Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 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 | |
| Source Publication | RENEWABLE ENERGY
 |
| ISSN | 0960-1481 |
| Volume | 32Issue:13Pages:2173-2185 |
| Corresponding Author | lvpm@ms.giec.ac.cn |
| Abstract | 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. |
| Subtype | Article |
| Other Abstract | 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. |
| Keyword | Biomass Oxygen/steam Gasification Hydrogen Air Downdraft Gasifier |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1016/j.renene.2006.11.010 |
| WOS Subject Extended | Energy & Fuels |
| URL | 查看原文 |
| WOS Keyword | CATALYTIC GASIFICATION ; STEAM GASIFICATION ; FLUIDIZED-BED ; TECHNOLOGIES |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:000248205400004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/3494 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| Recommended Citation 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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