Room: Amazon
Date: Tuesday, 19 May 2026
Time: 17:30 - 18:30 CEST
Session code 4AO.8
Integrated gasification, gas cleaning and upgrading demonstration
Gasification of Biogenic Waste in an Oxygen-Blown 1 Mwth Circulating Fluidized Bed Reactor with Ilmenite As Bed Material and Syngas Cleaning
Short Introductive summary
Fluidized bed gasification can effectively convert a wide range of solid biogenic waste streams to synthesis gas for subsequent biofuel synthesis steps. In the present study, the oxygen-steam circulating fluidized bed (CFB) gasification of wood and torrefied corn residue was investigated in a 1 MWth pilot plant including syngas cleaning. Ilmenite was used as the bed material for the first time in CFB gasification at this scale. Ilmenite possesses oxygen carrier and catalytic behavior, which improves the oxygen distribution inside the reactor and promotes tar cracking. The autothermal gasifier was operated between 770 and 920 °C with about 240 kg/h feedstock (SBR = 0.7, ER = 0.25). Cold gas efficiencies of up to 70 % and carbon conversion efficiencies of about 92 % were achieved. An innovative gas cleaning unit, consisting of a filter, a raw gas scrubber, a compression, a hydrolysis, a BTEX removal, and a sour gas removal using a MDEA/MEA amine solvent, was applied to remove the unwanted impurities for the synthesis. This study demonstrates the process chain at semi-industrial scale, thus validating the concept and providing the foundation for scale-up.
Presenter
Marc SIODLACZEK
Institute for Energy Systems and Technology, Technical University of Darmstadt, GERMANY
Presenter's biography
Marc Siodlaczek earned his B.Sc. and M.Sc. in Chemical Engineering from Karlsruhe Institute of Technology, specializing in thermodynamics and process engineering. He interned at BASF and worked at CERN. Since 2022, he is a Research Scientist at Technical University of Darmstadt.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
M. Shahrivar, Institute for Energy Systems and Technology, Technical University of Darmstad, GERMANY
L. Hassel, Institute for Energy Systems and Technology, Technical University of Darmstad, GERMANY
P. Eiden, Institute for Energy Systems and Technology, Technical University of Darmstad, GERMANY
J. Ströhle, Institute for Energy Systems and Technology, Technical University of Darmstad, GERMANY
B. Epple, Institute for Energy Systems and Technology, Technical University of Darmstad, GERMANY
Session reference: 4AO.8.4