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Effect of CH4 Gas Injection Method on CH4 Hydrate Formation

  • DING Ya-long ,
  • XU Chun-gang ,
  • LI Xiao-sen
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  • 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    2. CAS Key Laboratory of Gas Hydrate, Guangzhou 510640, China;
    3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China;
    4. Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China;
    5. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2017-03-09

  Revised date: 2017-05-10

  Online published: 2017-08-30

Abstract

In order to study the effects of CH4 gas injection method on the morphologies, structures and gas contents of methane hydrate, a hydrate formation experiment was performed in a high pressure reactor. Results showed that small amount of CH4 hydrate was produced when gas injected from the top of the reactor, while large amount of hydrate was produced when gas bubbled from the bottom. There are few CH4 molecules in large cages of structure I hydrate when performed by the top-injection method, and the ratio of CH4 molecules in large and small cages was ideally 3:1 when the CH4 hydrate was prepared by bottom-bubble method.

Cite this article

DING Ya-long , XU Chun-gang , LI Xiao-sen . Effect of CH4 Gas Injection Method on CH4 Hydrate Formation[J]. Advances in New and Renewable Energy, 2017 , 5(4) : 300 -304 . DOI: 10.3969/j.issn.2095-560X.2017.04.010

References

[1] SLOAN JR E D, KOH C. Clathrate hydrates of natural gases[M]. 3rd ed. London: CRC Press, 2007. [2] MAO W L, MAO H K, GONCHAROV A F, et al. Hydrogen clusters in clathrate hydrate[J]. Science, 2002, 297(5590): 2247-2249. DOI: 10.1126/science.1075394. [3] JIN Y, KONNO Y, NAGAO J. Growth of methane clathrate hydrates in porous media[J]. Energy & fuels, 2012, 26(4): 2242-2247. DOI: 10.1021/ef3001357. [4] KASTNER M, ELDERFIELD H, MARTIN J B. The behaviour and influence of fluids in subduction zones— fluids in convergent margins: what do we know about their composition, origin, role in diagenesis and importance for oceanic chemical fluxes?[J]. Philosophical transactions of the royal society A: mathematical, physical and engineering sciences, 1991, 335(1638): 243-259. DOI: 10.1098/rsta. 1991.0045. [5] OHGAKI K, TAKANO K, MORITOKI M. Exploitation of CH4 hydrates under the nankai trough in combination with CO2 storage[J]. Kagaku kogaku ronbunshu, 1994, 20(1): 121-123. DOI: 10.1252/kakoronbunshu.20.121. [6] ENGLEZOS P. Clathrate hydrates[J]. Industrial & engineering chemistry research, 1993, 32(7): 1251-1274. DOI: 10.1021/ie00019a001. [7] DEMIRBAS A. Methane gas hydrate[M]. London: Springer, 2010. DOI: 10.1007/978-1-84882-872-8. [8] SUNG W, KANG H. Experimental investigation of production behaviors of methane hydrate saturated in porous rock[J]. Energy sources, 2003, 25(8): 845-856. DOI: 10.1080/00908310390207873. [9] LI G, LI X S, TANG L G, et al. Experimental investigation of production behavior of methane hydrate under ethylene glycol injection in unconsolidated sediment[J]. Energy & fuels, 2007, 21(6): 3388-3393. DOI: 10.1021/ef060644d. [10] BOSWELL R, COLLETT T S, FRYE M, et al. Subsurface gas hydrates in the northern Gulf of Mexico[J]. Marine and petroleum geology, 2012, 34(1): 4-30. DOI: 10.1016/j.marpetgeo.2011.10.003. [11] DAI S, SANTAMARINA J C, WAITE W F, et al. Hydrate morphology: physical properties of sands with patchy hydrate saturation[J]. Journal of geophysical research, 2012, 117(B11): B11205. DOI: 10.1029/ 2012JB009667. [12] WINTERS W J, WAITE W F, MASON D H, et al. Methane gas hydrate effect on sediment acoustic and strength properties[J]. Journal of petroleum science and engineering, 2007, 56(1-3): 127-135. DOI: 10.1016/j. petrol.2006.02.003. [13] PRIEST J A, REES E V L, CLAYTON C R I. Influence of gas hydrate morphology on the seismic velocities of sands[J]. Journal of geophysical research, 2009, 114(B11): B11205. DOI: 10.1029/2009JB006284.
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