Research groups

Research Groups

[ultimate_modal modal_title="Dr Francois Collard" modal_on="text" modal_on_align="left" read_text="Dr Francois Collard" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow

Short Bio

Postdoctoral Researcher
Department of Process Engineering, Stellenbosch University,
2014-2017

PhD (Process Engineering and Sustainable Development)
University of Technology of Compiègne (UTC)
2012

PhD (Process Engineering / Chemical Catalysis), Biomass, Energy and Biofuel Laboratory
International Institute for Water and Environmental

Engineering (2iE) Ouagadougou
2012

MSc (Agro-resource reactivity)
ENSIACET Toulouse
2003

Research Interests

Pyrolysis conversion of lignocellulosic biomass into fuel and chemical products

Pyrolysis conversion of waste mixtures (fibres, plastic, etc.) into fuels

Selected Publications

Collard, F.-X., Carrier, M. & Görgens, J.F., 2016. Chapter 4 – Fractionation of Lignocellulosic Material With Pyrolysis Processing. In Biomass Fractionation Technologies for a Lignocellulosic Feedstock Based Biorefinery. pp. 81–101.10.1016/B978-0-12-802323-5.00004-9.

Mundike, J., Collard, F.-X. & Görgens, J.F., 2016. Torrefaction of invasive alien plants: Influence of heating rate and other conversion parameters on mass yield and higher heating value. Bioresource Technology, 209, pp.90–99. 10.1016/j.biortech.2016.02.082.

Gottumukkala, L.D. et al., 2016. Opportunities and prospects of biorefinery-based valorisation of pulp and paper sludge. Bioresource Technology, 215.10.1016/j.biortech.2016.04.015.

Ridout, A.J. et al., 2016. Energy conversion assessment of vacuum, slow and fast pyrolysis processes for low and high ash paper waste sludge. Energy Conversion and Management, 111, pp.103–114.10.1016/j.enconman.2015.12.043.

Collard, F.-X. et al., 2015. Influence of impregnated iron and nickel on the pyrolysis of cellulose. Biomass and Bioenergy, 80, pp.52-62. 10.1016/j.biombioe.2015.04.032.

Nsaful, F. et al., 2015. Lignocellulose pyrolysis with condensable volatiles quantification by thermogravimetric analysis—Thermal desorption/gas chromatography–mass spectrometry method. Journal of Analytical and Applied Pyrolysis, 116, pp.86–95.10.1016/j.jaap.2015.10.002.

Collard, F.-X. & Blin, J., 2014. A review on pyrolysis of biomass constituents: Mechanisms and composition of the products obtained from the conversion of cellulose, hemicelluloses and lignin. Renewable and Sustainable Energy Reviews, 38, pp.594–608. 10.1016/j.rser.2014.06.013.

Collard, F.-X. et al., 2012. Influence of impregnated metal on the pyrolysis conversion of biomass constituents. Journal of Analytical and Applied Pyrolysis, 95, pp.213–226. 10.1016/j.jaap.2012.02.009.

Elyounssi, K. et al., 2012. Improvement of charcoal yield by two-step pyrolysis on eucalyptus wood: A thermogravimetric study. Fuel, 96, pp.161-167.10.1016/j.fuel.2012.01.030.

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Postdoctoral Fellow
[ultimate_modal modal_title="Dr Sefakor Dogbe" modal_on="text" modal_on_align="left" read_text="Dr Sefakor Dogbe" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Bioresource Engineering, Process development & Exergy-based methods

Short Bio

Education
PhD (Chemical Engineering), Stellenbosch University (2020)
BSc (Chemical Engineering), Kwame Nkrumah University of Science and Technology (KNUST) (2008)

Professional Experience
2020 – present: Postdoctoral fellow, Department of Process Engineering, Stellenbosch University, South Africa
2012 – 2015: Teacher, Department of Science, Akatsi Senior High Technical School, Akatsi, Ghana
2008 – 2009: Teaching assistant, Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana

Research Interests

Exergy analysis and exergy-based methods
Process simulation and development
Waste heat recovery systems
Techno-economic assessment of biorefineries

Selected Publications

Visit my Google Scholar Profile for a complete list of my publications.

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Bioresource Engineering, Process development & Exergy-based methods
[ultimate_modal modal_title="Prof Christie Dorfling" modal_on="text" modal_on_align="left" read_text="Prof Christie Dorfling" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Hydrometallurgy, metal recycling & process modelling

Short Bio

Christie started his career as an engineer in the Measurement and Control Division at Mintek before joining the Department of Process Engineering at Stellenbosch University as a lecturer. He currently fulfills the role of Chairperson for the Department. His research interests in hydrometallurgy include characterisation and modelling of leaching systems, recovery of base and precious metals from leach solutions, and development of processes for metal recovery from low grade ores and secondary resources.

