Projects per year
Abstract
The utilization of locally available renewable resources is crucial for the creation of a sustainable energy system in the future. Biogas, a product of the anaerobic digestion of biogenic residues, exhibits great potential as feedstock to generate hydrogen for fuel cell mobility applications. A 10 kW fixed-bed chemical looping research system, to-date the largest in the world, was operated to proof the applicability of this versatile process for synthetic biogas utilization. In this experimental study, the focus was laid on examining the influence of different operating parameters (biogas composition, steam co-feeding, process temperature) on the attainable hydrogen purity and system efficiency. The generated hydrogen, between 90 to 230 g per cycle, was characterized online by ppm-range gas analysis and exhibited a product gas quality between 99.8% and 99.998%. The difference observed is attributed to carbon deposition if synthetic biogas with an increased share of carbon dioxide was supplied. This study involved the longest uninterrupted period of operation of a lab prototype system for fixed-bed chemical looping with 250 hours of time-on-stream, four months of discontinuous service and 50 consecutive experimental cycles.
Original language | English |
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Number of pages | 10 |
Journal | RSC Advances |
Volume | 2019 |
DOIs | |
Publication status | Published - 25 Jul 2019 |
Fields of Expertise
- Mobility & Production
Fingerprint
Dive into the research topics of 'Experimental study on high-purity hydrogen generation from synthetic biogas in a 10 kW fixed-bed chemical looping system'. Together they form a unique fingerprint.Projects
- 1 Finished
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HyStORM - Hydrogen Storage via Oxidation and Reduction of Metals
Hacker, V., Malli, K., Zacharias, R. & Bock, S.
1/03/16 → 31/12/19
Project: Research project
Prizes
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Staatspreis Mobilität 2017 - Forschen. Entwickeln. Neue Wege weisen.
Hacker, Viktor (Recipient), Bock, Sebastian (Recipient), Zacharias, Robert (Recipient) & Voitic, Gernot (Recipient), 27 Nov 2017
Prize: Prizes / Medals / Awards
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