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Tech. Q. Master Brew. Assoc. Am., 1985, 22(1), 1-4. English

Recovery of carbon dioxide from boiler flue gas.

Gruber, J.D.

Shortages and rising prices of carbon dioxide in areas in USA have led to the development of new technology for the recovery of carbon dioxide from flue gases. The reversible reaction between carbon dioxide and an alkanolamine has been used to extract carbon dioxide from flue gases from natural gas, propane and light fuel oils. The flue gases must contain at least 8% of carbon dioxide, oxygen levels up to 50% are tolerated but levels of sulphur dioxide above 0.001% have to be reduced by caustic scrubbing. Permanganate and water scrubbing followed by carbon absorption gives a food grade product. Depending on how much existing equipment can be used a plant producing 6 ton/day would cost between $150,000 and $300,000.
Keywords: absorption boiler carbon dioxide gas recovery