Promotion of methane storage in tetra-n-butylammonium sulfate semi-clathrate hydrate by inducing pure methane hydrate

doi:10.1016/j.cej.2020.127988

GIEC OpenIR

	Promotion of methane storage in tetra-n-butylammonium sulfate semi-clathrate hydrate by inducing pure methane hydrate
	Xu, Jie1,2 ; Chen, Qinglin 1; Du, Jianwei 1,2
	2021-08-01
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	417 页码:15
通讯作者	Du, Jianwei(dujianwei@mail.sysu.edu)
摘要	Inducing pure methane hydrate from double methane semi-clathrate hydrate is a promising method to enhance methane storage in hydrate. In this work, comprehensive investigation on methane uptake contributed from induced methane hydrate was first conducted. A new halogen-free semi-clathrate hydrate former - tetra-n-butylammonium sulfate was chosen to form double semi-clathrate hydrate for methane storage. Classical isochoric method and thermal volumetric analysis along with pressure-temperature trace method were employed for this study. Experiments were carried out to measure methane uptake and phase equilibrium at wide mass fractions and pressures ranging from 17.0 to 50.0 wt% and 3.0 to 13.0 MPa, respectively. With induced methane hydrate, the maximum obtained methane uptake reached 127.6% of the theoretical methane capacity in double (TBA)(2)SO4 + CH4 semi-clathrate hydrate. Key parameters such as induction time, formation rate and dissociation enthalpy of this double methane + tetra-n-butylammonium sulfate semi-clathrate hydrate were also obtained. Formation rate curve with clear inflection can be divided into two parts corresponding to induced pure methane hydrate and double methane semi-clathrate hydrate distinctly. The conversion rate of free water into pure methane hydrate was first determined between 31.30% and 47.77% in this work. Accordingly, the mechanism of induced pure methane hydrate was proposed that the occupancy of methane in double methane semi-clathrate hydrate controls the extent of induced pure methane hydrate. The results in this study indicate tetra-n-butylammonium sulfate has the potential to deal with the challenge for methane storage in hydrate.
关键词	Gas hydrate Methane storage Semi-clathrate hydrate Induced pure methane hydrate Tetra-n-butylammonium sulfate Halogen-free semi-clathrate hydrate former
DOI	10.1016/j.cej.2020.127988
关键词[WOS]	BUTYL AMMONIUM BROMIDE ; PHASE-EQUILIBRIUM CONDITIONS ; GUEST GAS ENCLATHRATION ; SODIUM DODECYL-SULFATE ; CARBON-DIOXIDE ; NATURAL-GAS ; SEMICLATHRATE HYDRATE ; FORMATION KINETICS ; AQUEOUS-SOLUTION ; CHLORIDE TBAC
收录类别	SCI
语种	英语
资助项目	Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences[Y907kk1001] ; Special Funds for the Cultivation of Guangdong College Students' Scientific and Technological Innovation[pdjh2019b0012] ; National Natural Science Foundation of China[51776228]
WOS研究方向	Engineering
项目资助者	Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences ; Special Funds for the Cultivation of Guangdong College Students' Scientific and Technological Innovation ; National Natural Science Foundation of China
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000653229500054
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：6[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/344007/33329
专题	中国科学院广州能源研究所
通讯作者	Du, Jianwei
作者单位	1.Sun Yat Sen Univ, Sch Mat Sci & Engn, Guangdong Engn Ctr Petrochem Energy Conservat, 135 Xingang West Rd, Guangzhou 510275, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, 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	Xu, Jie,Chen, Qinglin,Du, Jianwei. Promotion of methane storage in tetra-n-butylammonium sulfate semi-clathrate hydrate by inducing pure methane hydrate[J]. CHEMICAL ENGINEERING JOURNAL,2021,417:15.
APA	Xu, Jie,Chen, Qinglin,&Du, Jianwei.(2021).Promotion of methane storage in tetra-n-butylammonium sulfate semi-clathrate hydrate by inducing pure methane hydrate.CHEMICAL ENGINEERING JOURNAL,417,15.
MLA	Xu, Jie,et al."Promotion of methane storage in tetra-n-butylammonium sulfate semi-clathrate hydrate by inducing pure methane hydrate".CHEMICAL ENGINEERING JOURNAL 417(2021):15.