矿物质对煤热解气化过程中NH_3形成的影响  

THE EFFECT OF MINERAL MATTER ON THE NH_3 FORMATION DURING COAL PYROLYSIS AND GASIFICATION

作　　者：赵娅鸿[1] 林建英[1] 常丽萍[1] 赵炜[1] 谢克昌[1] 

机构地区：[1]太原理工大学教育部和山西省煤科学与技术重点实验室,太原030024

出　　处：《环境化学》2004年第1期26-30,共5页Environmental Chemistry

基　　金：国家重点基础研究发展规划 (G1 9990 2 2 1 0 1 );国家自然科学基金( 2 0 2 760 46)资助项目

摘　　要：以酸洗脱灰煤、原煤及添加含铁化合物的煤样作为研究对象 ,考察了煤中的矿物质和添加物铁对平朔气煤热解、CO2 气化和水蒸气气化过程中形成的NOx 前驱物NH3释放的影响 .结果表明 :煤中的矿物质和添加物铁在煤的热解和气化过程中 ,对NH3的释放均有明显的作用 ;煤中矿物质的脱除和添加剂的存在均可以减少NH3的释放 。A series of coal pyrolysis/gasification experments have been done under different reaction conditions with Pingshuo raw coal,clean coal and raw coal with Fe additive in pure Ar,CO 2 or steam in Ar.The experimental data indicate that the effect of minerals and addictive Fe on the formation of NO x precrusorsNH 3 during coal pyrolysis,CO 2 or steam gasification is obvious.The effect of minerals in coal and additive Fe on NH 3 formation is different.The minerals in coal can promote the release of NH 3, but additive Fe has a negative effect on the release of NH 3.

关 键 词：矿物质 煤 热解 气化 氨气 铁 

分 类 号：TQ541[化学工程—煤化学工程]