摘要:

介绍了天然气液化前的预处理工艺，对比分析了煤制天然气与常规管道天然气的气质特点，提出了三种煤制天然气液化预处理工艺方案，对每种方案进行了工艺分析，从技术可靠性、运行操作、消耗和投资等方面进行了比选，结果显示，此吸附法方案更优。

关键词: ​煤制天然气 / 液化 / 预处理 / 脱碳 / 吸附

Abstract:

This paper introduces the pretreatment process prior to natural gas liquefaction,comparatively analyzes the properties of natural gas generated from coal and from conventional pipelines,and puts forward three kinds of process schemes for coal to natural gas liquefaction pretreatment; each scheme is analyzed process-wise,and comparison is made from such aspects as technical reliability, operation, consumption andinvestment. The results show that the adsorption scheme is the best.

Keywords: ​coal to natural gas / liquefaction / pretreatment / decarburization / adsorption