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Microscopic study on the key process and influence of efficient synthesis of natural gas hydrate by in situ Raman analysis of water microstructure in different systems with temperature drop

文献类型：期刊论文

作者Zhang, Wei1,2,3,4; Xu, Chun-Gang1,3,4,5; Li, Xiao-Sen1,3,4,5; Huang, Zhuo-Yi1,3,4,5; Chen, Zhao-Yang1,3,4,5
刊名JOURNAL OF ENERGY CHEMISTRY
出版日期2023-07-01
卷号82页码:317-333
关键词Hydrate Conversion Hydrogen bonded water Promoter Micro mechanism
ISSN号2095-4956
DOI10.1016/j.jechem.2023.03.029
通讯作者Xu, Chun-Gang(xucg@ms.giec.ac.cn) ; Li, Xiao-Sen(lixs@ms.giec.ac.cn)
英文摘要Gas hydrate technology has considerable potential in many fields. However, due to the lack of understanding of the micro mechanism of hydrate formation, it has not been commercially applied so far. Gas hydrate formation is essentially a gas-liquid-solid phase transition of water and gas molecules at a certain temperature and pressure. The key to the hydrate formation is the transformation of water molecule from disordered arrangement to ordered arrangement. In this process, weakly hydrogen bonded water will be correspondingly converted to strongly hydrogen bonded water. Through in situ Raman analysis and experiments, the position change of the corresponding peaks of the strongly hydrogen bonded water and the weakly hydrogen bonded water was compared in this work, and the key microscopic process and influence of gas hydrate formation in different systems were comprehensively studied and summarized. It is found that, with the decrease of temperature, the OAH of the weakly hydrogen bonded water remains unchanged when the temperature drops to a certain value, which is the key to the transformation of water into cage hydrate rather than ice. The conversion from the weakly hydrogen bonded water to the strongly hydrogen bonded water is closely related to the gas-liquid interface force, the hydrophilicity/hydrophobicity of the promoter, the ionization degree of liquid, and the electrostatic field of the system. Among the four most common promoters, tetrahydrofuran (THF) has the highest efficiency in promoting methane (CH4) hydrate formation. Therefore, this study provides a scientific direction and basis for the development of high efficient hydrate formation promoters, which can effectively weaken the hydrogen bond of weakly hydrogen bonded water and promote the conversion of weakly hydrogen bonded water to strongly hydrogen bonded water.(c) 2023 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
WOS关键词HYDROGEN-BONDING STRUCTURE ; CARBON-DIOXIDE ; MOLECULAR-STRUCTURE ; EQUILIBRIUM DATA ; ELECTRIC-FIELD ; BONDED WATER ; METHANE ; MICROMECHANISM ; SURFACTANT ; NUCLEATION
资助项目Key Program of National Natural Science Foundation of China[51736009] ; Natural Science Foundation of Guangdong Province, China[2023A1515012061] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2022D043] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2019B030302004] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2020B030103003] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YZ201619] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJSSW-JSC033]
WOS研究方向Chemistry ; Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000990252800001
出版者ELSEVIER
资助机构Key Program of National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province, China ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; Special Project for Marine Economy Development of Guangdong Province ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences
源URL[http://ir.giec.ac.cn/handle/344007/38934]  
专题中国科学院广州能源研究所
通讯作者Xu, Chun-Gang; Li, Xiao-Sen
作者单位1.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Sci & Technol China, Sch Engn Sci, Hefei 230023, Anhui, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
4.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
5.Univ Sci & Technol China, Sch Energy Sci & Engn, Hefei 230023, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Wei,Xu, Chun-Gang,Li, Xiao-Sen,et al. Microscopic study on the key process and influence of efficient synthesis of natural gas hydrate by in situ Raman analysis of water microstructure in different systems with temperature drop[J]. JOURNAL OF ENERGY CHEMISTRY,2023,82:317-333.
APA Zhang, Wei,Xu, Chun-Gang,Li, Xiao-Sen,Huang, Zhuo-Yi,&Chen, Zhao-Yang.(2023).Microscopic study on the key process and influence of efficient synthesis of natural gas hydrate by in situ Raman analysis of water microstructure in different systems with temperature drop.JOURNAL OF ENERGY CHEMISTRY,82,317-333.
MLA Zhang, Wei,et al."Microscopic study on the key process and influence of efficient synthesis of natural gas hydrate by in situ Raman analysis of water microstructure in different systems with temperature drop".JOURNAL OF ENERGY CHEMISTRY 82(2023):317-333.

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来源：广州能源研究所

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