热力发电Issue(6)：36-41,6.DOI:10.3969/j.issn.1002-3364.2015.06.036
富氢气氛对煤热解特性的影响
Experimental study on coal pyrolysis in hydrogen-rich atmosphere
摘要
Abstract
The thermo-gravimetric analyzer was employed to investigate the effect of hydrogen-rich atmos-phere on pyrolysis behavior of Shaanxi Yanchang bituminous coal.The Ar,H 2 ,CH 4 and mixed gas (φ(CH 4 )∶φ(H 2 )=1∶1,2∶1,1∶2)were chosen as the atmospheres.The results show that,with an in-crease in heating rate,the weight loss of the coal increased in CH 4 atmosphere while decreased in H 2 atmos-phere.Compared with the inert atmosphere,the H 2 and CH 4 can promote the coal pyrolysis.At high tem-peratures,the excess H 2 was adverse to volatile escaping in the mixed gas atmospheres,while it restrained the CH 4 from carbonizing.The EDS,SEM and chemical method analysis results indicate that,compared with the inert atmosphere,in the hydrogen-rich atmosphere,the sulfur removal was more easy going and the coal char had more obvious pore structure.In the mixed gas atmospheres,the particles formed on coal char surface was less than that in CH 4 atmosphere.关键词
煤热解/富氢气氛/热天平/升温速率/脱硫Key words
coal pyrolysis/hydrogen-rich atmosphere/thermo-gravimetric analyzer/heating rate/desulfurization分类
化学化工引用本文复制引用
倪明江,李敏,方梦祥,李超,王勤辉,骆仲泱..富氢气氛对煤热解特性的影响[J].热力发电,2015,(6):36-41,6.基金项目
国家高技术研究发展计划(863)项目(2013AA051203) （863）
国际合作项目(2011DFR60190) （2011DFR60190）
高等学校学科创新引智计划(B08026) （B08026）
