Gas hydrate regassification method and apparatus using steam or other heated gas or liquid
Patent 6028235 Issued on February 22, 2000. Estimated Expiration Date: 
October 14, 2017. 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.
October 14, 2017. 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 2356407 2375559 2683972 2904511 3170870 3514274 3856492 3888434 Gas-liquid contacting method and scrubber used therefor InventorsAssigneeApplicationNo. 950247 filed on 10/14/1997US Classes:585/15, HYDRATE OR PRODUCTION THEREOF62/45.1, STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN)62/54.2, Controlled conversion of solidified gas to another phase62/54.3, Storing solidified gas585/800, PURIFICATION, SEPARATION, OR RECOVERY585/801By conversion of solid to gas, e.g., sublimation, etc., or by melting or squeezing out liquid from solid natural sourceExaminersPrimary: Griffin, Walter D.Assistant: Preisch, Nadine Attorney, Agent or FirmForeign Patent References
International ClassesC07C 007/20F17C 062/542 AbstractA method and apparatus for safely, conveniently, and inexpensively liberating gas from gas hydrates includes the use of a device, provided adjacent to or in the bulk gas hydrates, for exposing the gas hydrates to heat from a gas or liquid (preferably steam). The gas hydrates can be directly exposed to the gas or liquid or indirectly exposed through a thermally conductive coil or channel. The heat from the gas or liquid dissociates the gas hydrates into the corresponding gas component and water component. After liberation, the gas component can be collected for further storage, transport, or use. The apparatus further includes a mechanism for moving at least a portion of the gas or liquid through the device for exposing the gas hydrates to heat. The device for exposing the gas hydrates to heat also can be movable, so it can be maintained in close proximity to or in contact with the gas hydrates for continued efficient gasification of the hydrates.Other References
Field of SearchHYDRATE OR PRODUCTION THEREOFPURIFICATION, SEPARATION, OR RECOVERY By conversion of solid to gas, e.g., sublimation, etc., or by melting or squeezing out liquid from solid natural source Storing solidified gas STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN) Controlled conversion of solidified gas to another phase |
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