Formation kinetics and microscopic characteristics of synthesized ternary gas mixture hydrates in TBAB aqueous solutions

doi:10.1016/j.energy.2022.123327

GIEC OpenIR

	Formation kinetics and microscopic characteristics of synthesized ternary gas mixture hydrates in TBAB aqueous solutions
	Zang, Xiaoya1,2,3,4 ; Wang, Jing 1,2,3,5; He, Yong 1,2,3,4; Zhou, Xuebing 1,2,3,4; Liang, Deqing1,2,3,4
	2022-04-15
发表期刊	ENERGY
ISSN	0360-5442
卷号	245 页码:9
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
摘要	Tetrabutylammonium bromide (TBAB) is a typical thermodynamic additive that can enhance the hydrate equilibrium temperature. Additionally, semi-clathrate hydrates formed from TBAB solutions exhibit reasonable CO2 adsorption performance. In this study, TBAB hydrates were synthesized to determine their carbon capture capacity from a ternary gas mixture of CH4/CO2/N-2 (0.5/0.4/0.1). We measured the effect of temperature, pressure, and TBAB mass fractions (0.05-0.2) on the formation of gas hydrates, which were analyzed using Raman spectroscopy, powder X-ray diffraction (PXRD), and cryo-scanning electron microscopy (Cryo-SEM). With a 0.05 TBAB aqueous solution, the maximum recovery factor of CH4 was 1.646 at 290.1 K and 7.0 MPa, whereas the maximum CO2 split ratio was 0.454 at a pressure of 7.0 MPa and temperature of 280.1 K. Furthermore, the cryo-SEM images revealed that the addition of TBAB significantly increased the specific surface area of the hydrate crystals compared with the pure water system. PXRD and Raman spectroscopy showed that the hydrate structure transformed from a SI to a semi-clathrate hydrate. The hydrate samples formed from the 0.05 TBAB solution were found to be type A and B, leading to greater gas consumption. These results are expected to provide support for hydrate gas separation technology. (C) 2022 Elsevier Ltd. All rights reserved.
关键词	Hydrate Gas mixture Tetrabutylammonium bromide (TBAB) Separation
DOI	10.1016/j.energy.2022.123327
关键词[WOS]	N-BUTYLAMMONIUM BROMIDE ; CARBON-DIOXIDE ; SEMICLATHRATE HYDRATE ; PHASE-EQUILIBRIUM ; CO2 CAPTURE ; SEPARATION ; METHANE ; MORPHOLOGY ; HYDROGEN ; NITROGEN
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51676197] ; National Natural Science Foundation of China[51876211] ; Guangdong Basic and Applied Basic Research Fundation[2021A1515010632] ; Guangdong Basic and Applied Basic Research Fundation[2020A1515010374] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Youth Innovation Promotion Association CAS
WOS研究方向	Thermodynamics ; Energy & Fuels
项目资助者	National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Fundation ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; Youth Innovation Promotion Association CAS
WOS类目	Thermodynamics ; Energy & Fuels
WOS记录号	WOS:000792598600013
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/36501
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.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Zang, Xiaoya,Wang, Jing,He, Yong,et al. Formation kinetics and microscopic characteristics of synthesized ternary gas mixture hydrates in TBAB aqueous solutions[J]. ENERGY,2022,245:9.
APA	Zang, Xiaoya,Wang, Jing,He, Yong,Zhou, Xuebing,&Liang, Deqing.(2022).Formation kinetics and microscopic characteristics of synthesized ternary gas mixture hydrates in TBAB aqueous solutions.ENERGY,245,9.
MLA	Zang, Xiaoya,et al."Formation kinetics and microscopic characteristics of synthesized ternary gas mixture hydrates in TBAB aqueous solutions".ENERGY 245(2022):9.