Experimental Study on Hydrate Formation with Synthesized CH4/CO2/N-2 Ternary Mixtures

doi:10.1021/acs.energyfuels.8b02021

GIEC OpenIR

	Experimental Study on Hydrate Formation with Synthesized CH4/CO2/N-2 Ternary Mixtures
	Zang, Xiaoya; Liang, Deqing1
	2018-10-01
发表期刊	ENERGY & FUELS
ISSN	0887-0624
卷号	32 期号:10 页码:10745-10753
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
摘要	The variations in the equilibrium conditions of the hydrate phase between different gas components can be employed for gas separation. The use of hydrate-based gas separation technologies for CH4 recovery from biogas has gained prominence. In this study, the formation of a ternary mixture gas hydrate with CH4, CO2, and N-2 was studied. The amount of gas consumed and the hydrate formation rate were calculated using pressure and temperature variations during the reaction. Gas composition changes, the CH4 recovery factor, and CO2 split ratio were the key parameters considered to evaluate the technical feasibility of HBGS. Results indicated that the formation of the mixture gas hydrate depends on the driving force between the hydrate equilibrium conditions and operating conditions. The process of hydrate formation can be divided into two stages: Most of the CO2 formed the hydrate in the first stage, and both CH4 and N-2 may have entered the hydrate structure in the second stage. For a given gas, the CO2 separation and CH4 recovery could not be optimized for one specific P-T condition. The powder X-ray diffraction measurements indicated that the ternary mixture gas hydrate was an structure I. The experimental results herein can provide data and theoretical support for CH4 purification and CO2 separation from biogas.
DOI	10.1021/acs.energyfuels.8b02021
关键词[WOS]	PRE-COMBUSTION CAPTURE ; UNCONVENTIONAL HYDROCARBON RESOURCES ; CARBON-DIOXIDE ; NATURAL-GAS ; CO2 CAPTURE ; FLUE-GAS ; BIOGAS MIXTURES ; SEPARATION ; BROMIDE ; STABILITY
收录类别	SCI
语种	英语
资助项目	National key research and development plan of China[2017YFC0307305] ; National Natural Science Foundation of China[51676197] ; CAS Program[KGZD-EW-301]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	National key research and development plan of China ; National Natural Science Foundation of China ; CAS Program
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000448087000071
出版者	AMER CHEMICAL SOC
引用统计	被引频次：10[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/344007/24147
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, Guangdong, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zang, Xiaoya,Liang, Deqing. Experimental Study on Hydrate Formation with Synthesized CH4/CO2/N-2 Ternary Mixtures[J]. ENERGY & FUELS,2018,32(10):10745-10753.
APA	Zang, Xiaoya,&Liang, Deqing.(2018).Experimental Study on Hydrate Formation with Synthesized CH4/CO2/N-2 Ternary Mixtures.ENERGY & FUELS,32(10),10745-10753.
MLA	Zang, Xiaoya,et al."Experimental Study on Hydrate Formation with Synthesized CH4/CO2/N-2 Ternary Mixtures".ENERGY & FUELS 32.10(2018):10745-10753.