstation supports advanced computational workflows in Computational Fluid Dynamics (CFD), multiphysics and multiscale simulation, chemical kinetics, and process modeling. These approaches enable the analysis of fluid flow, heat transfer, mass transfer, transport phenomena, coupled physical processes, reaction mechanisms, and interactions occurring across different spatial and temporal scales.

    Its multi-core architecture and large memory capacity support complex numerical models, parallel calculations, parameter estimation, and the processing of large scientific datasets. The platform is also used for Design of Experiments (DoE), Response Surface Methodology (RSM), scientific programming in Python and MATLAB, and machine-learning workflows for predictive modeling, surrogate models, data analysis, and process optimization.

    Software

    COMSOL Multiphysics® Aspen Plus Aspen HYSYS Python MATLAB MODDE STATGRAPHICS SOLIDWORKS

    Contact

    Academic profile

    Affiliation

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