天然气中甲烷及非烃组分的汽液相平衡研究进展  

Research progress of vapor-liquid equilibrium for methane-nonhydrocarbon system in natural gas

作　　者：管文洁[1] 方凌云[1] 王学会[1] 韩晓红[1] 陈光明[1] 

机构地区：[1]浙江大学制冷与低温研究所,杭州310027

出　　处：《低温工程》2014年第3期47-53,共7页Cryogenics

基　　金：航天低温推进剂技术国家重点实验室基金课题(SKLTSCP1205)

摘　　要：液化天然气中的非烃组分会在液化、运输过程中对其造成不同程度的影响,获得基础的相平衡数据对于优化液化流程十分必要。在介绍含不同非烃组分天然气分布基础上,较详尽地论述了CO2-CH4,H2-CH4,He-CH4体系以及部分非烃组分之间的汽液相平衡实验研究进展及部分理论研究。论述结果可知,很多早期的汽液相平衡实验数据精度有限,实验数据不广泛,尤其是在较低温度区域内的汽液相平衡数据点非常少,为未来的工作提出了研究方向。Nonhydrocarbon compositions in liquefied natural gas have the effect on the natural gas liquefaction and transportation to some extend. Therefore,it is necessary for the optimization of liquefaction progress to obtain the basic phase equilibrium data. Based on the distribution of the natural gas containing different nonhydrocarbon components,the experimental and theoretical research progress of CO2-CH4,H2-CH4,He-CH4were reviewed in details. The reviewed results showed that for some specified reasons,the accuracy of many vapor liquid equilibrium data was limited in the earlier time,and the experimental data was not enough,especially in low temperature range,and the further research direction will be considered by the work.

关 键 词：汽液相平衡 天然气 非烃组分 研究进展 

分 类 号：TB66[一般工业技术—制冷工程] TE64[石油与天然气工程—油气加工工程]