Thermodynamic stability and guest distribution of CHb>4b>/Nb>2b>/COb>2b> mixed hydrates for methane hydrate production using Nb>2b>/COb>2b> injection

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• 作者：Dongwook Lim^a ; ¹ ; Hyeyoon Ro^a ; ¹ ; Yongwon Seo^b ; ^{ywseo@unist.ac.kr} ; Young-ju Seo^a ; ^c ; Joo Yong Lee^c ; Se-Joon Kim^c ; Jaehyoung Lee^c ; Huen Lee^a ; ^{hlee@kaist.ac.kr}
• 关键词：Gas hydrate ; Phase equilibria ; Replacement ; Flue gas
• 刊名：The Journal of Chemical Thermodynamics
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：106
• 期：Complete
• 页码：16-21
• 全文大小：874 K
• 卷排序：106

文摘

We examine the thermodynamic stability and guest distribution of CH4/N2/CO2 mixed hydrates. Phase equilibria of the CH4/N2/CO2 mixed hydrates were measured to determine the thermodynamic stability. The N2/CO2 ratio of the hydrate phase is almost constant despite the enrichment of CO2 in the hydrate phase. 13C NMR results indicate the preferential occupation of N2 and CO2 in the small and large cages of sI hydrates, respectively.