Microscopic Insights into the Effect of the Initial Gas-Liquid Interface on Hydrate Formation by In-Situ Raman in the System of Coalbed Methane and

doi:10.1021/acsomega.1c04907

GIEC OpenIR

	Microscopic Insights into the Effect of the Initial Gas-Liquid Interface on Hydrate Formation by In-Situ Raman in the System of Coalbed Methane and
	Cai, Jing 1,2,3,4; Lv, Tao 5; Li, Xiao-Sen1,2,3 ; Xu, Chun-Gang 1,2,3; von Solms, Nicolas 4; Liang, Xiaodong 4
	2021-12-14
发表期刊	ACS OMEGA
ISSN	2470-1343
页码	9
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn)
摘要	The serious issues of energy shortage and greenhouse gas emission have led to the development of coalbed methane (CBM) with new commercial ramifications. A hydrate-based gas separation technology is introduced to recover methane from CBM. However, the mechanism of hydrate nucleation needs to be clear for enhancing the hydrate formation rate and gas recovery efficiency. In this work, we studied, by means of in-situ Raman spectroscopy, the microscopic characterizations of hydrates forming in/around the initial gas-liquid interface in the case of CBM and tetrahydrofuran (THF). It is found that the hydrates accumulate as a film with horizontal crevices in the initial gas-liquid interface. These crevices prevent the hydrate film from hindering gas-liquid contact and limiting hydrate formation. Raman spectroscopy results illustrate that the initial gas-liquid interface shows a positive impact on water aggregation, and that the holding gas molecules stay stably with the water molecules. Nitrogen molecules encage into the cavities of THF hydrates along with methane molecules. For the interface and hydrate layer, water aggregation is evaluated by the Raman intensity ratio of hydrogen-bonded water (BW) and free water (FW) without any hydrogen bonds, abbreviated as IBW/IFW. A value of IBW/IFW higher than 0.85 can symbolize the occurrence of hydrate nucleation in the interface and help assess the hydrate formation.
DOI	10.1021/acsomega.1c04907
关键词[WOS]	CARBON-DIOXIDE ; MINE GAS ; HYDROGEN CLUSTERS ; CLATHRATE HYDRATE ; SEPARATION ; TETRAHYDROFURAN ; BED ; CYCLOPENTANE ; RECOVERY ; NITROGEN
收录类别	SCI
语种	英语
资助项目	Key Program of the National Natural Science Foundation of China[51736009] ; Key Program of the National Natural Science Foundation of China[51676190] ; Guangdong Special Support Program-Local Innovation and Entrepreneurship Team Project[2019BT02L278] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2020D044] ; Youth Innovation Promotion Association CAS[2018382] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YJKYYQ20200061] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2019B030302004] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2020B0301030003] ; Guangdong International Talent Training Program-Postdoctoral Project[2019001] ; Key Laboratory Fund of Gas Hydrate[E029020201]
WOS研究方向	Chemistry
项目资助者	Key Program of the National Natural Science Foundation of China ; Guangdong Special Support Program-Local Innovation and Entrepreneurship Team Project ; Special Project for Marine Economy Development of Guangdong Province ; Youth Innovation Promotion Association CAS ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province ; Guangdong International Talent Training Program-Postdoctoral Project ; Key Laboratory Fund of Gas Hydrate
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000732434000001
出版者	AMER CHEMICAL SOC
引用统计	被引频次：2[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/344007/35557
专题	中国科学院广州能源研究所
通讯作者	Li, Xiao-Sen
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Tech Univ Denmark, Ctr Energy Resources Engn, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark 5.Xian Shiyou Univ, Coll Petr Engn, Xian 710065, 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	Cai, Jing,Lv, Tao,Li, Xiao-Sen,et al. Microscopic Insights into the Effect of the Initial Gas-Liquid Interface on Hydrate Formation by In-Situ Raman in the System of Coalbed Methane and[J]. ACS OMEGA,2021:9.
APA	Cai, Jing,Lv, Tao,Li, Xiao-Sen,Xu, Chun-Gang,von Solms, Nicolas,&Liang, Xiaodong.(2021).Microscopic Insights into the Effect of the Initial Gas-Liquid Interface on Hydrate Formation by In-Situ Raman in the System of Coalbed Methane and.ACS OMEGA,9.
MLA	Cai, Jing,et al."Microscopic Insights into the Effect of the Initial Gas-Liquid Interface on Hydrate Formation by In-Situ Raman in the System of Coalbed Methane and".ACS OMEGA (2021):9.