Fischer-Tropsch wastewater utilization
AssigneeTexaco Inc.
InventorLalit S. Shah
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Abstract
The present invention is generally directed to handling the wastewater, or condensate, from a hydrocarbon synthesis reactor. More particularly, the present invention provides a process wherein the wastewater of a hydrocarbon synthesis reactor, such as a Fischer-Tropsch reactor, is sent to a gasifier and subsequently reacted with steam and oxygen at high temperatures and pressures so as to produce synthesis gas. The wastewater may also be recycled back to a slurry preparation stage, where solid combustible organic materials are pulverized and mixed with process water and the wastewater to form a slurry, after which the slurry fed to a gasifier where it is reacted with steam and oxygen at high temperatures and pressures so as to produce synthesis gas.
Claims10
A method for treating wastewater from a hydrocarbon synthesis reactor comprising:
- (a) mixing the wastewater with a solid combustible organic fuel to form a slurry;
- and
- (b) gasifying the slurry in a gasifier to produce synthesis gas.
A hydrocarbon synthesis process comprising:
- (a) mixing a solid combustible organic fuel with a wastewater to form a slurry;
- (b) forming a synthesis gas by gasifying the slurry in a gasifier;
- (c) contacting the synthesis gas with a hydrocarbon synthesis catalyst to form reaction products and the wastewater;
- (d) separating the wastewater from the reaction products;
- and
- (e) recycling the wastewater back to be mixed with the combustible organic fuel to form the slurry.
A feed composition for a gasifier in the form of a slurry comprising solid combustible organic fuel and wastewater from a hydrocarbon synthesis reactor.
A method of preparing a feed for a gasifier in the form of a slurry comprising mixing solid combustible organic fuel with wastewater from a hydrocarbon synthesis reactor.
Dependencies are inferred from the claim text.