气候变化领域集成服务门户(CCPortal): Promoted Disappearance of CO2 Hydrate Self-Preservation Effect by Surfactant SDS

CCPortal

DOI	10.3390/en14133909
	Promoted Disappearance of CO2 Hydrate Self-Preservation Effect by Surfactant SDS
	Chen, Xueping; Li, Shuaijun; Zhang, Peng; Chen, Wenting; Wu, Qingbai; Zhan, Jing; Wang, Yingmei
发表日期	2021
EISSN	1996-1073
卷号	14 期号:13
英文摘要	The capture, storage and utilization of CO2 through hydrate-related technology is a promising approach to addressing the global warming issue. Dissociation is required after the transportation of CO2 gas in the form of a self-preserving hydrate. In order to investigate the dissociation behaviors as the self-preservation effect is removed, CO2 hydrates were frozen, and then the self-preservation effect was removed through uniform heating. An evident dependence of hydrate dissociation duration on the initial dissociation rates after losing the preservation effect was observed. The results in the silica gel powder and sodium dodecyl sulphate solution showed significant reductions in the initial dissociation temperatures and a slight decrease in the initial dissociation rates when compared with those of pure water. The reductions in the former were 2.88, 2.89, and 5.73 degrees C in silica gel, sodium dodecyl sulphate, and a combination of the two, respectively, while the reductions in the latter were 0.12, 0.12, and 0.16 mmol/min, respectively. As the results are inconsistent with the conventional mechanism elucidating a self-preservation effect, the ice shell theory was hence further supplemented by introducing innovative contribution factors-nonenclathrated liquid water and gas molecules dissolved inside. These findings are expected to provide references for CO2 gas transportation and usage of the self-preservation effect.
英文关键词	self-preservation effect; CO2 hydrate; SDS; diffusivity; nonenclathrated liquid water
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS关键词	METHANE HYDRATE ; CARBON-DIOXIDE ; GAS HYDRATE ; FORMATION KINETICS ; FLUE-GAS ; CH4 ; WATER ; TEMPERATURE ; ADDITIVES ; TRANSPORT
WOS记录号	WOS:000671190200001
来源期刊	ENERGIES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240276
作者单位	[Chen, Xueping; Li, Shuaijun; Zhang, Peng; Chen, Wenting; Wu, Qingbai; Zhan, Jing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Chen, Xueping; Li, Shuaijun; Chen, Wenting] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Yingmei] Lanzhou Univ Technol, Western China Energy & Environm Res Ctr, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xueping,Li, Shuaijun,Zhang, Peng,et al. Promoted Disappearance of CO2 Hydrate Self-Preservation Effect by Surfactant SDS[J]. 中国科学院西北生态环境资源研究院,2021,14(13).
APA	Chen, Xueping.,Li, Shuaijun.,Zhang, Peng.,Chen, Wenting.,Wu, Qingbai.,...&Wang, Yingmei.(2021).Promoted Disappearance of CO2 Hydrate Self-Preservation Effect by Surfactant SDS.ENERGIES,14(13).
MLA	Chen, Xueping,et al."Promoted Disappearance of CO2 Hydrate Self-Preservation Effect by Surfactant SDS".ENERGIES 14.13(2021).