In-situ continuous coke deposit removal by catalytic steam gasification
AssigneeUnited Technologies Corporation
InventorHe Huang
Life of this patent
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Abstract
A coke removal system removes coke deposits from the walls of a high temperature passage in which hydrocarbon fuel is present. The system includes a carbon-steam gasification catalyst and a water source. The carbon-steam gasification catalyst is applied to the walls of the high temperature passage. The water reacts with the coke deposits on the walls of the high temperature passage to remove the coke deposits from the walls of the high temperature passage by carbon-steam gasification in the presence of the carbon-steam gasification catalyst.
Claims20
A system for removing coke deposits from walls of a heat exchanger, the system comprising:
- a carbon-steam gasification catalyst applied to the walls of the heat exchanger;
- and
- a hydrocarbon fuel-water supply connected to the heat exchanger to provide a hydrocarbon fuel-water stream that passes through the heat exchanger and reacts with the carbon-steam gasification catalyst to remove the coke deposits by catalytic carbon-steam gasification.
A system comprising:
- a hydrocarbon fuel reservoir;
- a water source;
- a heat exchanger having a catalyst coated on walls of a passage for reacting with the hydrocarbon fuel;
- a delivery system connected to the hydrocarbon fuel reservoir and the water source for delivering a hydrocarbon fuel-water stream that passes through the heat exchanger and reacts with the catalyst to remove the coke deposits by catalytic steam gasification;
- and
- a combuster, wherein hydrocarbon fuel, carbon monoxide, and hydrogen gas are burned after the hydrocarbon fuel-water stream passes through the heat exchanger.
Dependencies are inferred from the claim text.