U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Process for making gas hydrates

Patent 6028234 Issued on February 22, 2000. Estimated Expiration Date: Icon_subject December 17, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2270016

2375559

2904511

3170870

3514274

3856492

3888434

Gas-liquid contacting method and scrubber used therefor
Patent #: 3954921
Issued on: 05/04/1976
Inventor: Yoshida ,   et al.

Transportation of natural gas as a hydrate
Patent #: 3975167
Issued on: 08/17/1976
Inventor: Nierman

Method of transporting a hydrate forming fluid
Patent #: 4915176
Issued on: 04/10/1990
Inventor: Sugier, et al.

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Inventors

Assignee

Application

No. 766983 filed on 12/17/1996

US Classes:

585/15, HYDRATE OR PRODUCTION THEREOF44/265, SOLIDIFIED LIQUID (E.G., GEL, ETC.)48/127.3, METHANE (NATURAL GAS) -CONTAINING PRODUCT, OR TREATMENT OR RECOVERY PROCESS62/45.1, STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN)62/637, Solidification95/153, Hydrate inhibitor137/3, Mixing of plural fluids of diverse characteristics or conditions137/13, Affecting flow by the addition of material or energy166/310, Entraining or incorporating treating material in flowing earth fluid166/371, Including non-expulsive material placed in well208/187, Water removal (dehydration)585/950Prevention or removal of corrosion or solid deposits

Examiners

Primary: Wood, Elizabeth D.

Attorney, Agent or Firm

Foreign Patent References

  • WO 93/01153 WO. 01/13/1993

International Classes

C07C 009/00
F17D 001/16
C10G 033/00

Abstract

The present invention provides a process for continuously producing clathrate hydrate. This process includes comprising the steps of:(a) pressurizing a hydrate-forming gas to an elevated pressure and cooling the hydrate-forming gas below the gas-water-hydrate equilibrium point at the elevated pressure;(b) cooling liquid water below the gas-water-hydrate equilibrium temperature for the elevated pressure;(c) charging hydrate-forming gas at the elevated pressure into a reaction zone which contains a movable surface;(d) atomizing water in the reaction zone in contact with the hydrate-forming gas to form gas hydrates in the reaction;(e) depositing the gas hydrates on the movable surface; and(f) collecting the gas hydrates from the movable surface.

Other References

  • 1936 Index To Refiner And Natural Gasoline Manufacturer, A Gulf Publishing Company Publication, "The Solvent Dewaxing Process", by W. P. Gee, et al.., vol. 15, Jun. 1936 (pp. 205-209)
  • American Gas Association Monthly, Feb. 1946, vol. 28, No. 2, Hydrate Storage of Natural Gas, by Benjamin Miller, et al., (pp. 63-67, p. 92)
  • Handbook of Natural Gas Engineering, Chapter 5, "Water-Hydrocarbon Systems", by Donald L. Katz (pp. 189-221) no date available
  • Chemical Engineering Science, vol. 42, No. 7, 1987 "Kinetics of Methane Hydrate Decomposition", by H. C. Kim, et al., (pp. 1645-1653) no month available
  • Soviet Geology and Geophysics, "The Dynamics of the Zone of Hydrate Formation and its Effect on the Temperature Regime of the Cryolithozone", by A. A. Trofimuk, et al., vol. 27, No. 11, 1986 (pp. 1-7) no month available
  • Newscientist, "Gas Hydrates Keep Energy On Ice", by Ian Ridley et al., Feb. 25, 1988 (pp. 53-58)
  • Theoretical Foundations of Chemical Engineering, Translated from Russian, "New Technologies Using Gas Hydrates", by L. F. Smirnov, vol. 23, No. 6, Nov.-Dec. 1989 (pp. 514-526)
  • Inzbenernay A Geologiy A, "Experimental Investigations of the Microstructure of Agglomerate of Ice and Methane Hydrate", by E. D. Ershov, et al.. No. 3, (pp. 32-37) 1990 no month available
  • The State-of-the-Art of Hydrates as related to the Natural Gas Industry Final Report (Jan. 1990-Oct. 1991) Part 4. of a Project Entitled "The Economic Impact of Fluid Properties Data on the Gas Industry" by E. Dendy Sloan, Jr. for Gas Research Institute Contract Number 5086-260-1212, Jun. 1, 1992 (pp. 1-34)
  • Cold Regions Science and Technology, 20 (1992), Elsevier Science Publishers B.V., Amsterdam, "Experimental Research on Gas Hydrate Decomposition in Frozen Rocks", by E. D. Ershov, et al.. (pp. 147-156) no month available
  • Industrial & Engineering Chemistry Research, A publication of the American Chemical Society, Jul. 1993, 32 "Clathrate Hydrates", by Peter Englezos (pp. 1251-1274)
  • SPE Production & Facilities, "Storing Natural Gas as Frozen Hydrate", by J. S. Gudmundsson, et al., Feb. 1994, vol. 9, No. 1 (pp. 69-73)
  • Annals of the New York Academy of Sciences, vol. 715, "Overview--Gas Hydrate Geology and Geography" by Rodney D. Malone (pp. 225-231) (1994) no month available
  • Annals of the New York Academy of Sciences, vol. 715, "Natural Gas Hydrate Occurrence and Issues", by Keith A. Kvenvolden (pp. 232-246) (1994) no month available
  • The Proceedings of the Fifth (1995) International Offshore and Polar Engineering Conference, vol. 1, 1995 "Transport of Natural Gas as Frozen Hydrate", by J. S. Gudmundsson, et al. (pp. 282-288). no month available
  • Advanced Technology, Leonard LeBlanc, Houston, "Natural Gas Transport as Hydrates 25% Below Cost of LNG". no date available
  • McGraw-Hill Book Company, Third Edition, by Max S. Peters, et al., "Plant Design and Economics for Chemical Engineers" (pp. 575-586) (1980) no month availabl
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