Farm-based biogas production, processing, and use in polymer electrolyte membrane (PEM) fuel cells

Ralf Schmersahl*, Jan Mumme, Volkhard Scholz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Biogas production and utilization with polymer electrolyte membrane (PEM) fuel cells provides a clean and reliable option for decentralized energy supply. The investigative experiments confirmed the fundamental suitability of co-generation from biogas with a modified fuel cell system for residential energy supply. Biogas with a methane content of ∼60% is generated by solid-state fermentation of a mixture of grass silage and cattle manure. Subsequently, the biogas is processed in a steam reformer to produce hydrogen. A hydrogen purity of >50% is sufficient for an efficient and stable operation of a PEM fuel cell stack. Power generation via biogas and fuel cells from agricultural residues such as wheat straw can provide a constant power of up to 0.5 kW per hectare of acreage.

Original languageEnglish
Pages (from-to)8946-8950
Number of pages5
JournalIndustrial & Engineering Chemistry Research
Volume46
Issue number26
Early online date9 Nov 2007
DOIs
Publication statusPublished - 19 Dec 2007

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