Room: Poster Area
Date: Thursday, 21 May 2026
Time: 17:30 - 18:30 CEST
Session code 6CV.9
Carbon-based materials and applications
Biochar-Based Composite Membranes for the Cost-Effective Separation of Hydrogen from Synthesis Gas
Short Introductive summary
The current study investigates biochar-derived carbon membranes for hydrogen separation from synthesis gas. The membranes are made of biochar prepared by thermo-catalytic reforming of waste biogenic feedstocks, blended with silicate or geopolymer binders to produce stable, porous structures. To allow for selective hydrogen transfer, the carbon matrices are pre-coated with abundant metals such as nickel and iron using physical vapor deposition, offering a cost-efficient substitute for palladium-based membranes. The study examines the influence of feedstock characteristics, particle size, binder type, and metal coating of membranes on performance and stability under high temperature and pressure. Furthermore, the study promotes a circular and decentralized hydrogen economy by valorization of biogenic wastes to functional separation materials. Lastly, this research contributes towards the development of low-cost, robust, and sustainable membrane systems for hydrogen cleaning, extendable to gas
Presenter
Nikolas HERZ
Fraunhofer UMSICHT, Thermochemical Conversion Technologies, GERMANY
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
C. Kick, Fraunhofer UMSICHT, Sulzbach-Rosenberg, GERMANY
R. Daschner, Fraunhofer UMSICHT, Sulzbach-Rosenberg, GERMANY
Session reference: 6CV.9.5