Methanol production process using a high nitrogen content synthesis gas with a hydrogen recycle
November 8, 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 ReferencesUtilization of low BTU natural gas Process for methanol production Process for producing methanol from a feed gas Process for the production of methanol Methanol production Methanol synthesis Process for recovering natural gas in the form of a normally liquid carbon containing compound Process for producing and utilizing an oxygen enriched gas Patent #: 5245110 InventorApplicationNo. 336298 filed on 11/08/1994US Classes:518/705, TREATMENT OF FEED OR RECYCLE STREAM518/703, Gaseous oxygen utilized in the preliminary reaction518/704Water utilized in the preliminary reactionExaminersPrimary: Lone, Werren B.Attorney, Agent or FirmInternational ClassC07C 027/00AbstractA method for preparing methanol from a synthesis gas having less than 90% the stoichiometric amount of H2 to convert the CO and CO2 content of the synthesis gas to methanol by recycling into combination with such synthesis gas a sufficient amount of a hydrogen rich gas stream obtained as a permeate gas by diffusion of the process tail gas to provide a combined synthesis-recycle gas stream having at least about 95% of the stoichiometric amount of H2 to convert its CO and CO2 content to methanol. In a preferred embodiment of the invention compressed air is taken from a gas turbine to form the oxidant steam used in forming the synthesis gas, such synthesis gas in combination with the hydrogen rich recycle gas is processed through a series of methanol convertors to methanol and the non-permeate portion of the tail gas from this methanol process is returned as fuel to the gas turbine. |
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