Research Interests

Hydrometallurgy, metal recycling, process modelling

Selected Publications

A list of his published works can be found on his Google Scholar profile.

Teaching

Thermodynamics A224
Mineral Processing 345
Chemical Engineering 224 (Principles and Processes)
Chemical Engineering 254 (Mass and Energy Balances)

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Hydrometallurgy, metal recycling & process modelling
[ultimate_modal modal_title="Dr Somayeh Farzad" modal_on="text" modal_on_align="left" read_text="Dr Somayeh Farzad" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Bioprocess Engineering & Life-cycle assessment

Short Bio

Education

  • PhD (Chemical Engineering), Tarbiat Modares University, 2012
  • MSc (Chemical Engineering), Sharif University, 2005
  • BEng (Chemical Engineering), Tehran University, 2002

 

Professional Experience

  • Postdoctoral Researcher
    Department of Process Engineering, Stellenbosch University
    2014 - present
  • Assistant Professor
    Chemical Engineering Faculty, University of Environment (Iran)
    2012 - 2014 
  • R&D Manager
    Mabna Energy Renovation and Reclamation Consultants Co.
    2010 - 2013
  • Senior Process Engineer
    Mabna Energy Renovation and Reclamation Consultants Co.
    2005 - 2010

Research Interests

  • Process simulation and development
  • Biomass processing for the production of fuels and chemicals
  • Biomass processing for production of green rubber
  • Gasification of biomass

Selected Publications

A list of her published works can be found on her Google Scholar profile.

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Bioprocess Engineering & Life-cycle assessment
[ultimate_modal modal_title="Dr Mohammadreza Fatahi" modal_on="text" modal_on_align="left" read_text="Dr Mohammadreza Fatahi" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Mineral Processing, Process Numerical Modelling & Simulation

Short Bio

Education

PhD (Mining Engineering), Tehran University, 2017
MSc (Mining Engineering), Tehran University, 2011
BEng (Mining Engineering), Tehran University, 2009

Professional Experience

Postdoctoral Researcher
Department of Process Engineering, Stellenbosch University
2019 – Present

Project Manager & Head of Mining and Mineral Processing Department
Noyan Industrial and Mineral Research Center
2019 - 2020

Project Engineer
Feyz Gohar Zagros Company
2018-2019

Supervisor of Lateritic Nickel Mine
Ghadir (Investment Company)
2015 – 2016

Project Engineer
R&D Expert and Manager
Jahan Nemov (Mining and Industrial Company)
2012 – 2015

Senior Process Engineer
Daneshfaravaran (Engineering Company)
2011 - 2012

Research Interests

Numerical modelling and simulation of multiphase and particulate flows in mineral processing systems design,
Execute, supervise and control the basic and detailed mineral processing studies for all metallic, non-metallic and industrial minerals in all areas including crushing, grinding, classification, physical separation, flotation and hydrometallurgy from bench scale to semi-industrial scale.

Selected Publications

A list of his published works can be found on his Google Scholar Profile.

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Mineral Processing, Process Numerical Modelling & Simulation
[ultimate_modal modal_title="Dr Carla Latsky" modal_on="text" modal_on_align="left" read_text="Dr Carla Latsky" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Thermodynamics & Phase Equilibria

Short Bio

2020 – present: Postdoctoral Research Fellow in the Separation Technology Research Group at the Department of Process Engineering at Stellenbosch University

2016 – 2019: PhD in Chemical Engineering at Stellenbosch University

2011 – 2015: BEng (Chemical Engineering) degree at Stellenbosch University

Research Interests

Thermodynamics
Phase equilibria
Thermodynamic modelling
Supercritical fluid fractionation

Selected Publications

A list of her published works can be found on herGoogle Scholar profile.

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Thermodynamics & Phase Equilibria
[ultimate_modal modal_title="Dr Carla Louw" modal_on="text" modal_on_align="left" read_text="Dr Carla Louw" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Antimicrobial Resistance & Machine Learning

Short Bio

Carla Louw completed her PhD in Biochemistry at Stellenbosch University. Her current research involves the use of statistical and machine learning techniques to develop novel antimicrobial resistance monitoring techniques. This project is funded by Grand Challenges Africa, in collaboration with the Medical Research Council and the Bill & Melinda Gates Foundation.

Research Interests

Biochemistry
Bioinformatics
Antimicrobial Resistance
Machine Learning

Selected Publications

A list of her published works can be found on her Google Scholar profile.

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Antimicrobial Resistance & Machine Learning
[ultimate_modal modal_title="Dr Wildu Malan" modal_on="text" modal_on_align="left" read_text="Dr Wildu Malan" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Pyrometallurgy and thermodynamic modelling

Short Bio

Dr Malan has been appointed as a postdoctoral fellow at the Department of Process Engineering since 2020.

