| 摘要 |
<p>A method for eliminating or substantially reducing emission of amines and alkaline degradation products thereof to the atmosphere from a plant for CO 2 capture from a flue gas, where the CO 2 is captured by countercurrent flow to an absorbent in an absorption zone, the absorbent comprising an aqueous solution of one or more amine(s), to give a CO 2 lean flue gas that is released into the surroundings, and a CO 2 rich absorbent that is regenerated in a regeneration column to give a CO 2 rich gas that is treated further, and regenerated absorbent that is recycled to the absorption zone, wherein the CO 2 lean flue gas is washed with an aqueous solution of sulphuric acid, phosphoric acid, nitric acid, acetic acid, formic acid, and citric acid, to remove or substantially reduce the amount of amine(s) and alkaline degradation products thereof in the gas, is described.</p> |
