Replacement of methane from quartz sand-bearing hydrate with carbon dioxide-in-water emulsion

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	Replacement of methane from quartz sand-bearing hydrate with carbon dioxide-in-water emulsion
	Zhou, Xitang 2,3; Fan, Shuanshi 1; Liang, Deqing 2; Du, Jianwei 2
刊名	energy & fuels
	2008-05-01
卷号	22 期号:3 页码:1759-1764
关键词	The replacement of CH4 from its hydrate in quartz sand with 90:10, 70:30, and 50:50 (W-CO2:W-H2O) carbon dioxide-in-water (C/W) emulsions and liquid CO2 has been performed in a cell with size of empty set 36 x 200 mm. The above emulsions were formed in a new emulsifier, in which the temperature and pressure were 285.2 K and 30 MPa, respectively, and the emulsions were stable for 7-12 h. The results of replacing showed that 13.1-27.1%, 14.1-25.5%, and 14.6-24.3% of CH4 had been displaced from its hydrate with the above emulsions after 24-96 It of replacement, corresponding to about 1.5 times the CH4 replaced with high-pressure liquid CO2. The results also showed that the replacement rate of CH4 with the above emulsions and liquid CO2 decreased from 0.543, 0.587, 0.608, and 0.348 1/h to 0.083, 0.077, 0.069, and 0.063 1/h with the replacement time increased from 24 to 96 h. It has been indicated by this study that the use of CO2 emulsions is advantageous compared to the use of liquid CO2 in replacing CH4 from its hydrate.
ISSN号	0887-0624
通讯作者	ssfan@scut.edu.cn
中文摘要	the replacement of ch4 from its hydrate in quartz sand with 90:10, 70:30, and 50:50 (w-co2:w-h2o) carbon dioxide-in-water (c/w) emulsions and liquid co2 has been performed in a cell with size of empty set 36 x 200 mm. the above emulsions were formed in a new emulsifier, in which the temperature and pressure were 285.2 k and 30 mpa, respectively, and the emulsions were stable for 7-12 h. the results of replacing showed that 13.1-27.1%, 14.1-25.5%, and 14.6-24.3% of ch4 had been displaced from its hydrate with the above emulsions after 24-96 it of replacement, corresponding to about 1.5 times the ch4 replaced with high-pressure liquid co2. the results also showed that the replacement rate of ch4 with the above emulsions and liquid co2 decreased from 0.543, 0.587, 0.608, and 0.348 1/h to 0.083, 0.077, 0.069, and 0.063 1/h with the replacement time increased from 24 to 96 h. it has been indicated by this study that the use of co2 emulsions is advantageous compared to the use of liquid co2 in replacing ch4 from its hydrate.
英文摘要	the replacement of ch(4) from its hydrate in quartz sand with 90:10, 70:30, and 50:50 (w(co2):w(h2o)) carbon dioxide-in-water (c/w) emulsions and liquid co(2) has been performed in a cell with size of empty set 36 x 200 mm. the above emulsions were formed in a new emulsifier, in which the temperature and pressure were 285.2 k and 30 mpa, respectively, and the emulsions were stable for 7-12 h. the results of replacing showed that 13.1-27.1%, 14.1-25.5%, and 14.6-24.3% of ch(4) had been displaced from its hydrate with the above emulsions after 24-96 it of replacement, corresponding to about 1.5 times the ch(4) replaced with high-pressure liquid co(2). the results also showed that the replacement rate of ch(4) with the above emulsions and liquid co(2) decreased from 0.543, 0.587, 0.608, and 0.348 1/h to 0.083, 0.077, 0.069, and 0.063 1/h with the replacement time increased from 24 to 96 h. it has been indicated by this study that the use of co(2) emulsions is advantageous compared to the use of liquid co(2) in replacing ch(4) from its hydrate.
WOS标题词	science & technology ; technology
类目[WOS]	energy & fuels ; engineering, chemical
研究领域[WOS]	energy & fuels ; engineering
关键词[WOS]	gas ; co2 ; dissociation ; surfactant ; inhibitors
收录类别	SCI
原文出处	http://pubs.acs.org/journal/enfuem
语种	英语
WOS记录号	WOS:000256057600045
公开日期	2010-09-23
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/3426]
专题	中国科学院广州能源研究所
作者单位	1.S China Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, MOE, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Maoming Univ, Sch Chem Engn, Maoming 525000, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Xitang,Fan, Shuanshi,Liang, Deqing,et al. Replacement of methane from quartz sand-bearing hydrate with carbon dioxide-in-water emulsion[J]. energy & fuels,2008,22(3):1759-1764.
APA	Zhou, Xitang,Fan, Shuanshi,Liang, Deqing,&Du, Jianwei.(2008).Replacement of methane from quartz sand-bearing hydrate with carbon dioxide-in-water emulsion.energy & fuels,22(3),1759-1764.
MLA	Zhou, Xitang,et al."Replacement of methane from quartz sand-bearing hydrate with carbon dioxide-in-water emulsion".energy & fuels 22.3(2008):1759-1764.