摘要
综述了甲基二乙醇胺(MDEA)法、砜胺法、LO-CAT法及CT8-5法等天然气脱硫脱碳方法的应用状况,对脱硫脱碳方法的适用范围、溶剂的变质过程、脱除效果进行了比较和分析,并展望了天然气脱硫脱碳方法未来的发展方向。通过对比分析得出,当原料气压力较高且硫含量高时,适宜采用LO-CAT法处理;若原料气中硫含量低时,应采用砜胺Ⅲ法;当原料气压力较低时,采用MDEA法和CT8-5法均适宜,但使用CT8-5法时溶剂更稳定,不易变质。若需要从原料气中选择性脱除H2S和有机硫、可适当保留CO2的工况,应选用砜胺Ⅲ法。
oleum Engineering, CNPC, Daqing Heilongjiang 163318, China） Abstract ] Advances in research of desulfurization and decarbonisation of natural gas through methyldiethanolamine（MDEA） method, sulfone amine method, LO-CAT method and CT8-5 method are summarized. Effects of the feed gas and the solvent deterioration on the desulfurization and decarbonisation are analysed. The prospects of the natural gas purification techniques are discussed. When the feed gas pressure is relatively high, LO-CAT method is suitable for treating high sulfur gas, whereas sulfone amine 111 method is more suitable for treating low sulfur gas. When the feed gas is at lower pressure, both MDEA method and CT8-5 method are usable, but the solvent of CT8-5 method is non-perishable. When you need remove H2S and organic sulfur from natural gas selectively, sulfone amine 11 method is the best choice.
出处
《石油化工》
CAS
CSCD
北大核心
2011年第5期565-570,共6页
Petrochemical Technology
基金
黑龙江省科技攻关项目GC05A521)
关键词
天然气
脱硫
脱碳
甲基二乙醇胺法
砜胺法
LO—CAT法
CT8—5法
natural gas
desulfurization
decarbonization
methyldiethanolamine method
sulfone amine method
LO-CAT method
CT8-5 method
