我国天然气净化和液化(LNG)方法以及应用前景探讨

STUDY ON THE METHODS OF PURIFICATION, LIQUEFACTION AND PROSPECTIVE APPLICATION OF NATURAL GAS IN CHINA

探讨了我国天然气采用乙醇胺脱硫和脱 Ｃ Ｏ２ 的方法以及天然气在不同压力下的液化方案， 并对采用丙烷、乙烯、甲烷复叠制冷由４０ Ｍ Ｐａ 天然气生产 Ｌ Ｎ Ｇ的方法进行了详细描述和经济效益分析， 得出 Ｌ Ｎ Ｇ无论用于双燃料汽车或民用燃料均可获得较好的经济效益。

In this paper the method of removing H 2S and CO 2 by DEA absorption and various processes of liquefaction under different pressures are discussed.The production of LNG at 4 0 MPa by propane ethene methane cascade refrigeration is described.An analysis of the economic benefit shows that it is economically feasible to use LNG in bi fuel vehicles or as civil fuels.