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1 前言 聚乙二醇二甲醚(国外称Selexol)是一种物理吸收溶剂,广泛用于天然气、燃料气、合成气等混合气体中H_2S、CO_2、COS、烃、硫醇等的吸收。目前全世界已有48个工业装置使用Selexol净化工艺,处理总气量约85×10_6Nm~3/d。采用Selexol净化工艺是“低能耗”
1 Introduction Polyethylene glycol dimethyl ether (Ablexive Selexol) is a physical absorption solvent, widely used in natural gas, fuel gas, syngas and other mixed gas H_2S, CO_2, COS, hydrocarbons, thiols and other absorption. At present, 48 industrial installations in the world use Selexol purification process, and the total gas consumption is about 85 × 10_6Nm ~ 3 / d. Selexol purification process is “low energy consumption”