Projektitutkija Abayneh Demesa

E-mail: Abayneh.Demesa@lut.fi
Mobile phone: +358 44 563 5493

Current Organisation
Computational and Process Engineering (Superior organisation: LUT School of Engineering Science)

Research Interest
The objective of the current research is to study and develop a process where forest industry wastes are used for production of carboxylic acids. These chemicals are currently produced from fossil sources increasing the consumption of fossil raw materials. The conversion of organic matters to valuable chemicals can be done by partial oxidation of the organic molecules in wet oxidation process at elevated temperature and pressure. The produced carboxylic acids are then separated from the aqueous stream and purified to products. Separation might be based on extraction and solvent recovery, or possibly on membrane technology. From scientific viewpoint, the goal is to generate new knowledge and novel technology: (i) chemistry and kinetics of wet oxidation of organic matter, including catalysis (ii) development of novel hybrid separation methods, such as reactive extraction, membrane extraction and combined oxidation and membrane separation. From practical viewpoint, the study has both social and environmental benefits since it reduces the waste discharges to the environment, increases the efficiency of the usage of biomass in pulp and paper industry and increases the energy efficiency of chemical industry in global terms by reducing the amount of fossil raw materials used for chemical production.

Publications
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Characterization of Cellulase-Treated Fibers and Resulting Cellulose Nanocrystals Generated through Acid Hydrolysis (2018)
A1 Journal article (refereed), original research
Beyene Dawit, Chae Michael, Dai Jing, et al.
Materials
Erratum: Valorization of lignin by partial wet oxidation using sustainable heteropoly acid catalysts (Molecules (2017) 22 (1625) DOI: 10.3390/molecules22101625) (2018)
A1 Journal article (refereed), original research
Demesa Abayneh Getachew, Laari Arto, Sillanpää Mika, et al.
Molecules
Enzymatically-Mediated Co-Production of Cellulose Nanocrystals and Fermentable Sugars (2017)
A1 Journal article (refereed), original research
Beyene Dawit, Chae Michael, Dai Jing, et al.
Catalysts
Valorization of Lignin by Partial Wet Oxidation Using Sustainable Heteropoly Acid Catalysts (2017)
A1 Journal article (refereed), original research
Demesa Abayneh Getachew, Laari Arto, Sillanpää Mika, et al.
Alkaline partial wet oxidation of lignin for production of carboxylic acids (2015)
A1 Journal article (refereed), original research
Demesa Abayneh, Laari Arto, Turunen Ilkka, et al.
Chemical Engineering and Technology
Catalytic Partial Wet Oxidation of Lignin for Production of Chemicals (2015)
A4 Conference proceedings
Abayneh Demesa, Arto Laari, Mika Sillanpää
Catalytic Wet Oxidation of Lignin for Production of Carboxylic Acids
(2015)
A4 Conference proceedings
Demesa Abayneh, Laari Arto, Sillanpää Mika
European Biomass Conference And Exhibition
Comparison of solvents for the recovery of low-molecular carboxylic acids and furfural from aqueous solutions (2014)
A1 Journal article (refereed), original research
Demesa Abayneh, Laari Arto, Tirronen Esko, et al.
Chemical Engineering Research and Design
Production of carboxylic acids from forest industry wastes by wet oxidation (2014)
Other
Demesa Abayneh, Laari Arto, Turunen Ilkka




Last updated on 2019-16-02 at 04:02

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