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US 2024/0247799 A1Published application
Recovery and reuse of high-pressure boilers and heat recovery steam generators blowdown using microwave energy irradiation
AssigneeSaudi Arabian Oil Company
InventorsMohamud M. Farah, Mohammed A. Qahtani
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Abstract
A system and method for continuously treating blowdown water derived from one or more boilers using a microwave reactor, a cooling system, and an ion exchange filter to remove insoluble solids, organic matter, bacteria, and other impurities. The recovered water is stored, treated with a corrosion inhibitor, an oxidizing biocide, a non-oxidizing biocide, and a scale inhibitor, before being recycled for reuse in the boiler system.
Claims19
A system for treating blowdown water derived from one or more boilers, comprising:
- a microwave reactor configured to receive the blowdown water;
- a cooler in fluid communication with the microwave reactor;
- and
- a filter in fluid communication with the cooler.
1 more element
A method for treating water, comprising:
- receiving blowdown water from one or more boilers, wherein the blowdown water comprises an impurity;
- exposing the blowdown to microwave radiation to produce a vapor;
- cooling the vapor to produce microwaved water;
- and
- filtering the microwaved water to produce recovered water, wherein the recovered water comprises a reduced amount of the impurity relative to the blowdown water.
2 more elements
A method for treating water, comprising:
- continuously removing blowdown water from a boiler system comprising one or more combustion boilers and one or more heat recovery steam generators, wherein the boiler blowdown water comprises wherein the blowdown water comprises impurities selected from the group consisting of iron salts, ionic silica, a phosphate scale inhibitor, a polymeric conditioner, bacteria, and combinations thereof;
- exposing the blowdown water in a microwave reactor to microwave radiation to precipitate a portion of the impurities and produce a vapor;
- cooling the vapor in blowdown cooler to produce microwaved water;
- and
- filtering the microwaved water in an ion exchange filter to filter another portion of the impurities and produce recovered water, wherein the recovered water comprises a reduced amount of the impurities;
- storing the recovered water;
- adding to the recovered water one or more of a corrosion inhibitor, an oxidizing biocide, a non-oxidizing biocide, and a scale inhibitor;
- and
- recycling the recovered water to the boiler system.
6 more elements
Dependencies are inferred from the claim text.