Molecular insight into carbon dioxide hydrate formation from saline solution

doi:10.1039/d1ra04015d

GIEC OpenIR

	Molecular insight into carbon dioxide hydrate formation from saline solution
	Liu, Chanjuan 1,2,3,4; Zhou, Xuebing 1,2,3,4; Liang, Deqing1,2,3,4
	2021-09-24
发表期刊	RSC ADVANCES
卷号	11 期号:50 页码:31583-31589
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
摘要	Carbon dioxide hydrate has been intensively investigated in recent years because of its potential use as gas and heat storage materials. To understand the hydrate formation mechanisms, the crystallization of CO2 hydrate from NaCl solutions was simulated at a molecular level. The influence of temperature, pressure, salt concentration and CO2 concentration on CO2 hydrate formation was evaluated. Results showed that the amount of the newly formed hydrate cages pressure went through a fast linear growth period followed by a relatively stable period. Pressure had little effect on CO2 hydrate formation and temperature had a significant influence. The linear growth rate was greatly reduced as the temperature dropped from 255 to 235 K. The salt ion pairs could inhibit CO2 hydrate formation, suggesting that we should choose the lower salinity areas if we want to storage CO2 as gas hydrates in the seabed sediments. The observations in this study can provide theoretical support for the micro mechanism of hydrate formation, and provide a theoretical reference for the technology of hydrate based CO2 storage.
DOI	10.1039/d1ra04015d
关键词[WOS]	METHANE HYDRATE ; GAS ; REPLACEMENT ; RECOVERY ; CO2 ; SIMULATIONS ; CH4 ; SEQUESTRATION ; DISSOCIATION ; VERIFICATION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41603062] ; National Natural Science Foundation of China[51706230]
WOS研究方向	Chemistry
项目资助者	National Natural Science Foundation of China
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000716048700001
出版者	ROYAL SOC CHEMISTRY
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/344007/35160
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 Ctr Gas Hydrate Res, 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.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China
推荐引用方式 GB/T 7714	Liu, Chanjuan,Zhou, Xuebing,Liang, Deqing. Molecular insight into carbon dioxide hydrate formation from saline solution[J]. RSC ADVANCES,2021,11(50):31583-31589.
APA	Liu, Chanjuan,Zhou, Xuebing,&Liang, Deqing.(2021).Molecular insight into carbon dioxide hydrate formation from saline solution.RSC ADVANCES,11(50),31583-31589.
MLA	Liu, Chanjuan,et al."Molecular insight into carbon dioxide hydrate formation from saline solution".RSC ADVANCES 11.50(2021):31583-31589.