煤炭地下气化煤气爆炸极限的研究  

Research on Explosion Limit of Coal Gas in Underground Coal Gasification

作　　者：罗娟娟[1] 李文军[1] 梁杰[1] 武增礼[2] 钟毓娟[1] 

机构地区：[1]中国矿业大学化学与环境工程学院,北京100083 [2]煤炭科学研究总院检测研究分院,北京100013

出　　处：《煤矿开采》2010年第1期29-31,67,共4页Coal Mining Technology

基　　金：国家自然科学基金项目(50574096)

摘　　要：煤炭在地下气化过程中生成可燃气体,存在着许多安全隐患。分析了密闭空间混合气体的爆炸极限计算公式,研究了最大允许氧含量和惰性气体对可燃气体爆炸的影响,结果表明,为了防止气化煤气发生爆炸,可以通过控制气化剂的进量或加入惰性气体,使可燃气体在爆炸极限范围以外,为煤炭地下气化的现场安全和可行性提供了依据。There are many safety hidden troubles because of combustible gas formation in underground coal gasification. This paper an- alyzed calculation formula of explosion limit of compound gases in confined space and researched influence of maximum permissible oxygen content and inert gas on combustible gas explosion. Results showed that making combustible gas was beyond explosion limit by controlling input quantity of vaporized chemical or adding inert gas might prevent gasified coal gas from exploding, which provided a basis for safety and feasibility of underground coal gasification.

关 键 词：煤炭地下气化 煤气 爆炸极限 最大允许氧含量 

分 类 号：TQ620[化学工程—精细化工]