Method for reactivating alkanolamine solution

Abstract

A method for reactivating alkanolamine solution, including the following steps: performing, by using a hydrogen phosphate ion remover, a first adsorption treatment on a to-be-reactivated alkanolamine solution to obtain a first solution and an adsorption system; performing, by successively using a hydroxide ion exchange resin and a methyldiethanolamine cation exchange resin, a second adsorption treatment on the first solution to obtain a second solution; performing a first mixing treatment on an ammonium sulfate solution and the adsorption system to obtain a third solution and a to-be-regenerated remover; performing a second mixing treatment on a hydrogen ion exchange resin and the third solution to obtain a fourth solution; and performing a third mixing treatment on the second solution and the fourth solution to obtain a reactivated alkanolamine solution.

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