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Experimental study of mixed CH4/CO2 hydrate formation kinetics and modeling
Zhou, Xuebing1,2,3; Liang, Deqing1,2; Yi, Lizhi1,2,3
2014-11-01
Source PublicationASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
Volume9Issue:6Pages:886-894
AbstractThe gas hydrate formation process from CH4/CO2 gas mixtures was experimentally investigated in a 5.3L stirred reactor under isothermal-isochoric conditions in a feed pressure of 3.5MPa at the temperature ranging from 0.0 to 4.0 degrees C and CH4 mole fraction in the feed gas ranging from 0.2 to 0.8. The composition changes of the gas phase were determined by gas chromatography, and a simplified kinetic model was used to calculate the gas composition changes in the hydrate phase. The results showed that the initial gas consumption rates and the total gas consumptions of each gas species were remarkably enhanced as the temperature decreased. The gas consumptions can be well described by the kinetic model with an overall average absolute deviation of 5.2%. In addition, the hydrate formation from CH4/CO2 gas mixtures exhibited a good selectivity for CO2 capture in the early stage of hydrate crystallization, especially at high temperatures. Increased CO2 concentration in the feed gas could also efficiently accelerate the hydrate formation. It was suggested that CO2 played a key function in stabilizing hydrate structure in the newly formed hydrate nuclei. (c) 2014 Curtin University of Technology and John Wiley & Sons, Ltd.
SubtypeArticle
KeywordGas Hydrate Carbon Dioxide Methane Kinetics Co2 Recovery
WOS HeadingsScience & Technology ; Technology
DOI10.1002/apj.1839
WOS Subject ExtendedEngineering
WOS KeywordCARBON-DIOXIDE ; NATURAL-GAS ; CLATHRATE HYDRATE ; METHANE RECOVERY ; PRESSURIZED CO2 ; CAGE OCCUPANCY ; LIQUID CO2 ; FLUE-GAS ; MIXTURES ; HYDROGEN
Indexed BySCI
Language英语
WOS SubjectEngineering, Chemical
WOS IDWOS:000346294200011
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10678
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100083, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhou, Xuebing,Liang, Deqing,Yi, Lizhi. Experimental study of mixed CH4/CO2 hydrate formation kinetics and modeling[J]. ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,2014,9(6):886-894.
APA Zhou, Xuebing,Liang, Deqing,&Yi, Lizhi.(2014).Experimental study of mixed CH4/CO2 hydrate formation kinetics and modeling.ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,9(6),886-894.
MLA Zhou, Xuebing,et al."Experimental study of mixed CH4/CO2 hydrate formation kinetics and modeling".ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING 9.6(2014):886-894.
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