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公开(公告)号：US20180311611A1
公开(公告)日：2018-11-01
申请号：US15763604
申请日：2016-09-28
Applicant: BASF SE
Inventor： Gerald VORBERG , Ralf NOTZ , Thomas INGRAM , Georg SIEDER , Torsten KATZ , Christian GRUENANGER , Peter DEGLMANN
CPC classification number: B01D53/1493 , B01D53/1468 , B01D2252/20405 , B01D2252/2041 , B01D2252/20415 , B01D2252/20426 , B01D2252/20431 , B01D2252/20484 , B01D2252/504 , B01D2252/602
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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公开(公告)号：US20180272271A1
公开(公告)日：2018-09-27
申请号：US15764138
申请日：2016-09-07
Applicant: BASF SE
Inventor： Thomas INGRAM , Georg SIEDER , Torsten KATZ , Gerald VORBERG , Ralf NOTZ
CPC classification number: B01D53/1493 , B01D53/1468 , B01D2252/20431 , B01D2252/20436 , B01D2252/20442 , B01D2252/20478 , B01D2252/20489 , B01D2252/504 , B01D2256/245 , C10L3/102 , C10L3/103 , C10L3/104 , C10L2290/541 , C10L2290/542
Abstract: The use of an amine of the formula (I) in which the R1 to R5 radicals are each as defined in the description, and an absorbent and a process for removing acidic gases from a fluid stream, especially for selectively removing hydrogen sulfide over carbon dioxide. The invention also relates to particular amines suitable for selective removal of hydrogen sulfide. Absorbents based on amines of the formula (I) have high selectivity, high loading capacity and good regeneration capacity.
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公开(公告)号：US20170282116A1
公开(公告)日：2017-10-05
申请号：US15506646
申请日：2015-08-20
Applicant: BASF SE
Inventor： Thomas INGRAM , Ralf NOTZ , Gerald VORBERG , Georg SIEDER , Gustavo Adolfo LOZANO MARTINEZ , Hogo Rafael GARCIA ANDARIA
CPC classification number: B01D53/1493 , B01D53/1425 , B01D53/1475 , B01D2252/2026 , B01D2252/2041 , B01D2252/20426 , B01D2252/20447 , B01D2252/20484 , B01D2252/502 , B01D2252/504 , B01D2252/602 , B01D2258/0283 , C10L3/104 , C10L3/12 , C10L2290/541 , Y02A50/2342 , Y02C10/06
Abstract: An absorbent for removing carbon dioxide from a fluid stream, comprising an aqueous solution a) of an amine of the general formula (I) in which R1, R2 and R3 are each independently selected from C1-4-alkyl and C1-4-hydroxyalkyl; each R4 is independently selected from hydrogen, C1-4alkyl and C1-4-hydroxyalkyl; each R5 is independently selected from hydrogen, C1-4-alkyl and C1-4-hydroxyalkyl; X is OH or NH(CR1R2R3); m is 2, 3, 4 or 5; n is 2, 3, 4 or 5; and o is 0 or 1; and b) at least one activator selected from b1) a sterically unhindered primary amine and/or a sterically unhindered secondary amine; and a carboanhydrase. The absorbent allows rapid absorption of carbon dioxide from fluid streams.
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