Experimental Evaluation of a New Approach for a Two-Stage Hydrothermal Biomass Liquefaction Process

Marco Klemm, Michael Kröger, Kati Görsch, Rüdiger Lange, Gerd Hilpmann, Farzad Lali, Stefan Haase, Michael Krusche, Frank Ullrich, Zihao Chen, Nicole Wilde, Majd Al-Naji and Roger Gläser
Additional contact information
Marco Klemm: DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH, 04347 Leipzig, Germany
Michael Kröger: DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH, 04347 Leipzig, Germany
Kati Görsch: DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH, 04347 Leipzig, Germany
Rüdiger Lange: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Gerd Hilpmann: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Farzad Lali: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Stefan Haase: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Michael Krusche: Advanced Machinery & Technology Chemnitz GmbH, 09125 Chemnitz, Germany
Frank Ullrich: Advanced Machinery & Technology Chemnitz GmbH, 09125 Chemnitz, Germany
Zihao Chen: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany
Nicole Wilde: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany
Majd Al-Naji: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany
Roger Gläser: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany

Energies, 2020, vol. 13, issue 14, 1-15

Abstract: A new approach for biomass liquefaction was developed and evaluated in a joint research project. Focus of the project, called FEBio@H 2 O, lies on a two-step hydrothermal conversion. Within step 1, the input biomass is converted employing a hydrothermal degradation without added catalyst or by homogeneous catalysis. Within step 2, the hydrogen accepting products of step 1, e.g., levulinic acid (LA) are upgraded by a heterogeneously catalyzed hydrogenation with hydrogen donor substances, e.g., formic acid (FA). As a result, components with an even lower oxygen content in comparison to step 1 products are formed; as an example, γ-valerolactone (GVL) can be named. Therefore, the products are more stable and contained less oxygen as requested for a possible application as liquid fuel. As a hydrothermal process, FEBio@H 2 O is especially suitable for highly water-containing feedstock. The evaluation involves hydrothermal conversion tests with model substances, degradation of real biomasses, transfer hydrogenation or hydrogenation with hydrogen donor of model substances and real products of step 1, catalyst selection and further development, investigation of the influence of reactor design, the experimental test of the whole process chain, and process assessment.

Keywords: liquefaction; hydrothermal process; transfer hydrogenation; heterogeneously catalyzed reaction; hydrogen donor; wet biomass (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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