The effect of additive molecular diameters on the hydrate-based CO2 capture from simulated biogas

doi:10.1016/j.fuel.2020.118370

	The effect of additive molecular diameters on the hydrate-based CO2 capture from simulated biogas
	Bai, Jing 2,3,4; Zhen, Xiang 1; Yan, Kele 5; Li, Pan 2,3,4; Fang, Shuqi 2,3,4; Chang, Chun 2,3,4
刊名	FUEL
	2020-10-15
卷号	278 页码:9
关键词	Biogas Phase equilibrium Separation efficiency Molecular diameter
ISSN号	0016-2361
DOI	10.1016/j.fuel.2020.118370
通讯作者	Li, Pan(lipanhust@163.com)
英文摘要	Lots of thermodynamics and kinetics accelerators have been used in the process of mixture gas separation by hydrate method, but there is still lack of valid screening method for seeking reliable and effective hydrate promoters. In this work, the effects of additive molecular diameter on the hydrate phase equilibrium condition and the quantity of hydrogen bond donor and accepter of additive on the separation efficiency during CO2 (40.0 mol%)/CH4 hydrate formation process were investigated. The results demonstrated that the larger molecular diameter of additive in cyclopentane (CP), tetrahydrofuran (THF) and tetrahydrothiophene (THT) systems, the phase equilibrium promotion effect of additive is more significant. And the empirical equations were proposed for predicting the phase equilibrium condition of CO2/CH4 hydrate under the impact of additive with different molecular diameters. Moreover, on account of the quantity of hydrogen bond donor and acceptor of additive were different, the degree of mutual dissolution between additive molecule and aqueous solution was different, so that the number of additive molecules that could participate in the formation of hydrate was different, which had a certain impact on the separation efficiency.
资助项目	China Postdoctoral Science Foundation[2016 M602260] ; China Postdoctoral Science Foundation[2018 M632800] ; Key Scientific Research Project of Colleges and Universities in Henan Province[19A470009] ; Henan Provincial Key R&D and Promotion Project[192102210080] ; National Natural Science Foundation of China[51904330] ; Program of Henan Center for Outstanding Overseas Scientists[GZS2018004]
WOS关键词	PRE-COMBUSTION CAPTURE ; CLATHRATE HYDRATE ; CARBON-DIOXIDE ; SEMICLATHRATE HYDRATE ; PHASE-EQUILIBRIA ; NATURAL-GAS ; FUEL GAS ; FLUE-GAS ; METHANE ; MIXTURE
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000559057400006
资助机构	China Postdoctoral Science Foundation ; Key Scientific Research Project of Colleges and Universities in Henan Province ; Henan Provincial Key R&D and Promotion Project ; National Natural Science Foundation of China ; Program of Henan Center for Outstanding Overseas Scientists
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/27597]
专题	中国科学院广州能源研究所
通讯作者	Li, Pan
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Engn Lab Henan Prov Biorefinery Technol & Equipme, Zhengzhou 450001, Henan, Peoples R China 3.Zhengzhou Univ, Sch Mech & Power Engn, Zhengzhou 450001, Henan, Peoples R China 4.Henan Outstanding Foreign Scientists Workroom, Zhengzhou 450001, Henan, Peoples R China 5.SINOPEC Res Inst Safety Engn, State Key Lab Safety & Control Chem, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Bai, Jing,Zhen, Xiang,Yan, Kele,et al. The effect of additive molecular diameters on the hydrate-based CO2 capture from simulated biogas[J]. FUEL,2020,278:9.
APA	Bai, Jing,Zhen, Xiang,Yan, Kele,Li, Pan,Fang, Shuqi,&Chang, Chun.(2020).The effect of additive molecular diameters on the hydrate-based CO2 capture from simulated biogas.FUEL,278,9.
MLA	Bai, Jing,et al."The effect of additive molecular diameters on the hydrate-based CO2 capture from simulated biogas".FUEL 278(2020):9.