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公开(公告)号:US20180257022A1
公开(公告)日:2018-09-13
申请号:US15760257
申请日:2016-09-14
Applicant: BASF SE
Inventor: Thomas INGRAM , Georg SIEDER , Imke PREIBISCH
CPC classification number: B01D53/1493 , B01D53/1468 , B01D2252/2023 , B01D2252/2026 , B01D2252/20405 , B01D2252/20426 , B01D2252/20484 , B01D2252/2056 , B01D2252/40 , B01D2252/502 , B01D2252/504 , C10L3/102 , C10L3/103 , C10L3/104 , C10L2290/541 , C10L2290/542
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.
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12.
公开(公告)号:US20220152551A1
公开(公告)日:2022-05-19
申请号:US17431872
申请日:2020-02-14
Applicant: BASF SE
Inventor: Martin ERNST , Thomas INGRAM , Gerald VORBERG , Georg SIEDER
IPC: B01D53/14 , C10L3/10 , C07D295/13
Abstract: A process for removal of acid gases from fluid stream, wherein the fluid stream is brought into contact with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising a diluent and a compound of the general formula (I) wherein R1 is selected from C1-C8-alkyl and C2-C8-hydroxyalkyl; R2 is selected from hydrogen and C1-C8-alkyl; R3 is selected from hydrogen and C1-C8-alkyl; R4 is selected from hydrogen and C1-C8-alkyl; R5 is C1-C8-alkyl; with the proviso that at least one of the following conditions (i) and (ii) is met: (i) R5 is C3-C8-alkyl bound to the nitrogen atom via a secondary or tertiary carbon atom; (ii) when R4 is hydrogen, R3 is C1-C8-alkyl; or when R4 is C1-C8-alkyl, at least one of R2 and R3 is C1-C8-alkyl; and n is an integer from 0 to 6. Further provided is an absorbent for the absorption of acid gases from a fluid stream, comprising a diluent and a compound of the general formula (I) as defined above, as well as the use of a compound of the general formula (I) as defined above for removal of acid gases from a fluid stream. The absorbents are useful for the selective removal of hydrogen sulfide from fluid streams and have high acid gas loading capacity, high stability, and low volatility.
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公开(公告)号:US20200269187A1
公开(公告)日:2020-08-27
申请号:US16643665
申请日:2018-08-30
Applicant: BASF SE , ExxonMobil Research and Engineering Company
Inventor: Martin ERNST , Gerald VORBERG , Thomas INGRAM , Georg SIEDER , Carla PEREIRA
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.
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公开(公告)号:US20190388829A1
公开(公告)日:2019-12-26
申请号:US16556903
申请日:2019-08-30
Applicant: BASF SE
Inventor: Gerald VORBERG , Ralf NOTZ , Thomas INGRAM , Georg SIEDER , Torsten KATZ
Abstract: An absorbent for selective removal of hydrogen sulfide over carbon dioxide from a fluid stream comprises an aqueous solution of a) a tertiary amine, b) a sterically hindered secondary amine of the general formula (I) in which R1 and R2 are each independently selected from C1-4-alkyl and C1-4-hydroxyalkyl; R3, R4, R5 and R6 are each independently selected from hydrogen, C1-4-alkyl and C1-4-hydroxyalkyl, with the proviso that at least one R4 and/or R5 radical on the carbon atom bonded directly to the nitrogen atom is C1-4-alkyl or C1-4-hydroxyalkyl when R3 is hydrogen; x and y are integers from 2 to 4 and z is an integer from 1 to 4; where the molar ratio of b) to a) is in the range from 0.05 to 1.0, and c) an acid in an amount, calculated as neutralization equivalent relative to the protonatable nitrogen atoms in a) and b), of 0.05 to 15.0%. One preferred amine of the formula I is 2-(2-tert-butylaminoethoxy)ethanol. The absorbent allows a defined H2S selectivity to be set at pressures of the kind typical in natural gas processing.
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公开(公告)号:US20190381448A1
公开(公告)日:2019-12-19
申请号:US16484860
申请日:2018-02-09
Applicant: BASF SE , ExxonMobil Research and Engineering Company
Inventor: Thomas INGRAM , Martin ERNST , Gerald VORBERG , Alexander PANCHENKO , Sophia EBERT , Thomas Wesley HOLCOMBE , Michael SISKIN , Carla PEREIRA , Georg SIEDER
Abstract: In a process for removal of acid gases from a fluid stream the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent. The absorbent comprises a diluent and a compound of the general formula (I) wherein R1 is C1-C3-alkyl; R2 is C1-C3-alkyl; R3 is selected from hydrogen and C1-C3-alkyl; and R4 is selected from hydrogen and C1-C3-alkyl
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公开(公告)号:US20180272270A1
公开(公告)日:2018-09-27
申请号:US15763981
申请日:2016-09-12
Applicant: BASF SE
Inventor: Thomas INGRAM , Georg SIEDER
IPC: B01D53/14 , C07C217/08
CPC classification number: B01D53/1493 , B01D53/1425 , B01D53/1468 , B01D2252/2026 , B01D2252/2041 , B01D2252/20426 , B01D2252/20431 , B01D2252/20489 , B01D2252/2056 , B01D2252/40 , B01D2252/502 , B01D2252/504 , B01D2252/60 , C07C217/08
Abstract: A compound of the general formula (I) in which R1 to R8, x, y and z are as defined in the description. Also described is an absorbent comprising a solution of the compound, and the use thereof and a process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with the absorbent. The compounds of the general formula (I) are notable for thermal stability and low volatility. Absorbents based on the compounds are notable for high loading capacity, high cyclic capacity and good regeneration capacity. The solutions of the compounds in nonaqueous solvents are notable for low viscosities.
