新型选择性气体净化溶剂CT8—5的工业应用

以甲基二乙醇胺（ＭＤＥＡ）为母液添加适量符合工艺要求的助剂而制成的ＣＴ８－５新型选择性脱硫溶剂，在齐鲁石油化工公司胜利炼油厂硫磺回收尾气处理装置进行取代ＭＤＥＡ净化脱硫剂的工业应用试验。结果表明，在常压下操作，ＣＴ８－５的Ｈ２Ｓ脱除率可达９９．２％～９９．９％，ＣＯ２的脱除率小于１０％，在原料气含Ｈ２Ｓ１％～２％时，所产酸性气中Ｈ２Ｓ含量可达６６％左右，ＣＴ８－５水溶液再生效果比其它烷醇胺高，抗泡性能也好，适用于原料气中存在ＣＯ２气体、Ｈ２Ｓ含量较低、对净化气中Ｈ２Ｓ含量要求较高的情况

COMMERCIAL APPLICATION OF A SELECTIVE DESULFURIZATION SOLVENT CT8 5 FOR GAS PURIFICATION

The commercial trial of a selective desulfurization solvent CT8 5 was carried out in a tail gas treating unit of sulfur recovery at Qilu Petrochemical Company. CT8 5 was a modified MDEA solvent with a proper amount of additive. The result showed that the removal rates of H 2S and CO 2 were 99.2 % to 99.9% and less than 10% respectively under atmospheric pressure, and the H 2S content in the acidic gas was about 60% when the H 2S content was 1% to 2% in feed gas. CT8 5 solvent exhibited good desulfurization selectivity and anti foaming ability as well as easy regeneration.