基于二氧化碳返炉的煤制天然气联产甲醇和乙二醇工艺研究  

Study on coal to synthetic natural gas with co-production of methanol and ethylene glycol based on carbon dioxide back to gasifier

作　　者：刘阳 吴秀章[4] 刘永健 王波 LIU Yang;WU Xiu-zhang;LIU Yong-jian;WANG Bo(Liaoning Datang International Fuxin Coal to Natural Gas Co.,Ltd.,Fuxin 123000,China;South China University of Technology,Guangzhou 510641,China;Zhongxin Energy&Chemical Co.,Ltd.,Beijing 100084,China;China Datang Corporation Ltd.,Beijing 100032,China)

机构地区：[1]辽宁大唐国际阜新煤制天然气有限责任公司,辽宁阜新123000 [2]华南理工大学,广东广州510641 [3]中新能化科技有限公司,北京100084 [4]中国大唐集团有限公司,北京100032

出　　处：《现代化工》2021年第7期214-218,共5页Modern Chemical Industry

基　　金：国家自然科学基金项目(21736004)。

摘　　要：针对某13亿m^(3)/a典型煤制天然气联产甲醇和乙二醇工艺系统进行分析,挖掘该工艺存在的问题以及优化空间。在此基础上,提出了基于二氧化碳返炉的煤制天然气联产甲醇和乙二醇工艺,并利用模拟计算方法得到工艺的物料平衡和能量平衡数据。经分析,相比于典型煤制天然气联产甲醇和乙二醇工艺,基于二氧化碳返炉的煤制天然气联产甲醇和乙二醇工艺年可提升收益1.99亿元左右,表明将二氧化碳返炉技术集成于煤制天然气联产甲醇和乙二醇工艺更具有经济优势。A typical 1.3 billion cubic meter per year coal to synthetic natural gas with methanol and ethylene glycol co-production process is analyzed by material flow and energy flow analysis methods to find out the existing problems and optimize the process space.On this foundation,a coal to synthetic natural gas,methanol and ethylene glycol co-production process based on carbon dioxide back to the gasifier is proposed.Material balance and energy balance data of the process are obtained by using the simulation calculation method.It is found through analysis that the co-production process based on carbon dioxide back to the gasifier can increase annual income by about RMB199 million compared with typical coproduction process,showing that this process has more economic advantages by means of integrating carbon dioxide back to gasifier technology into the coal to synthetic natural gas,methanol and ethylene glycol co-production process.

关 键 词：煤制天然气 二氧化碳返炉 联产过程 物质流分析 甲醇 乙二醇 

分 类 号：TD83[矿业工程—煤矿开采]