两段式干煤粉加压气化技术在煤制天然气中的应用 -

介绍了国内天然气供求现状以及煤制天然气用途。对煤制天然气中煤气化、CO变换、合成气净化、甲烷化、压缩和干燥等关键工艺流程进行了阐述。详细介绍了两段式干煤粉加压气化技术和激冷、废锅流程设备特点,以及这些技术和设备在煤制天然气方面的应用。模拟计算了采用该技术的年产10亿m3煤制天然气项目的主要装置和相关工艺参数和结果,同时对项目技术经济效益进行了简要分析。最后总结出煤制天然气中气化技术的选择原则,并对煤制天然气的发展提出建议。 Analyze China's current natural gas reserves and utilization of synthetic natural gas(SNG).Introduce the critical technological processes in SNG preparation,which are coal gasification,carbon monoxide conversion,synthetic gas purification,methanation,compression and drying.The characteristics of two-stage dry pressurized gasification technology with quench and waste heat boiler process are introduced in detail as well as its application in SNG preparation.The related technological parameters and effect of production of billion standard cubic per year SNG based on the gasification technology are simulated.The project is analyzed from the technological and economic perspectives.Finally,gasification technology principles applied to SNG process are summarized.Meanwhile,provide suggestions for the development of SNG