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    PROCESS FOR SEPARATING OFF ACID GASES FROM A WATER-COMPRISING FLUID STREAM
    42.
    发明专利
    PROCESS FOR SEPARATING OFF ACID GASES FROM A WATER-COMPRISING FLUID STREAM 未知

    公开(公告)号：CA2883301A1

    公开(公告)日：2014-03-13

    申请号：CA2883301

    申请日：2013-08-19

    Applicant: BASF SE

    Inventor： KATZ TORSTEN ,  BARTLING KARSTEN

    IPC: B01D53/14

    Abstract: A method for separating acid gases from an aqueous flow of fluid is described, according to which method a) the aqueous flow of fluid is brought into contact in an absorption area with an absorbent which contains at least one amine, wherein a deacidified flow of fluid and an absorbent charged with acid gases are obtained; b) the deacidified flow of fluid is brought into contact in a washing area with an aqueous washing fluid in order to transfer, at least partially, carried amine into the washing fluid, wherein a deaminated, deacidified flow of fluid and an amine-charged washing fluid are obtained; c) the deaminated, deacidified flow of fluid is cooled downstream of the washing area, wherein an absorber top condensate is condensed out of the deaminated, deacidified flow of fluid; d) the charged absorbent is guided into a desorption area in which the acid gases are at least partially released, wherein a regenerated absorbent and desorbed acid gases are obtained; e) the regenerated absorbents are guided back into the absorption area in order to form an absorbent cycle; f) the amine-charged washing fluid and the absorber top condensate are introduced into the absorbent cycle; and g) the desorbed acid gases are guided through a reinforcement area and the acid gases coming out of the top of the reinforcement area are cooled, in order to condense a desorber top condensate out of the acid gases, which desorber top condensate is partially guided back into the reinforcement area and is partially guided out of the method. The method allows an efficient retention of amines from the treated flows of fluid while maintaining the water balance of the acid gas removal installation.

    PROCESS FOR RECOVERY OF CARBON DIOXIDE FROM A FLUID STREAM, IN PARTICULAR FROM SYNGAS
    44.
    发明专利
    PROCESS FOR RECOVERY OF CARBON DIOXIDE FROM A FLUID STREAM, IN PARTICULAR FROM SYNGAS 未知

    公开(公告)号：CA2761895A1

    公开(公告)日：2010-12-02

    申请号：CA2761895

    申请日：2010-05-25

    Applicant: BASF SE ,  JGC CORP

    Inventor： KATZ TORSTEN ,  SIEDER GEORG ,  TANAKA KOJI

    IPC: C10K1/08 ,  C01B32/50

    Abstract: A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapour entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange. The invention provides a two-stage carbon dioxide recovery process wherein the overall energy required for carbon dioxide recovery is reduced and/or wherein at least part of the carbon dioxide is recovered at a pressure higher than atmospheric pressure so as to reduce the energy required for compression of the carbon dioxide, e. g., for sequestration. Also disclosed is a plant for removing carbon dioxide from a fluid.

    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE
    49.
    发明专利
    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE 未知

    公开(公告)号：ZA201802683B

    公开(公告)日：2019-07-31

    申请号：ZA201802683

    申请日：2018-04-23

    Applicant: BASF SE

    Inventor： VORBERG GERALD ,  NOTZ RALF ,  INGRAM THOMAS ,  SIEDER GEORG ,  KATZ TORSTEN ,  GRUENANGER CHRISTIAN ,  DEGLMANN PETER

    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.

    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE
    50.
    发明专利
    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE 未知

    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

    Inventor： VORBERG GERALD ,  NOTZ RALF ,  INGRAM THOMAS ,  SIEDER GEORG ,  KATZ TORSTEN ,  GRUENANGER CHRISTIAN ,  DEGLMANN PETER

    IPC: B01D53/14

    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.

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