Experimental Assessment of Biomass Gasification for Hydrogen Production

Seong Gu Hong; Byung Hwan Um

doi:10.5389/KSAE.2022.64.5.001

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2022 Vol.64, Issue 5 Next Page

Experimental Assessment of Biomass Gasification for Hydrogen Production 수소생산을 위한 바이오매스 가스화 반응의 실험적 고찰

2022. pp. 1-8

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Abstract

Hydrogen can be produced by gasification of biomass and other combustible fuels. Depending on oxydant agents, syngas or producer gas compositions become quite different. Since biomass has limited amount of hydrogen including moisture in it, the hydrogen concentration in the syngas is about 15% when air is supplied for oxidant agent. Experiments were conducted to investigate the channges in hydrogen concentrations in syngas with different oxidant agent conditions, fuel conditions, and external heat supply. Allothermal reaction resulted in higher concentrations of hydrogen with the supply of steam over air, reaching over 60%. Hydrogen is produced by water-gas and water-gas shift reactions. These reactions are endothermic and require enough heat. Autothermal reaction occurred in the downdraft gasifier used in the experiment did not provide enough heat in the reactions for hydrogen production. Steam seems a more desirable oxidant agent in producing the syngas with higher concentrations of hydrogen from biomass gasifications since nitrogen is included in syngas when air is used.

Keywords

Biomass

steam gasification

allothermal gasification

downdraft gasifier

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Information

Publisher :The Korean Society of Agricultural Engineers
Publisher(Ko) :한국농공학회
Journal Title :Journal of Korean Society of Agricultural Engineers
Journal Title(Ko) :한국농공학회논문집
Volume : 64
No :5
Pages :1-8
Received Date : 2022-07-18
Revised Date : 2022-08-19
Accepted Date : 2022-08-22
DOI :https://doi.org/10.5389/KSAE.2022.64.5.001

Journal of Korean Society of Agricultural Engineers ISSN:1738-3692(Print) 2093-7709(Online) 한국농공학회논문집

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