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公开(公告)号:US20240042375A1
公开(公告)日:2024-02-08
申请号:US17641845
申请日:2020-08-31
Applicant: BASF SE
Inventor: Thomas Wesley HOLCOMBE , Thomas INGRAM , Alexander PANCHENKO , Martin ERNST , Georg SIEDER
IPC: B01D53/14 , B01D53/52 , B01D53/78 , B01D53/96 , C07C319/20
CPC classification number: B01D53/1493 , B01D53/1468 , B01D53/1425 , B01D53/52 , B01D53/78 , B01D53/96 , C07C319/20 , B01D2252/602 , B01D2257/304 , B01D2252/20405 , B01D2252/20484
Abstract: A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising at least one diluent and a compound of the general formula (I) wherein R1 is C1-C3-alkyl; R2 is C1-C3-alkyl; R3 is selected from hydrogen and C1-C3-alkyl; R4 is selected from hydrogen and C1-C3-alkyl and n is an integer in the range of 1 to 4.
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公开(公告)号:US20200164303A1
公开(公告)日:2020-05-28
申请号:US16612921
申请日:2018-05-14
Applicant: BASF SE , ExxonMobil Research and Engineering Company
Inventor: Martin ERNST , Gerald VORBERG , Georg SIEDER , Thomas INGRAM , Virginia REINER , Carla PEREIRA , Michael SISKIN
IPC: B01D53/14 , C10L3/10 , C07C217/08 , C07C213/02
Abstract: An absorbent for the selective removal of hydrogen sulfide from a fluid stream comprising carbon dioxide and hydrogen sulfide, wherein the absorbent contains an aqueous solution, comprising: a) an amine or a mixture of amines of the general formula (I) wherein R1 is C1-C5-alkyl; R2 is C1-C5-alkyl; R3 is selected from hydrogen and C1-C5-alkyl; x is an integer from 2 to 10; and b) an ether or a mixture of ethers of the general formula (II): R4—[O—CH2—CH2]y—OH; wherein R4 is C1-C5-alkyl; and y is an integer from 2 to 10; wherein R1 and R4 are identical; wherein the mass ratio of b) to a) is from 0.08 to 0.5. The absorbent is suitable for the selective removal of hydrogen sulfide from a fluid stream comprising carbon dioxide and hydrogen sulfide. 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 is easily obtainable.
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19.
公开(公告)号:US20190143262A1
公开(公告)日:2019-05-16
申请号:US16095970
申请日:2017-04-05
Applicant: BASF SE , EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
Inventor: Thomas INGRAM , Genald VORBERGH , Martin ERNST , Carla PEREIRA , Michael SISKIN
IPC: B01D53/14
CPC classification number: B01D53/1493 , B01D53/1425 , B01D53/1462 , B01D53/1468 , B01D2252/20452 , B01D2252/20489 , B01D2257/304
Abstract: A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent comprising a compound of the general formula (I), wherein R1 and R2 are independently C1-C4-alkyl; R3 is selected from hydrogen and C1-C4-alkyl, R4, R5 and R6 are independently selected from hydrogen and C1-C4-alkyl; x and y are integers from 2 to 4 and z is an integer from 1 to 3, to obtain a treated fluid stream and a laden absorbent. The process allows for a high cyclic capacity while the compounds of the absorbent have a reduced tendency to foaming and low volatility.
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公开(公告)号:US20190126194A1
公开(公告)日:2019-05-02
申请号:US16306784
申请日:2017-06-08
Applicant: BASF SE
Inventor: Thomas INGRAM , Gustavo Adolfo LOZANO MARTINEZ , Alexander PANCHENKO , Martin ERNST
Abstract: 1,3-Diaminocyclohexanes of the general formula (I) are suitable for removing carbon dioxide from fluid streams where the radicals R are each, independently of one another, C1-4-alkyl; and n is an integer from 0 to 3. The amino groups of the 1,3-diaminocyclohexane are preferably arranged in trans position relative to one another in the plane of the cyclohexane ring. Absorption media for removing carbon dioxide from fluid streams comprise a) a 1,3-diaminocyclohexane of the general formula (I) and b) optionally at least one tertiary amine and/or a sterically hindered primary or secondary amine. In a process for removing carbon dioxide from fluid streams, the absorption medium is brought into contact with a fluid stream.
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