文献类型：期刊文献

英文题名：Pyrolytic characteristics of rice straw and its constituents catalyzed by internal alkali and alkali earth metals

作者：Shi, Li[1];Yu, Sang[1];Wang, Fu-Chen[2];Wang, Jie[1]

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

年份：2012

卷号：96

期号：1

起止页码：586

外文期刊名：FUEL

收录：;EI(收录号：20121214870057);WOS:【SCI-EXPANDED(收录号:WOS:000301853900067)】；

基金：The research work is funded by the National Natural Science Foundation of China (Grant no. 21076081) and the National Program on Key Basic Research Project (973 Program, Grant no. 2010CB227005-03).

语种：英文

外文关键词：Rice straw; Pyrolysis; Mineral matter; Biomass constituents

摘要：Pyrolysis of raw rice straw (RS), water-washed rice straw (WRS) and acid-washed rice straw (ARS) was conducted on a fixed bed reactor. A standard detergent method was used to determine the fiber constituents including neutral detergent solute (NDS), hemicellulose, cellulose and lignin in RS, WRS, ARS and their chars. Results showed that water washing removed most alkali metals (K and Na) from RS, and acid washing removed almost all alkali and alkali earth metals (K, Na, Ca and Mg); meanwhile, either washing eluted a portion of NDS but nearly unaffected hemicellulose, cellulose and lignin in RS. Attempts were made to assess the intermingled influences of the internal alkali and alkali earth metals (AAEMs) and the varied organic matter on the pyrolysis behaviors. It was revealed that the AAEMs inherent in RS had multiple impacts on the product distribution, the decomposition characteristics of fiber constituents, and the compositions of all gaseous, liquid, and char products. (C) 2012 Elsevier Ltd. All rights reserved.