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1.发明授权公开(公告)号：US12053738B2
公开(公告)日：2024-08-06
申请号：US17537654
申请日：2021-11-30
Applicant: ExxonMobil Technology and Engineering Company , BASF
Inventor： Carla S. Pereira , Michael Siskin , Thomas Ingram , Gerald Vorberg , Martin Ernst
CPC classification number: B01D53/1493 , B01D53/1425 , B01D53/1468 , B01D53/18 , C10L3/10 , C10L3/103 , B01D2252/204 , B01D2252/20431 , B01D2252/20478 , B01D2252/20489 , B01D2257/304 , B01D2257/504 , C10L2290/542 , Y02C20/40
Abstract: A process for selectively separating H2S from a gas mixture which also comprises CO2 is disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The H2S/CO2 selectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO2+H2S)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.
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2.发明公开公开(公告)号：US20230226483A1
公开(公告)日：2023-07-20
申请号：US18002519
申请日：2021-07-06
Inventor： Carla S. Pereira , Jenny P. Seagraves , P. Scott Northrop , Michael Siskin , Thomas Ingram , Gerald Vorberg , Martin Ernst , Georg K. Sieder
CPC classification number: B01D53/1425 , B01D53/1468 , B01D53/1493 , B01D53/1475 , B01D53/52 , B01D53/62 , B01D53/78 , B01D53/96 , B01D2257/304 , B01D2257/504 , B01D2252/2041 , B01D2252/20405 , B01D2252/20426 , B01D2252/20452 , B01D2252/20468 , B01D2252/20484 , B01D2252/60
Abstract: Capture of hydrogen sulfide from a gas mixture may be accomplished using an aqueous solution comprising an amine. Certain sterically hindered amines may selectively form a reaction product with hydrogen sulfide under kinetically controlled contacting conditions and afford a light phase and a heavy phase above a critical solution temperature, wherein the hydrogen sulfide may be present in either phase. Upon separation of the light phase from the heavy phase, processing of one of the phases may take place to remove hydrogen sulfide therefrom. Recycling of the amine to an absorber tower may then take place to promote capture of additional hydrogen sulfide.
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公开(公告)号：US11369919B2
公开(公告)日：2022-06-28
申请号：US16556903
申请日：2019-08-30
Applicant: BASF SE
Inventor： Gerald Vorberg , Ralf Notz , Thomas Ingram , Georg Sieder , Torsten Katz
IPC: B01D53/52 , B01D53/14 , B01D53/78 , B01D53/96 , C07C217/08 , C07C217/28 , C07C217/42 , C10L3/10
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：US20200089827A1
公开(公告)日：2020-03-19
申请号：US16135465
申请日：2018-09-19
Applicant: BASF SE
Inventor： Agnes Dittel , Ralf Notz , Sergey Vorobyev , Rainer Herget , Torsten Katz , Gerald Vorberg , Kim Hoeffken
Abstract: The present invention is related to a method for determination of unit operations of a chemical plant for acid gas removal, the method carried out by a computer or a distributed computer system and the method comprising the steps of: providing a first set of parameters for the unit operations; providing a second set of parameters for the unit operations based on the provided first set of parameters and based on data retrieved from a database; determining a digital model of the chemical plant based on the first set of parameters and the second set of parameters, wherein the digital model comprises a system of equations defining the unit operations of the chemical plant; selecting starting points for an equation-based solution method of the system of equations, wherein the starting points are at least partially selected from the: (i) the first set of parameters; (ii) the second set of parameters; and (iii) the data retrieved from the database; determining resultant settings for the unit operations of the chemical plant using the equation-based solution method for the system of equations initialized by the selected starting points.
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公开(公告)号：US11458433B2
公开(公告)日：2022-10-04
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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Patent Agency Ranking
公开(公告)号：US10279309B2
公开(公告)日：2019-05-07
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 , Hugo Rafael Garcia Andarcia
IPC: C07C217/08 , C07C217/28 , C07C217/42 , B01D53/14 , B01D53/62 , B01D53/78 , B01D53/96 , C10L3/10 , C10L3/12
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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7.发明申请公开(公告)号：US20180229180A1
公开(公告)日：2018-08-16
申请号：US15955182
申请日：2018-04-17
Applicant: ExxonMobil Research and Engineering Company , BASF
Inventor： Carla S. Pereira , Michael Siskin , Thomas Ingram , Gerald Vorberg , Martin Ernst
CPC classification number: B01D53/1493 , B01D53/1425 , B01D53/1468 , B01D53/18 , B01D2252/204 , B01D2252/20431 , B01D2252/20478 , B01D2252/20489 , B01D2257/304 , B01D2257/504 , C10L3/10 , C10L3/103 , C10L2290/542 , Y02C10/06
Abstract: A process for selectively separating H2S from a gas mixture which also comprises CO2 is disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The H2S/CO2 selectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO2+H2S)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.
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8.发明申请公开(公告)号：US20220126235A1
公开(公告)日：2022-04-28
申请号：US17537654
申请日：2021-11-30
Applicant: ExxonMobil Research and Engineering Company , BASF
Inventor： Carla S. Pereira , Michael Siskin , Thomas Ingram , Gerald Vorberg , Martin Ernst
Abstract: A process for selectively separating H2S from a gas mixture which also comprises CO2is disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The H2S/CO2 selectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO2+H2S)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.
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公开(公告)号：US11241652B2
公开(公告)日：2022-02-08
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 , C07C13/02 , C07C17/08 , C10L3/10 , C07C213/02 , C07C217/08
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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公开(公告)号：US11130094B2
公开(公告)日：2021-09-28
申请号：US16594526
申请日：2019-10-07
Applicant: BASF SE
Inventor： Thomas Ingram , Georg Sieder , Torsten Katz , Gerald Vorberg , Ralf Notz
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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