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Formation of a Low-Density Liquid Phase during the Dissociation of Gas Hydrates in Confined Environments

文献类型：期刊论文

作者Wan, Lihua1,2,3,4; Zang, Xiaoya1,2,3,4; Fu, Juan2,4; Zhou, Xuebing1,2,3,4; Lu, Jingsheng1,2,3,4; Guan, Jinan1,2,3,4; Liang, Deqing1,2,3,4
刊名NANOMATERIALS
出版日期2021-03-01
卷号11期号:3页码:15
关键词nanoscale gas hydrate nanoscale pores decomposition mechanism low-density liquid water dissociation behavior
DOI10.3390/nano11030590
通讯作者Wan, Lihua(wanlh@ms.giec.ac.cn)
英文摘要The large amounts of natural gas in a dense solid phase stored in the confined environment of porous materials have become a new, potential method for storing and transporting natural gas. However, there is no experimental evidence to accurately determine the phase state of water during nanoscale gas hydrate dissociation. The results on the dissociation behavior of methane hydrates confined in a nanosilica gel and the contained water phase state during hydrate dissociation at temperatures below the ice point and under atmospheric pressure are presented. Fourier transform infrared spectroscopy (FTIR) and powder X-ray diffraction (PXRD) were used to trace the dissociation of confined methane hydrate synthesized from pore water confined inside the nanosilica gel. The characterization of the confined methane hydrate was also analyzed by PXRD. It was found that the confined methane hydrates dissociated into ultra viscous low-density liquid water (LDL) and methane gas. The results showed that the mechanism of confined methane hydrate dissociation at temperatures below the ice point depended on the phase state of water during hydrate dissociation.
资助项目National Natural Science Foundation of China (NSFC)[51576197] ; National Natural Science Foundation of China (NSFC)[52004261] ; National Natural Science Foundation of China (NSFC)[51676197] ; PetroChina Innovation Foundation[2019D-5007-0216] ; Guangdong Province Natural Science Foundation of China[2020A1515011120] ; National Key Research and Development Plan of China[2016YFC0304002] ; Guangdong Province MEDProject[GDME-2018D002]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000633952600001
出版者MDPI
资助机构National Natural Science Foundation of China (NSFC) ; PetroChina Innovation Foundation ; Guangdong Province Natural Science Foundation of China ; National Key Research and Development Plan of China ; Guangdong Province MEDProject
源URL[http://ir.giec.ac.cn/handle/344007/32882]  
专题中国科学院广州能源研究所
通讯作者Wan, Lihua
作者单位1.Chinese Acad Sci, CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Wan, Lihua,Zang, Xiaoya,Fu, Juan,et al. Formation of a Low-Density Liquid Phase during the Dissociation of Gas Hydrates in Confined Environments[J]. NANOMATERIALS,2021,11(3):15.
APA Wan, Lihua.,Zang, Xiaoya.,Fu, Juan.,Zhou, Xuebing.,Lu, Jingsheng.,...&Liang, Deqing.(2021).Formation of a Low-Density Liquid Phase during the Dissociation of Gas Hydrates in Confined Environments.NANOMATERIALS,11(3),15.
MLA Wan, Lihua,et al."Formation of a Low-Density Liquid Phase during the Dissociation of Gas Hydrates in Confined Environments".NANOMATERIALS 11.3(2021):15.

入库方式： OAI收割

来源：广州能源研究所

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