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LAPSE:2023.24294

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, Roger Gläser

March 28, 2023

Abstract
A new approach for biomass liquefaction was developed and evaluated in a joint research project. Focus of the project, called FEBio@H2O, 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@H2O 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.

Record ID

LAPSE:2023.24294

Keywords

heterogeneously catalyzed reaction, hydrogen donor, hydrothermal process, liquefaction, transfer hydrogenation, wet biomass

Subject

Materials

Suggested Citation

Klemm M, Kröger M, Görsch K, Lange R, Hilpmann G, Lali F, Haase S, Krusche M, Ullrich F, Chen Z, Wilde N, Al-Naji M, Gläser R. Experimental Evaluation of a New Approach for a Two-Stage Hydrothermal Biomass Liquefaction Process. (2023). LAPSE:2023.24294

Author Affiliations

Klemm M: DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH, 04347 Leipzig, Germany
Kröger M: DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH, 04347 Leipzig, Germany
Görsch K: DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH, 04347 Leipzig, Germany
Lange R: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Hilpmann G: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Lali F: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Haase S: Faculty of Mechanical Science and Engineering, Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, 01069 Dresden, Germany
Krusche M: Advanced Machinery & Technology Chemnitz GmbH, 09125 Chemnitz, Germany
Ullrich F: Advanced Machinery & Technology Chemnitz GmbH, 09125 Chemnitz, Germany
Chen Z: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany
Wilde N: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany
Al-Naji M: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany
Gläser R: Faculty of Chemistry and Mineralogy, Institute of Chemical Technology, Universität Leipzig, 04103 Leipzig, Germany [ORCID]

Journal Name

Energies

Volume

Issue

Article Number

E3692

Year

2020

Publication Date

2020-07-17

DOI:

https://doi.org/10.3390/en13143692