Patent ID: 7666813
Filing Date: 2010-02-23
Classification: B01D,Y02C,Y02E,Y02W

Abstract:
1. An absorption medium for deacidifying fluid streams, comprising: at least one aliphatic amine; and at least one non-hydroquinoid antioxidant; wherein the antioxidant comprises at least one member selected from the group consisting of: alkylated monophenols, hydroquinone monoethers and monoesters, hydroxylated thiodiphenyl ethers, benzyl phosphonates, esters of β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid, 2-(2′-hydroxyphenyl)benzotriazoles, sterically hindered amines, nitroxyl free radicals and boron compounds.