文献类型：期刊文献

英文题名：Synergistic effects on co-pyrolysis of lignite and high-sulfur swelling coal

作者：Fei, Jinxia[1];Zhang, Jie[1];Wang, Fuchen[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：95

起止页码：61

外文期刊名：JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS

收录：;EI(收录号：20121514933621);WOS:【SCI-EXPANDED(收录号:WOS:000303549400009)】；

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

语种：英文

外文关键词：Lignite; Bituminous coal; Co-pyrolysis; Mineral matter; Synergistic effect

摘要：Co-pyrolysis of a lignite coal and a bituminous coal was carried out on a fixed-bed reactor. The lignite was enriched with calcium, and the bituminous coal featured in high sulfur and strong swelling. Experiments were also conducted for the blends using the acid-washed lignite and/or the acid washed bituminous coal to address the influences of calcium in the lignite on the synergistic behaviors. Calcium in the lignite exhibited some aspects of synergy including the catalytic cracking reactions of tar, the retention of sulfur in the char, and the catalyzed polyaromatization and gasification of char. These synergies impacted the differences in the product distribution and gas composition between the co-pyrolytic results and the additive ones. Moreover, there appeared to be a synergistic effect on the cross-linking reaction of volatile matter, resulting in an increase in the char yield irrespective of coal demineralization. The co-pyrolysis was also observed to destroy the swelling of coal. This synergistically increased the tar yield due to less resistant escaping of tar from the intra-particles of coal. (C) 2012 Elsevier B.V. All rights reserved.