Abstract
The kinetics behavior of methane hydrate formation in the presence of tetrahydrofuran (THF) as promoter was studied. A set of experimental equipment was designed and constructed. A series of kinetics data for the formation of methane hydrate in the presence of THF were measured with the isochoric method. The influences of temperature, pressure and liquid flow rate on the methane consumption rate were studied respectively. Based on the Chen-Guo hydrate formation mechanism, a kinetics model for the formation of methane hydrate in the presence of THF by using the dimensionless Gibbs free energy difference of quasi-chemical reaction of basic hydrate formation, — δG/RT as the driving force was proposed. The model was used to calculate the rate of methane consumption and it was shown that the calculated results were in good agreement with the experimental results.
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References
Chen G. J. and Guo T. M. (1996) Thermodynamic modeling of hydrate formation based on new concepts.Fluid Phase Equilibria, 122, 43–65
Chen G. J. and Guo T. M. (1998) A new approach to gas hydrate modeling.Chemical Engineering Journal, 71, 145–151
Englezos P., Kalogerakis, N., Dholabhai P.D. and Bishnoi P. R. (1987) Kinetics of formation of methane and ethane gas hydrates,Chemical Engineering Science, 42(11), 2647–2658
Glew D. N. (1966) Liquid fractionation process using gas hydrate.US Patent, 3231630
Kang S. P., Lee H., Lee C. S. and Sung W. M. (2001) Hydrate phase equilibria of the guest mixture containing CO2, N2 and tetrahydrofuran.Fluid Phase Equilibria, 185, 101–109
Makogon Y. F. (1981)Hydrates of Natural Gas. Tulsa Oklahomap, Penn Well Books, 288–297
Saito Y., Kawasaki T., Kondo T. and Hiraoka R. (1996) Methane storage in hydrate phase with water soluble guests.The Proceeding of the 2nd International Conference on Gas Hydrate, 459–465.
Skovborg P. and Rasmussen P. (1994) A mass transport limited model for the growth of methane and ethane gas hydrates.Chemical Engineering Science, 49, 1131–1143.
Spencer D. F. (2000) Methods of selectively separating CO2 from a multicomponent gaseous stream.US Patent, 6106595
Tohidi B., Danesh A., Todd A. C.,et al. (1997) Equilibrium data and thermodynamic modeling of cyclopentane and neopentane hydrates.Fluid Phase Equilibria, 138, 241–250
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Ning Zhengfu was born in 1965 and received his Ph.D degree from China University of Petroleum in 2001. Now, as an associate professor, he is working in China University of Petroleum (Beijing), with his research interests in production and reservoir engineering. E-mail: kyc@cup.edu.cn
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Zhengfu, N., Shixi, Z., Qin, Z. et al. Experimental and modeling study of kinetics for methane hydrate formation with tetrahydrofuran as promoter. Pet. Sci. 4, 61–65 (2007). https://doi.org/10.1007/BF03186575
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DOI: https://doi.org/10.1007/BF03186575