文献类型：期刊文献

英文题名：Gasification characteristics of biomass at a high-temperature steam atmosphere

作者：Li, Wenyue[1]; Wu, Shiyong[1]; Wu, Youqing[1]; Huang, Sheng[1]; Gao, Jinsheng[1]

机构：[1]East China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：194

外文期刊名：FUEL PROCESSING TECHNOLOGY

收录：;EI(收录号：20192607104792);WOS:【SCI-EXPANDED(收录号:WOS:000477787100015)】；

基金：This work was supported by the Fundamental Research Funds for the Central Universities (222201718003).

语种：英文

外文关键词：Biomass; High-temperature steam gasification; Pore structure

摘要：Gasification activity of seven kinds of biomass (rice husk, rice straw, maize straw, cotton straw, wood chip, coconut fiber, and chicken manure) at 900 degrees C with a high-temperature steam atmosphere were experimentally studied in a self-designed reactor. The effects of temperature and reaction time on the pore structure of rice husk char were analyzed. Gas chromatography and a full-automatic surface area analyzer were used to measure the composition of product gas, the specific surface area, and the pore size distribution of rice husk char. Results show that cotton straw has the highest gasification activity and needs 5 min for complete reaction. The contents of H-2, CO, CH4, and CO2 in product gas are 50.77%, 21.39%, 5.51%, and 21.39%, respectively. The gasification activity of rice straw is the lowest and it needs 40 min for complete reaction. As the increasing of reaction time, the specific surface area of rice husk char decreases from 273.44m(2)/g to 1.33m(2)/g. Besides, at 500 - 800 degrees C, the specific surface area increases from 40.93 m(2)/g to 334.44 m(2)/g, mainly due to the generation of new micropores and mesopores, but it reduces to 1.33 m(2)/g at 900 degrees C as a result of the disappearance of micropores and mesopores.