Sequential hydrothermal gasification of biomass to hydrogen

R. Hashaikeh, Z. Fang, I. S. Butler, J. A. Kozinski

Research output: Contribution to conferencePaperpeer-review

Abstract

A new technology, in which a renewable biomass is used to produce hydrogen fuel, was presented. This hydrogen could be used as a feed for fuel cells to generate electricity or in other energy-producing processes. Degradation and gasification of cellulose-based biomass in compressed water was studied at 100°400°C. Complete dissolution of the cellulose was achieved at 333°C. The evolution mechanism based on a rapid hydrolysis of the cellulose to oligomers and glucose was suggested. Glucose was then used as a model compound to characterize the chemistry of biomass gasification. Catalytic effects of Pt/Al2O3 on the gasification temperature were determined. A mixture of H2, CO2, and CH4 was produced. Quantitative analysis of the total organic carbon (TOC) in the liquid residue indicated 67% carbon gasification efficiency at 330°C. Qualitative analyses of liquid residues showed that the main decomposition products in the liquid phase were alcohols and carboxylic acids. The hydrogen fuel could be efficiently generated from biomass.

Original languageEnglish (US)
Pages95-96
Number of pages2
StatePublished - 2004
Event30th International Symposium on Combustion, Abstracts of Symposium Papers - Chicago, IL, United States
Duration: Jul 25 2004Jul 30 2004

Conference

Conference30th International Symposium on Combustion, Abstracts of Symposium Papers
CountryUnited States
CityChicago, IL
Period7/25/047/30/04

ASJC Scopus subject areas

  • Engineering(all)

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