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    ABSORBENT AND PROCESS FOR SELECTIVELY REMOVING HYDROGEN SULFIDE
    41.
    发明专利
    ABSORBENT AND PROCESS FOR SELECTIVELY REMOVING HYDROGEN SULFIDE 未知

    公开(公告)号：CA3074650A1

    公开(公告)日：2019-03-07

    申请号：CA3074650

    申请日：2018-08-30

    Applicant: EXXONMOBIL RES & ENG CO ,  BASF SE

    Inventor： ERNST MARTIN ,  VORBERG GERALD ,  INGRAM THOMAS ,  SIEDER GEORG ,  PEREIRA CARLA

    IPC: B01D53/14

    Abstract: An absorbent for the selective removal of hydrogen sulfide over carbon dioxide from a fluid stream, wherein the absorbent contains an aqueous solution, comprising an amine of formula (I) and/or an amine of formula (II) wherein U-V-W is CH-O-CHR5, N-CO-CHR5 or N-CO-NR5; U'-V'-W is C-O-CR5; R1 is independently C1-C5-alkyl; R2 is selected from hydrogen and C1-C5-alkyl; R3 is independently selected from hydrogen and C1-C5-alkyl; R4 is independently selected from hydrogen and C1-C5-alkyl; R5 is selected from hydrogen, C1-C5-alkyl, (C1-C5- alkoxy)-C1-C5-alkyl, and hydroxy-C1-C5-alkyl; and x is an integer from 1 to 10. The absorbent has a reduced tendency for phase separation at temperatures falling within the usual range of regeneration temperatures for the aqueous amine mixtures and a low volatility in aqueous solvents.

    ABSORPTION AGENT AND A METHOD FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE
    43.
    发明专利
    ABSORPTION AGENT AND A METHOD FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE 未知

    公开(公告)号：SG11201801195SA

    公开(公告)日：2018-04-27

    申请号：SG11201801195S

    申请日：2016-09-14

    Applicant: BASF SE

    Inventor： INGRAM THOMAS ,  SIEDER GEORG ,  PREIBISCH IMKE

    IPC: B01D53/14 ,  C10L3/10

    Abstract: An absorbent for selective removal of hydrogen sulfide from a fluid stream comprising carbon dioxide and hydrogen sulfide, which comprises a) 10% to 70% by weight of at least one sterically hindered secondary amine having at least one ether group and/or at least one hydroxyl group in the molecule; b) at least one nonaqueous solvent having at least two functional groups selected from ether groups and hydroxyl groups in the molecule; and c) optionally a cosolvent; where the hydroxyl group density of the absorbent ρabs is in the range from 8.5 to 35 mol(OH)/kg. Also described is a process for selectively removing hydrogen sulfide from a fluid stream comprising carbon dioxide and hydrogen sulfide, wherein the fluid stream is contacted with the absorbent. The absorbent features good regeneration capacity and high cyclic acid gas capacity.

    CYCLIC AMINE FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE
    47.
    发明专利
    CYCLIC AMINE FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE 未知

    公开(公告)号：CA3000274A1

    公开(公告)日：2017-04-06

    申请号：CA3000274

    申请日：2016-09-07

    Applicant: BASF SE

    Inventor： INGRAM THOMAS ,  SIEDER GEORG ,  KATZ TORSTEN ,  VORBERG GERALD ,  NOTZ RALF

    IPC: B01D53/14 ,  C10L3/10

    Abstract: The invention relates to the use of an amine of formula (I) where the groups R1 to R5 are defined as they are in the description, as well as to an absorption agent and a method for removing acid gases from a fluid flow, particularly for selectively removing hydrogen sulphide over carbon dioxide. The invention also relates to certain amines suitable for selectively removing hydrogen sulphide. Absorption agents based on the amines of formula (I) have a high degree of selectivity, high loading capacity and good regeneration capacity.

    Retention of amines in the removal of acid gases by means of amine absorbents
    48.
    发明专利
    Retention of amines in the removal of acid gases by means of amine absorbents 未知

    公开(公告)号：AU2012233664B2

    公开(公告)日：2016-06-23

    申请号：AU2012233664

    申请日：2012-03-30

    Applicant: BASF SE

    Inventor： SIEDER GEORG ,  NOTZ RALF ,  GARCIA ANDARCIA HUGO RAFAEL ,  SCHMIDT SANDRA ,  MOSER PETER

    IPC: B01D53/14 ,  B01D53/62

    Abstract: In a method for removing acid gases from a fluid stream, a) the fluid stream is treated in an absorption zone with an absorbent that comprises an aqueous solution of at least one amine, b) the treated fluid stream is conducted through at least two wash zones and is treated with a non-acidic aqueous phase in order to transfer entrained amine and/or entrained amine decomposition products at least in part into the aqueous phase, wherein aqueous phase is recycled through at least one wash zone and aqueous phase is conducted through at least one wash zone without recycling. The method permits an efficient retention of amines from the treated fluid streams.

    Absorbent containing cyclic amines for removing acid gases
    50.
    发明专利
    Absorbent containing cyclic amines for removing acid gases 未知

    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

    Inventor： GARCIA ANDARCIA HUGO RAFAEL ,  LICHTFERS UTE ,  SIEDER GEORG ,  SPUHL OLIVER ,  BRUGHMANS STEVEN

    IPC: B01D53/14

    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

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