Método para la remoción selectiva de sulfuro de hidrógeno

    公开(公告)号:CO2018003674A2

    公开(公告)日:2018-08-10

    申请号:CO2018003674

    申请日:2018-04-05

    Applicant: BASF SE

    Abstract: RESUMEN DE LA INVENCIÓN Un absorbente para la remoción selectiva de sulfuro de hidrógeno de una corriente de fluido que comprende dióxido de carbono y sulfuro de hidrógeno comprende a) un compuesto de amina de la fórmula (I), en donde X, R1 a R7, x, y y z son como se definen en la descripción; y b) un solvente no acuoso; donde el absorbente comprende menos del 20 % en peso de agua. Además, se describe un proceso para remover selectivamente sulfuro de hidrógeno de una corriente de fluido que comprende dióxido de carbono y sulfuro de hidrógeno, en donde la corriente de fluido se contacta con el absorbente. El absorbente se caracteriza por una alta capacidad de carga, una alta capacidad cíclica, una buena capacidad de regeneración y una baja viscosidad. (I).

    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE

    公开(公告)号:SG11201801360PA

    公开(公告)日:2018-04-27

    申请号:SG11201801360P

    申请日:2016-09-28

    Applicant: BASF SE

    Abstract: An absorbent for selective removal of hydrogen sulfide from a fluid stream comprises an aqueous solution comprising a) a tertiary amine; b) an aminic pH promoter selected from the compounds mentioned in the description; where the molar ratio of b) to a) is in the range from 0.05 to 1.0; and c) an acid having a pKA of less than 6 in such an amount that the pH of the aqueous solution measured at 120° C. is 7.9 to less than 8.8. Also described is a process for removing acidic gases from a fluid stream, in which the fluid stream is contacted with the absorbent. The absorbent is notable for a low regeneration energy.

    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.

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