Phase Equilibria of the Synthesized Ternary CH4/CO2/N-2 Mixed-Gas Hydrates in Tetrabutylammonium Bromide Aqueous Solutions at Different Concentrations

doi:10.1021/acs.jced.0c00933

	Phase Equilibria of the Synthesized Ternary CH4/CO2/N-2 Mixed-Gas Hydrates in Tetrabutylammonium Bromide Aqueous Solutions at Different Concentrations
	Zang, Xiaoya 2,3,4,5; Wang, Jing 1,2,3,4; Zhou, Xuebing 2,3,4,5; Wan, Lihua 2,3,4,5; Liang, Deqing 2,3,4,5
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2021-03-11
卷号	66 期号:3 页码:1290-1295
ISSN号	0021-9568
DOI	10.1021/acs.jced.0c00933
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
英文摘要	Hydrate-based gas separation (HBGS) technology can effectively separate CH4 and CO2 in multicomponent gases. To provide the necessary basic data for the HBGS technology, the hydrate phase equilibrium conditions of a ternary gas mixture (CH4/CO2/N-2 = 0.5/0.4/0.1) were determined and compared in tetrabutylammonium bromide (TBAB) aqueous solutions with different mass fractions (0.05, 0.1, 0.2, and 0.4). The results indicated that all four concentrations of TBAB aqueous solution could shift the hydrate phase equilibrium conditions of the ternary gas mixture to higher temperatures and lower pressures; this influence was enhanced with higher TBAB concentrations. When the TBAB mass fraction was 0.4, under the same phase equilibrium pressure conditions, the phase equilibrium temperature increased by a range of approximately 9-14 K compared with that of a pure water system. Meanwhile, TBAB had a greater impact on the phase equilibrium conditions of hydrates containing larger proportions of CO2 and CH4 gas and a greater impact on the phase equilibrium conditions of CO2 and CH4 gas hydrates than on N-2 hydrate.
资助项目	National Natural Science Foundation of China[51676197] ; National Key Research and Development Plan of China[2017YFC0307305] ; Guangzhou Science and Technology Project[201804010411] ; Guangdong Special Support Program-Local Innovation and Entrepreneurship Team Project[2019BT02L278] ; Guangdong MEPP Fund[GDME-2018D002] ; Guangdong MEPP Fund[GDOE[2019]A39] ; Guangdong MEPP Fund[GDOE[2019]A54] ; Youth Innovation Promotion Association CAS
WOS研究方向	Thermodynamics ; Chemistry ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000629163700009
资助机构	National Natural Science Foundation of China ; National Key Research and Development Plan of China ; Guangzhou Science and Technology Project ; Guangdong Special Support Program-Local Innovation and Entrepreneurship Team Project ; Guangdong MEPP Fund ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32832]
专题	中国科学院广州能源研究所
通讯作者	Liang, Deqing
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China
推荐引用方式 GB/T 7714	Zang, Xiaoya,Wang, Jing,Zhou, Xuebing,et al. Phase Equilibria of the Synthesized Ternary CH4/CO2/N-2 Mixed-Gas Hydrates in Tetrabutylammonium Bromide Aqueous Solutions at Different Concentrations[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2021,66(3):1290-1295.
APA	Zang, Xiaoya,Wang, Jing,Zhou, Xuebing,Wan, Lihua,&Liang, Deqing.(2021).Phase Equilibria of the Synthesized Ternary CH4/CO2/N-2 Mixed-Gas Hydrates in Tetrabutylammonium Bromide Aqueous Solutions at Different Concentrations.JOURNAL OF CHEMICAL AND ENGINEERING DATA,66(3),1290-1295.
MLA	Zang, Xiaoya,et al."Phase Equilibria of the Synthesized Ternary CH4/CO2/N-2 Mixed-Gas Hydrates in Tetrabutylammonium Bromide Aqueous Solutions at Different Concentrations".JOURNAL OF CHEMICAL AND ENGINEERING DATA 66.3(2021):1290-1295.