PREMIX FOR PRODUCING AN ABSORPTION AGENT FOR REMOVING ACID GASES FROM A FLUID FLOW

    公开(公告)号:CA3020219A1

    公开(公告)日:2017-10-26

    申请号:CA3020219

    申请日:2017-04-06

    Applicant: BASF SE

    Abstract: The invention relates to a premix for producing an absorption agent for removing acid gases from a fluid flow, comprising a) at least one tertiary amine and/or a sterically inhibited secondary amine; b) a dicarboxylic acid in a quantity, calculated as a neutralization equivalent based on the protonatable nitrogen atoms in a), of at least 30%, wherein the dicarboxylic acid is soluble in water at a temperature of 20 °C to a maximum of 15 g dicarboxylic acid per 100 g of water; and c) 20 to 80 wt% water. The invention further relates to a method for producing an absorption agent from the premix. According to the invention, the premix represents a transportable and easily workable solution of a dicarboxylic acid of low solubility in water for the production of an absorption agent for removing acid gases from a fluid flow.

    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM FLUID FLOWS

    公开(公告)号:ZA201109017B

    公开(公告)日:2013-02-27

    申请号:ZA201109017

    申请日:2011-12-08

    Applicant: BASF SE

    Abstract: An absorption medium for the removal of acid gases from a fluid stream comprises an aqueous solution a) of at least one amine and b) at least one phosphonic acid, wherein the molar ratio of b) to a) is in the range from 0.0005 to 1.0. The phosphonic acid is, e.g., 1-hydroxyethane-1,1-diphosphonic acid. The absorption medium exhibits a reduced regeneration energy requirement compared with absorption media based on amines or amine/promoter combinations, without significantly decreasing the absorption capacity of the solution for acid gases.

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