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

Method for production of gas hydrates for transportation and storage

Patent 5536893 Issued on July 16, 1996. Estimated Expiration Date: Icon_subject January 7, 2014. 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

3514274

3888434

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.

Apparatus and process for storing hydrate-forming gaseous hydrocarbons Patent #: 4920752
Issued on: 05/01/1990
Inventor: Ehrsam

Inventor

Application

No. 195748 filed on 01/07/1994

US Classes:

585/15, HYDRATE OR PRODUCTION THEREOF62/45.1, STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN)208/187Water removal (dehydration)

Examiners

Primary: Pal, Asok
Assistant: Yildirim, Bekir L.

Attorney, Agent or Firm

International Class

C07C 007/20

Abstract

Method for the production of gas hydrates for storage and transportation of hydrate forming gases. The gas is pressurized and cooled, whereupon the gas (1b) is supplied to a vessel (6), to which water (7) is added simultaneously to the vessel (6) to form fine water droplets that are dispersed in the gas (1b) supplied. The temperature and pressure in the vessel (6) are adjusted to produce hydrate from water and gas. The gas (1b) supplied and the water droplets (7) react to form hydrate (8a); then the hydrate is then withdrawn from the reactor (6), optionally cooled in a cooling apparatus (11), and then passed to an agglomeration step (12) to agglomerate the hydrate (8a), thus increasing the density of the hydrate (8a) and to embed more gas in the interstices between the hydrate particles (8a). The agglomerated hydrate particles (8a) are transported to a suitable transportation unit or storage container to transport/store the hydrate at adiabatic conditions at atmosphere pressure or at a slight gauge pressure at a temperature below 0° C., preferably at minus 10° C. to minus 15° C.

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