DOI QR코드

DOI QR Code

Experimental Study on the Structural Characteristics of Gas Hydrates for the Transportation of Natural Gas

천연가스 수송을 위한 가스 하이드레이트의 구조적 특성에 대한 실험적 연구

  • Published : 2003.02.01

Abstract

Natural gas hydrates typically contain 85 wt.% water and 15 wt.% natural gas, and commonly belongs to cubic structure I and II. When referred to standard conditions, 1㎥ solid hydrates contain up to 172N㎥ of methane gas, depending on the pressure and temperature of production. Such large volumes make natural gas hydrates can be used to store and transport natural gas. So, the tests were performed on the formation of natural gas hydrate is governed by the pressure, temperature, gas composition etc. The results show that the formation pressure of structure II is lower about 65% and the solubility is higher about 3 times than that of structure I.

Keywords

References

  1. Sloan, E. D., 1998, Clathrate hydrates of natural gases, Marcel Dekker, inc., New York, pp. 1-318
  2. Hammerschmidt, E. G., 1934, 'Formation of gas hydrates in natural gas transmission Lines,' Int. Eng. Chem., Vol. 26, pp. 851-855 https://doi.org/10.1021/ie50296a010
  3. Kvenvolden, K, A., 1988, 'Methane hydrate - a major reservoir of carbon in the shallow geosphere,' Chem. Geol, Vol. 71, pp. 41-51 https://doi.org/10.1016/0009-2541(88)90104-0
  4. Chang, D. G., Kim, N. J., Lee, J. Y., and Kim, C. B., 2000, 'Simulation of two phase flow in porous media after dissociation of methane hydrate,' Proceeding of the KSME 2000 Fall Annual Meeting, pp. 241-246
  5. Okuda, Y., 1996, 'Exploration research on gas hydrates in Japan,' 5th Petroleum exploration and development symposium, pp. 62-98
  6. Gudmundsson, J. S., Andersson, V., and Levik, O. I., 1997, 'Gas storage and transport using hydrates,' Offshore Mediterranean Conference
  7. Okui, T., 1997, 'Utilization of Methane Hydrate,' JIE J., Vol. 76, No. 5, pp. 390-397
  8. Englezos, P., Kalogerakis, N., Dholabhai, P. D., and Bishnoi, P. R., 1987, 'Kinetics of formation of methane and ethane gas hydrate,' Chemical Engineering Science, Vol. 42, No. 11, pp. 2647-2658 https://doi.org/10.1016/0009-2509(87)87015-X