Browse > Article
http://dx.doi.org/10.9713/kcer.2017.55.3.353

Spectroscopic Identifications and Phase Equilibria of THF + 3-OH THF + CH4 Clathrate Hydrates  

Kim, Heejoong (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST))
Ahn, Yun-Ho (Department of Chemical and Biomolecular Engineering (BK21+ program), Korea Advanced Institute of Science and Technology (KAIST))
Moon, Seokyoon (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST))
Hong, Sujin (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST))
Park, Youngjune (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST))
Publication Information
Korean Chemical Engineering Research / v.55, no.3, 2017 , pp. 353-357 More about this Journal
Abstract
In this study, the inclusion phenomena of tetrahydrofuran + 3-hydroxytetrahydrofuran + $CH_4$ clathrate hydrates were explored via thermodynamic and spectroscopic approaches. The phase equilibria of the double hydrates - THF + $CH_4$ and 3-OH THF + $CH_4$ clathrate hydrates - were determined by pressure-temperature trace during hydrate formation and dissociation, and the result revealed that the equilibrium pressures were shifted to lower pressure region compared to pure $CH_4$ hydrate. The powder X-ray diffraction patterns revealed that the double hydrates of THF + 3-OH THF formed structure II type clathrate hydrates with $CH_4$. The dispersive Raman spectra of the double clathrate hydrates also exhibited that $CH_4$ can be trapped in both $5^{12}6^4$ and $5^{12}$ cages whereas THF and 3-OH THF were encaged in $5^{12}6^4$ cage.
Keywords
Clathrate hydrate; Phase equilibria; Large organic guest molecule; Thermodynamic promoter; Thermodynamic inhibitor;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Sloan, E. D. and Koh, C. A., "Clathrate Hydrates of Natural Gases," CRC press., 3rd ed. (2008).
2 Kim, D. and Lee, H., "Phase Behavior of Gas Hydrates in Nanoporous Materials: Review," Korean J. Chem. Eng., 33(7), 1977-1988(2016).   DOI
3 Veluswamy, H. P., Prasad, P. S. R. and Linga, P., "Mechanism of Methane Hydrate Formation in the Presence of Hollow Silica," Korean J. Chem. Eng., 33(7), 2050-2062(2016).   DOI
4 Thomas, S. and Dawe, R. A., "Review of Ways to Transport Natural Gas Energy from Countries Which do Not Need the Gas for Domestic Use," Energy, 28, 1461-1477(2003).   DOI
5 Lee, Y. J., Kawamura, T., Yamamoto, Y. and Yoon, J. H., "Phase Equilibrium Studies of Tetrahydrofuran $(THF)\;+\;CH_4,\;THF\;+\;CO_2,\;CH_4\;+\;CO_2,\;and\;THF\;+\;CO_2\;+\;CH_4$ Hydrates," J. Chem. Eng. Data., 57, 3543-3548(2012).   DOI
6 Sloan, E. D., "Fundamental Principles and Applications of Natural Gas Hydrates," Nature, 426, 353-359(2003).   DOI
7 Sloan, E. D., Koh, C. A., Sum, A., Ballard, A. L., Creek, J., Eaton, M., Lachance, J., McMullen, N., Palermo, T., Shoup, G. and Talley, L., "Natural Gas Hydrates in Flow Assurance," Gulf Professional Publishing: Houston, TX, 87-97(2011).
8 Ahn, Y. H., Kang, H., Koh, D. Y., Park, Y. and Lee, H., "Gas Hydrate Inhibition by 3-hydroxytetrahydrofuran: Spectroscopic Identifications and Hydrate Phase Equilibria," Fluid Phase Equilibr., 413, 65-70(2016).   DOI
9 Kim, D., Ahn, Y. H. and Lee, H., "Phase Equilibria of $CO_2$ and $CH_4$ Hydrates in Intergranular Meso/Macro Pores of MIL-53 Metal Organic Framework," J Chem Eng Data, 60, 2178-2185(2015).   DOI
10 Nixdorf, J. and Oellrich, L. R., "Experimental Determination of Hydrate Equilibrium Conditions for Pure Gases, Binary and Ternary Mixtures and Natural Gases," Fluid Phase Equilibr., 139, 325- 333(1997).   DOI
11 Rodriguezcarvajal, J., "Recent Advances in Magnetic-Structure Determination by Neutron Powder Diffraction," Physica B, 192, 55-69(1993).   DOI
12 de Deugd, R. M., Jager, M. D. and Arons, J. D., "Mixed hydrates of Methane and Water-soluble Hydrocarbons Modeling of Empirical Results," Aiche J., 47, 693-704(2001).   DOI