| 引用本文: | 王秀林,陈杰,宋波,周婵,陈光进,张凌伟. 水合物法分离CH4-C2H6-H2O体系的相平衡研究[J]. 石油与天然气化工, 2011, 40(1): 15-17,36,7. |
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| 摘要: |
| 本文进行了水合物法分离CH4-C2H6体系的气体-水合物相平衡实验研究,考察了水合物促进剂四氢呋喃(THF)和十二烷基硫酸钠(SDS)对水合物法分离CH4-C2H6体系的影响,通过改变原料气的组成,做出了水合物法分离CH4-C2H6体系的T-P-x-y曲线图。研究发现,在纯水体系中采用水合物法分离CH4-C2H6混合气体,分离效果不明显;当在水溶液中加入水合物促进剂四氢呋喃(THF)和十二烷基硫酸钠(SDS)后,水合物法可以很好地实现CH4-C2H6体系的分离,解决了采用传统深冷分离方法分离CH4-C2H6体系时,由于CH4、C2H6沸点较低而造成能耗较高的问题,开发出了一种新型分离CH4-C2H6体系的方法,所得结果对水合物法分离(CH4-C2H6)技术的开发与应用具有重要的指导意义。 |
| 关键词: 水合物 相平衡 甲烷 乙烷 |
| DOI： |
| 分类号:TQ013.1 |
| 基金项目: |
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| Study on the Phase Equilibrium of Hydrate Separation Processes for Methane-Ethane-H2O Systems |
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Wang Xiulin, Chen Jie, Song Bo
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Research & Development Center CNOOC Gas and Power Group,Beijing 100029
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| Abstract: |
| Hydrate phase diagrams and their effect on separation processes are shown for binary close-boiling pairof ethane +methane. Normally,vapor-liquid hydrocarbonse paration processes are used for such compounds. However,close-boiling binaries require so many equilibrium stages that cost dictates investigation of other methods. Here we show the advantage of idealized,equilibrium,separation processes for the binary using hydrate-liquid hydrocarbon-aqueous separations. |
| Key words: hydrate phase equilibrium ethane methane |