PhD (Metallurgical Engineering), University of Pretoria, 2019

MSc (Chemical Engineering), Stellenbosch University , 2014

BEng (Mining Engineering), Stellenbosch University, 2011

Research Interests

Pyrometallurgy (dynamic and static equilibration experiments)
Thermodynamic modelling of metal and oxide systems using FactSage
Numerical modelling of multiphase flows in mineral processing
Hydrometallurgy (leaching, solid extraction, electrowinning etc) from bench scale to semi-industrial scale.

Selected Publications

Visit my Google Scholar profile for a complete list of my publications.

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Pyrometallurgy and thermodynamic modelling
[ultimate_modal modal_title="Dr Mohsen Mandegari" modal_on="text" modal_on_align="left" read_text="Dr Mohsen Mandegari" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Process Development, Techno-Economics, Energy & Exergy

Short Bio

    Education

      PhD (Chemical Engineering), Tarbiat Modares University, 2012
      MSc (Chemical Engineering), Tarbiat Modares University, 2007
      BEng (Chemical Engineering), Persian Gulf University, 2002

     

    Professional Experience

      Postdoctoral Researcher
      Department of Process Engineering, Stellenbosch University
      2014 - present

      Assistant Professor
      Mazandaran University of Science and Technology
      2013 - 2014 

      Engineering Manager
      Shargan Consultant Engineering Co.
      2010 - 2014

      Project Engineer
      Iran International General Contractor Co. (IGC)
      2008-2010

      R&D Manager
      Pajan Petro Sazeh Co.
      2007 - 2008

      Senior Process Engineer/ Energy Auditor
      Mabna Energy Renovation and Reclamation Consultants Co.
      2004 - 2007

      Research Interests

        Techno-economic evaluation of biorefineries
        Process simulation and development
        Energy recovery and optimization
        Desiccant systems

      Selected Publications

      A list of his published works can be found on his Google Scholar profile.

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      Process Development, Techno-Economics, Energy & Exergy
[ultimate_modal modal_title="Dr Benjamin A. Oyegbile" modal_on="text" modal_on_align="left" read_text="Dr Benjamin A. Oyegbile" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow

Short Bio

Dr. Oyegbile holds a PhD in Environmental Science and is currently a recipient of the prestigious NRF-TWAS Postdoctoral research fellowship at the Process Engineering department, Stellenbosch University, South Africa. Prior to this current position, he was involved in the reasearch activities at the Chair of Minerals Processing, Brandenburg University of Technology, Cottbus, Germany and holds a faculty position at the department of Civil and Environmental Engineering, Elizade University, Ilara-Mokin, Nigeria.

Research Interests

His research interest revolves around fine particle separation using physicochemical processes—wet agglomeration, agglomeration/flocculation reactor design and optimization as well as experimental and computational modelling of the hydrodynamics of fine particle separation. His futute career plan is to deepen his research skills in his core research areas and help in the training of future generation of professionals in the field of Environmental Process Engineering.

Selected Publications

A list of his published works can be found on his Google Scholar profile.

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Postdoctoral Fellow
[ultimate_modal modal_title="Dr Abdul Petersen" modal_on="text" modal_on_align="left" read_text="Dr Abdul Petersen" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow
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Postdoctoral Fellow
[ultimate_modal modal_title="Dr Kim Trollope" modal_on="text" modal_on_align="left" read_text="Dr Kim Trollope" overlay_bg_opacity="80" el_class="openmodal" img_size="80" header_text_color="#78b0de" txt_color="#78b0de" header_font_style="font-weight:bold;" header_font_size="desktop:22px;" trigger_text_font_style="font-weight:bold;" trigger_text_font_size="desktop:16px;"]
Postdoctoral Fellow

Short Bio

Education
PhD (Microbiology), Stellenbosch University 2015
MSc cum laude (Institute for Wine Biotechnology), Stellenbosch University 2006
BSc Honours cum laude (Institute for Wine Biotechnology), Stellenbosch University 2003
BSc (Natural Sciences), Stellenbosch University 2002

Professional Experience
2018 – present: Postdoctoral fellow, Department of Process Engineering, Stellenbosch University
2015 – 2017: Postdoctoral fellow, Department of Microbiology, Stellenbosch University
2007 – 2010: Research Assistant, Department of Process Engineering, Stellenbosch University

Awards and Grants
2015 – 2017: NRF Innovation Postdoctoral Fellowship
2011: L’Oreal-UNESCO For Women in Science Regional PhD Fellowship for sub-Saharan Africa

Research Interests

Yeast biotechnology
Enzymology
Molecular biology
Biofuels
Waste valorisation

Selected Publications

A list of her published works can be found on her Google Scholar profile.

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Postdoctoral Fellow