Kinetics, compositions and structures of carbon dioxide/hydrogen hydrate formation in the presence of cyclopentane

doi:10.1016/j.apenergy.2020.114808

GIEC OpenIR

	Kinetics, compositions and structures of carbon dioxide/hydrogen hydrate formation in the presence of cyclopentane
	Yu, Yi-Song 1,2,3,4,5,7; Zhang, Qing-Zong 1,2,3,6; Li, Xiao-Sen1,2,3 ; Chen, Chang 1,2,3; Zhou, Shi-Dong 6
	2020-05-01
发表期刊	APPLIED ENERGY
ISSN	0306-2619
卷号	265 页码:9
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn)
摘要	Cyclopentane(CP) as an efficient promoter has not been evaluated for capturing CO2 form fuel gas via forming hydrate. The work systematically studies the kinetics and CO2 recovery of gas (40.0 mol% CO2 + 60.0 mol% H-2) hydrate formation in the presence of CP at 276.15 K and 6.0 MPa. Meanwhile, X-ray diffraction and Raman spectrum were adopted to determine the hydrate structure and composition. The results showed that there were two steps for hydrate formation in the system, Step 1: Pure CP hydrates formation. Step 2: Gas molecules trapped in hydrate cages to form CP/gas (CO2, H-2) mixed hydrates. Besides, the CO2 recovery of up to 98.8% was obtained at gas-liquid ratio of 5/6 and CP volume concentration of 23.4 vol%, indicating that almost all CO2 could be removed from fuel gas by one-stage of hydrate formation. In addition, not only CP/gas (CO2, H-2) mixed hydrates (sII) but also pure CO2 hydrates (sI) are observed in the system. Strikingly, the work confirms that some of H-2 molecules are also trapped in the hydrate phase, and its amount increased as the CP volume concentration increase. From the view point of cost-effective and H-2-saving, the gas-liquid ratio of 5/6, CP volume concentration of 3.0 vol% and precooling liquid are the optimum conditions for HBGS.
关键词	Cyclopentane Hydrate CO2 recovery Raman spectra X-ray Gas-liquid ratio
DOI	10.1016/j.apenergy.2020.114808
关键词[WOS]	CO2 CAPTURE ; PHASE-EQUILIBRIA ; DIOXIDE CAPTURE ; GAS ; HYDROGEN ; TETRAHYDROFURAN ; SEPARATION ; MIXTURES ; CO2/H-2 ; TECHNOLOGIES
收录类别	SCI
语种	英语
资助项目	Key Program of National Natural Science Foundation of China[51736009] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-SLH041] ; Natural Science Foundation of Guangdong Province, China[2019A1515012086] ; Program of Key Laboratory of Gas Hydrate, CAS[y907jc1001] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YZ201619] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-JSC033] ; International Postdoctoral Exchange Fellowship Program[20190073] ; National Natural Science Foundation of China[51974037]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	Key Program of National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Natural Science Foundation of Guangdong Province, China ; Program of Key Laboratory of Gas Hydrate, CAS ; Special Project for Marine Economy Development 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 ; International Postdoctoral Exchange Fellowship Program ; National Natural Science Foundation of China
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000522639500028
出版者	ELSEVIER SCI LTD
引用统计	被引频次：33[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/344007/26963
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, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Colorado Sch Mines, Chem & Biol Engn Dept, Golden, CO 80401 USA 6.Changzhou Univ, Jiangsu Key Lab Oil & Gas Storage & Transportat T, Changzhou 213016, Jiangsu, Peoples R China 7.CAS Guangzhou Chem Co, Guangzhou 510650, 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	Yu, Yi-Song,Zhang, Qing-Zong,Li, Xiao-Sen,et al. Kinetics, compositions and structures of carbon dioxide/hydrogen hydrate formation in the presence of cyclopentane[J]. APPLIED ENERGY,2020,265:9.
APA	Yu, Yi-Song,Zhang, Qing-Zong,Li, Xiao-Sen,Chen, Chang,&Zhou, Shi-Dong.(2020).Kinetics, compositions and structures of carbon dioxide/hydrogen hydrate formation in the presence of cyclopentane.APPLIED ENERGY,265,9.
MLA	Yu, Yi-Song,et al."Kinetics, compositions and structures of carbon dioxide/hydrogen hydrate formation in the presence of cyclopentane".APPLIED ENERGY 265(2020):9.