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    ACID GAS ENRICHMENT METHOD AND SYSTEM
    11.
    发明专利
    ACID GAS ENRICHMENT METHOD AND SYSTEM 未知

    公开(公告)号：CA3007965A1

    公开(公告)日：2017-06-15

    申请号：CA3007965

    申请日：2016-12-07

    Applicant: BASF SE

    Inventor： INGRAM THOMAS ,  VORBERG GERALD ,  SIEDER GEORG

    IPC: B01D53/14 ,  B01D53/86 ,  C01B17/04 ,  C10L3/10

    Abstract: The invention relates to a method for treating an H2S and CO2-containing fluid flow, wherein a) the fluid flow is treated with a first sub-flow (3.01) of a regenerated H2S-selective absorbent in a first absorber (A1) at a pressure of 10 to 150 bar, and a treated fluid flow (3.03) and an H2S-loaded absorbent (3.04) are obtained; b) the H2S-loaded absorbent is heated by means of an indirect heat exchange (3.07) with a regenerated H2S-selective absorbent (3.08); c) the heated H2S-loaded absorbent (3.09) is expanded to a pressure of 1.2 to 10 bar in a low-pressure expansion container (LPF), and a first CO2-enriched exhaust gas and a partially regenerated absorbent (3.11) are obtained; d) the partially regenerated absorbent (3.11) is regenerated in a desorption column (D), and an H2S-enriched exhaust gas (3.23) and a regenerated absorbent (3.08) are obtained; e) the H2S-enriched exhaust gas (3.23) is supplied to a Claus unit (CL), the exhaust gas of the Claus unit is supplied to a hydrogenation unit (HY), and a hydrogenated Claus final gas is obtained; f) the hydrogenated Claus final gas and the first CO2-enriched exhaust gas are treated with a second sub-flow (3.18) of the regenerated H2S-selective absorbent (3.17) in a second absorber (TGA) at a pressure of 1 to 4 bar, and a second CO2-enriched exhaust gas (3.25) and a second H2S-loaded absorbent (3.02) are obtained; and g) the second H2S-loaded absorbent is conducted into the first absorber (A1). The invention further relates to a system which is suitable for carrying out the method. The invention is characterized by a low energy requirement.

    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE
    12.
    发明专利
    ABSORBENT FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE 未知

    公开(公告)号：CA3000037A1

    公开(公告)日：2017-04-06

    申请号：CA3000037

    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: The invention relates to an absorbent for the selective removal of hydrogen sulfide from a fluid stream, containing an aqueous solution, comprising a) a tertiary amine; b) an amine pH promoter, selected from the compounds mentioned in the description; wherein the molar ratio between b) and a) is in the range of 0.05 to 1.0; and c) an acid having a pKa value of less than 6 in an amount such that the pH value of the aqueous solution is 7.9 to less than 8.8 when measured at 120 °C. Furthermore, the invention relates to a method for the removal of acid gases from a fluid stream, in which the fluid stream is brought into contact with the absorbent. The absorbent is characterized by a low regeneration energy.

    ABSORBENT FOR SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM A FLUID STREAM
    19.
    发明专利
    ABSORBENT FOR SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM A FLUID STREAM 未知

    公开(公告)号：CA2959700C

    公开(公告)日：2022-11-08

    申请号：CA2959700

    申请日：2015-08-20

    Applicant: BASF SE

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

    IPC: B01D53/14 ,  C10L3/10

    Abstract: An absorbent for selective removal of hydrogen sulfide 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 0.3 to 0.7, and c) an acid in an amount, calculated as neutralization equivalents relative to the protonatable nitrogen atoms in a) and b), of 1.0 to 9.0%. One preferred amine of the formula 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. In addition, a process for removing acidic gases from a fluid stream having a partial H2S pressure of at least 0.1 bar and/or a partial CO2 pressure of at least 0.2 bar by means of this absorbent.

    АБСОРБЕНТ И СПОСОБ СЕЛЕКТИВНОГО УДАЛЕНИЯ СУЛЬФИДА ВОДОРОДА
    20.
    发明专利
    АБСОРБЕНТ И СПОСОБ СЕЛЕКТИВНОГО УДАЛЕНИЯ СУЛЬФИДА ВОДОРОДА 未知

    公开(公告)号：EA038670B1

    公开(公告)日：2021-10-01

    申请号：EA201992675

    申请日：2018-05-14

    Applicant: BASF SE ,  EXXONMOBIL RES & ENGINEERING COMPANY

    Inventor： ERNST MARTIN ,  VORBERG GERALD ,  SIEDER GEORG ,  INGRAM THOMAS ,  REINER VIRGINIA ,  PEREIRA CARLA ,  SISKIN MICHAEL

    Abstract: Абсорбентдляселективногоудалениясульфидаводородаизпотокатекучейсреды, содержащегодиоксидуглеродаи сульфидводорода, причемуказанныйабсорбентсодержитводныйраствор, содержащийа) аминилисмесьаминовобщейформулы (I)где R1 означает C1-C5-алкил; R2 означает C1-C5-алкил; R3 выбранизводородаи C1-C5-алкила; хозначаетцелоечислоот 2 до 10; и b) простойэфирилисмесьпростыхэфировобщейформулы (II)где R4 означает C1-C5-алкил; ау означаетцелоечислоот 2 до 10; где R1 и R4 являютсяидентичными; приэтоммассовоеотношение b) к a) составляетот 0,08 до 0,5. Указанныйабсорбентпригодендляселективногоудалениясульфидаводородаизпотокатекучейсреды, содержащегодиоксидуглеродаи сульфидводорода. Такойабсорбентимеетпониженнуюсклонностьк фазовомуразделениюпритемпературахв обычномдиапазонетемпературрегенерациидляводныхсмесейаминови можетбытьлегкополучен.

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