IGCC process with combined methanol synthesis/water gas shift fo

Gas: heating and illuminating – Processes – Fuel mixtures

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518700, 518708, 518711, C07C 3104

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active

049464779

ABSTRACT:
The present invention relates to an improvement to a process for the production of methanol from synthesis gas containing carbon monoxide and hydrogen utilizing a three phase or liquid-phase reaction technology. The improvement to the process is the addition of relatively small amounts of water to the liquid-phase reactor thereby allowing for the use of a CO-rich synthesis gas for the production of methanol by effectuating in the same reactor the methanol synthesis and water-gas shift reactions. A portion of the unreacted synthesis gas stream from the liquid-phase reactor is separated into a hydrogen-rich component and a carbon monoxide-rich component. The hydrogen-rich component is combined with a portion of the unreacted synthesis gas stream from the liquid-phase reactor to form a gas-phase methanol reactor feed stream for producing methanol, and the carbon monoxide-rich component is combined with the unreacted effluent from the gas-phase methanol reactor to form a feed stream for combustion in a gas turbine.

REFERENCES:
patent: 2665289 (1954-01-01), Arnold
patent: 4477594 (1984-10-01), Greene et al.
Sherwin et al., "Liquid-Phase Methanol", EPRI Report AF-1291, pp. 5/3-5/7, Dec. 1979.
Vedage et al., "Water Promotion and Identification of Intermediates in Methanol Synthesis", Proceedings, 8th International Congress on Catalysis, vol. II, pp. 47-58, 1984.

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