Process and apparatus for separation of constituents of gases using gas hydrates
Patent 5434330 Issued on July 18, 1995. Estimated Expiration Date: 
June 23, 2013. 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.
June 23, 2013. 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 ReferencesPurification of natural gas by liquid/liquid extraction with a polar solvent Method of treating natural gas to obtain a methane rich fuel gas Purging of nitrogen from natural gas Patent #: 5047074 InventorsApplicationNo. 081672 filed on 06/23/1993US Classes:585/864, Organic agent48/127.5, Process including chemical reaction95/149, LIQUID CONTACTING (E.G., SORPTION, SCRUBBING, ETC.)95/187, And recycle or reuse of contact liquid for further contact95/199, Liquid contact in plural serial stages95/237, Organic gas, liquid particle, or solid particle sorbed (e.g., vapor, mist, dust, etc.)422/162, Inorganic hydrator585/866Acid, anhydride, ester or etherExaminersPrimary: McFarlane, AnthonyAssistant: Phan, Nhat D. Attorney, Agent or FirmInternational ClassC07C 007/00AbstractA process and an apparatus for separating desired clathrate forming gases from a gas mixture containing the desired clathrate forming gases. The process includes providing a stream of the gas mixture, contacting the stream of the gas mixture with an aqueous solvent to form a solid clathrate hydrate suspension in the aqueous solvent. The forming of the solid clathrate hydrate suspension in the aqueous solution causing the gaseous stream to be thereafter leaner in the desired clathrate forming gases. The solid clathrate hydrate suspension and the aqueous solution are subjected to an elevated temperature and to a reduced pressure to produce a product gaseous stream which is richer in the desired clathrate forming gases. |
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