Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier

doi:10.1016/j.renene.2006.11.010

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	Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier
	Lv, Pengmei ; Yuan, Zhenhong ; Ma, Longlong ; Wu, Chuangzhi ; Chen, Yong ; Zhu, Jingxu
	2007-10-01
发表期刊	RENEWABLE ENERGY
ISSN	0960-1481
卷号	32 期号:13 页码:2173-2185
通讯作者	lvpm@ms.giec.ac.cn
摘要	Biomass gasification is an important method to obtain renewable hydrogen, However, this technology still stagnates in a laboratory scale because of its high-energy consumption. In order to get maximum hydrogen yield and decrease energy consumption, this study applies a self-heated downdraft gasifier as the reactor and uses char as the catalyst to study the characteristics of hydrogen production from biomass gasification. Air and oxygen/steam are utilized as the gasifying agents. The experimental results indicate that compared to biomass air gasification, biomass oxygen/steam gasification improves hydrogen yield depending on the volume of downdraft gasifier, and also nearly doubles the heating value of fuel gas. The maximum lower heating value of fuel gas reaches 11.11 MJ/ N m(3) for biomass oxygen/steam gasification. Over the ranges of operating conditions examined, the maximum hydrogen yield reaches 45.16 g H-2/kg biomass. For biomass oxygen/steam gasification, the content of H-2 and CO reaches 63.27-72.56%, while the content Of H2 and CO gets to 52.19-63.31% for biomass air gasification. The ratio of H-2/CO for biomass oxygen/steam gasification reaches 0.70-0.90, which is lower than that of biomass air gasification, 1.06-1.27. The experimental and comparison results prove that biomass oxygen/steam gasification in a downdraft gasifier is an effective, relatively low energy consumption technology for hydrogen-rich gas production. (C) 2006 Elsevier Ltd. All rights reserved.
文章类型	Article
其他摘要	Biomass gasification is an important method to obtain renewable hydrogen, However, this technology still stagnates in a laboratory scale because of its high-energy consumption. In order to get maximum hydrogen yield and decrease energy consumption, this study applies a self-heated downdraft gasifier as the reactor and uses char as the catalyst to study the characteristics of hydrogen production from biomass gasification. Air and oxygen/steam are utilized as the gasifying agents. The experimental results indicate that compared to biomass air gasification, biomass oxygen/steam gasification improves hydrogen yield depending on the volume of downdraft gasifier, and also nearly doubles the heating value of fuel gas. The maximum lower heating value of fuel gas reaches 11.11 MJ/ N m(3) for biomass oxygen/steam gasification. Over the ranges of operating conditions examined, the maximum hydrogen yield reaches 45.16 g H-2/kg biomass. For biomass oxygen/steam gasification, the content of H-2 and CO reaches 63.27-72.56%, while the content Of H2 and CO gets to 52.19-63.31% for biomass air gasification. The ratio of H-2/CO for biomass oxygen/steam gasification reaches 0.70-0.90, which is lower than that of biomass air gasification, 1.06-1.27. The experimental and comparison results prove that biomass oxygen/steam gasification in a downdraft gasifier is an effective, relatively low energy consumption technology for hydrogen-rich gas production.
关键词	Biomass Oxygen/steam Gasification Hydrogen Air Downdraft Gasifier
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.renene.2006.11.010
研究领域[WOS]	Energy & Fuels
URL	查看原文
关键词[WOS]	CATALYTIC GASIFICATION ; STEAM GASIFICATION ; FLUIDIZED-BED ; TECHNOLOGIES
收录类别	SCI
语种	英语
WOS类目	Energy & Fuels
WOS记录号	WOS:000248205400004
引用统计	被引频次：244[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/3494
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Western Ontario, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada
推荐引用方式 GB/T 7714	Lv, Pengmei,Yuan, Zhenhong,Ma, Longlong,et al. Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier[J]. RENEWABLE ENERGY,2007,32(13):2173-2185.
APA	Lv, Pengmei,Yuan, Zhenhong,Ma, Longlong,Wu, Chuangzhi,Chen, Yong,&Zhu, Jingxu.(2007).Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier.RENEWABLE ENERGY,32(13),2173-2185.
MLA	Lv, Pengmei,et al."Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier".RENEWABLE ENERGY 32.13(2007):2173-2185.

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