Agente de absorción y procedimiento para eliminar gases ácidos de flujos de gas, en particular de gases de humo

    公开(公告)号:ES2434745T3

    公开(公告)日:2013-12-17

    申请号:ES09769122

    申请日:2009-06-09

    Applicant: BASF SE

    Abstract: Agente de absorción para gases ácidos que contiene (A) una oligoamina de la fórmula general (I) en donde R1 designa un alquilo C1 a C3, R2 designa hidrógeno o un alquilo C1 a C3, n es igual a 2 hasta 6, y p es igual a 1 hasta 3; y (B) un derivado de piperazina de la fórmula general (II) en donde Ra designa hidrógeno, alquilo C1 a C3, -CH2CH2OH ó -(CH2)mNH2, donde m es igual a 1 hasta 3; y Rb designa hidrógeno, alquilo C1 a C3 ó -(CH2)nNH2 donde n es igual a 1 hasta 3, Rc designa hidrógeno, alquilo C1 aC3 ó -(CH2)oNH2, donde o es igual de 1 a 3, Rd designa hidrógeno, alquilo C1 a C3 ó -(CH2)pNH2, donde p es igual de1 a 3, y Re designa hidrógeno, alquilo C1 a C3 ó (CH2)qNH2, donde q es igual de 1 a 3, en donde la proporción en peso deoligoamina (A) con respecto al derivado de piperazina (B) m[oligoamina (A) / m[derivado de piperazina (B)] asciende de 0,2 a 25.

    REMOVAL OF ACIDIC GASES BY MEANS OF AN ABSORBENT COMPRISING A STRIPPING AID

    公开(公告)号:CA2764255A1

    公开(公告)日:2010-12-29

    申请号:CA2764255

    申请日:2010-06-21

    Applicant: BASF SE

    Abstract: A process for removing acidic gases from a fluid stream, in which a) the fluid stream is treated with an absorption liquid which comprises at least one amine, a stripping aid and water, said stripping aid being selected from water-miscible liquids whose boiling temperature at standard pressure is lower than that of water, b) the treated fluid stream is treated with a liquid aqueous phase in order to transfer entrained stripping aid at least partly to the aqueous phase, c) the laden aqueous phase is heated in order to at least partly drive out the stripping aid, and d) the aqueous phase thus regenerated is cooled and recycled at least partly into step b). The stripping aid promotes the regeneration of the absorbent by stripping. Emissions of the stripping aid via the treated fluid stream are avoided by washing the treated fluid stream with a liquid aqueous phase.

    Absorbent containing cyclic amines for removing acid gases

    公开(公告)号:AU2010209661B2

    公开(公告)日:2015-09-17

    申请号:AU2010209661

    申请日:2010-02-01

    Applicant: BASF SE

    Abstract: The invention relates to an absorbent for removing acid gases from a fluid flow, comprising an aqueous solution A) of at least one cyclic amine compound having exclusively tertiary amine groups and/or sterically hindered secondary amine groups, and B) of at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorbent comprises, for example, an aqueous solution of A) 1-hydroxyethyl-piperidine and/or triethylenediamine and B) piperazine. The absorbent is suited especially for separating carbon dioxide from flue gases and meets the following criteria: (i) sufficient capacity at low CO

    Removal of acidic gases by means of an absorbent comprising a stripping aid

    公开(公告)号:AU2010264803A1

    公开(公告)日:2012-02-02

    申请号:AU2010264803

    申请日:2010-06-21

    Applicant: BASF SE

    Abstract: A process for removing acidic gases from a fluid stream, in which a) the fluid stream is treated with an absorption liquid which comprises at least one amine, a stripping aid and water, said stripping aid being selected from water-miscible liquids whose boiling temperature at standard pressure is lower than that of water, b) the treated fluid stream is treated with a liquid aqueous phase in order to transfer entrained stripping aid at least partly to the aqueous phase, c) the laden aqueous phase is heated in order to at least partly drive out the stripping aid, and d) the aqueous phase thus regenerated is cooled and recycled at least partly into step b). The stripping aid promotes the regeneration of the absorbent by stripping. Emissions of the stripping aid via the treated fluid stream are avoided by washing the treated fluid stream with a liquid aqueous phase.

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