91.
    发明专利
    未知

    公开(公告)号:DE502006005122D1

    公开(公告)日:2009-11-26

    申请号:DE502006005122

    申请日:2006-06-01

    Applicant: BASF SE

    Abstract: The invention relates to a process for removing salts from an alkanolic reaction mixture which is obtained in the preparation of alkoxycarbonylaminotriazines and comprises at least one alkoxycarbonylaminotriazine, at least one cyclic and/or acyclic carbonic ester, at least one C 1 -C 13 -alkanol which optionally comprises one or two oxygen atoms as ether bonds and is optionally substituted by C 1 -C 4 -alkyl and/or hydroxyl, and also at least one alkali metal alkoxide or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, in which salts are removed from the reaction mixture by ion exchange over a cation exchanger and/or anion exchanger.

    Absorbente y proceso para remover selectivamente sulfuro de hidrógeno

    公开(公告)号:ES2890939T3

    公开(公告)日:2022-01-25

    申请号:ES18758898

    申请日:2018-08-30

    Abstract: Un proceso para la remoción selectiva de sulfuro de hidrógeno sobre dióxido de carbono de una corriente de fluido que comprende dióxido de carbono y sulfuro de hidrógeno, en que la corriente de fluido hace contacto con un absorbente, cuyo absorbente contiene una solución acuosa, que comprende una amina de fórmula (I) y opcionalmente una amina de fórmula (II) **(Ver fórmula)* en donde U-V-W es CH-O-CHR5, N-CO-CHR5 o N-CO-NR5; U'-V'-W' es C-O-CR5; R1 es independientemente alquilo de C1-C5; R2 se selecciona de hidrógeno y alquilo de C1-C5; R3 se selecciona independientemente de hidrógeno y alquilo de C1-C5; R4 se selecciona independientemente de hidrógeno y alquilo de C1-C5; R5 se selecciona de hidrógeno, alquilo de C1-C5, alquilo de C1-C5 (alcoxi de C1-C5), y alquilo de hidroxi-C1-C5; y x es un entero de 1 a 10, en donde el absorbente comprende una cantidad total de 15 % a 70 % en peso de la amina de fórmula (I) y (II), con base en el peso total del absorbente, en donde se obtienen un absorbente de carga y una corriente de fluido tratado.

    ЦИКЛИЧЕСКИЙ АМИН ДЛЯ СЕЛЕКТИВНОГО УДАЛЕНИЯ СЕРОВОДОРОДА

    公开(公告)号:EA036848B1

    公开(公告)日:2020-12-28

    申请号:EA201890823

    申请日:2016-09-07

    Applicant: BASF SE

    Abstract: Изобретениекасаетсяспособаселективногоудалениясероводородапоотношениюк диоксидууглеродаизпотокатекучейсреды, прикоторомпотоктекучейсредыобъединяютв абсорберес абсорбентом, которыйсодержитаминформулы (I)где R5 выбраниз NR6R7 и OR10; R6 выбранизводорода, C1-C5-алкилаи C2-C5-гидроксиалкила, R7 выбраниз C1-C5-алкилаи C2-C5-гидроксиалкилаи R10 выбранизводорода, C1-C5-алкилаи C2-C5-гидроксиалкила; причемполучаюточищенныйпотоктекучейсредыи насыщенныйабсорбент; причемТакженастоящееизобретениекасаетсяпримененияуказанногоаминаформулы (I) дляселективногоудалениясероводородапоотношениюк диоксидууглеродаизпотокатекучейсредыи абсорбентадляселективногоудалениясероводородаизпотокатекучейсреды, содержащегодиоксидуглеродаи сероводород.

    PROCESS FOR REMOVAL OF ACID GASES FROM A FLUID STREAM WITH A LIQUID ABSORBENT COMPRISING A PIPERAZINE RING

    公开(公告)号:CA3130537A1

    公开(公告)日:2020-08-27

    申请号:CA3130537

    申请日:2020-02-14

    Applicant: BASF SE

    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.

    Eliminación de gases ácidos de las corrientes de fluido que contienen vapor de agua

    公开(公告)号:ES2690087T3

    公开(公告)日:2018-11-19

    申请号:ES13706012

    申请日:2013-02-26

    Applicant: BASF SE

    Abstract: Un proceso para eliminar gases ácidos de una corriente de fluido que contiene vapor de agua, cuyos gases ácidos comprenden al menos CO2, el proceso que comprende a) proporcionar un líquido de absorción que no es completamente miscible con agua, líquido de absorción que comprende una base nitrogenada y un ácido débil; b) tratar la corriente de fluido en una zona de absorción con el líquido de absorción para obtener una corriente de fluido tratada empobrecida en gas ácido y un líquido de absorción cargado con gas ácido; c) dirigir la corriente de fluido tratada a una zona de rehidratación y tratar la corriente de fluido con un líquido acuoso para volatilizar al menos parte del líquido acuoso; d) regenerar el líquido de absorción cargado para expulsar los gases ácidos al menos en parte y obtener un líquido de absorción regenerado, y dirigir el líquido de absorción regenerado a la etapa b); y e) separar, del líquido de absorción, un líquido acuoso que se ha condensado en la zona de absorción, y dirigir el líquido acuoso a la etapa c), donde separar el líquido acuoso comprende someter el líquido de absorción cargado a separación de fase líquido-líquido para separar el líquido acuoso del mismo.

    PROCESS FOR RECOVERY OF CARBON DIOXIDE FROM A FLUID STREAM, IN PARTICULAR FROM SYNGAS

    公开(公告)号:CA2761895C

    公开(公告)日:2018-08-28

    申请号:CA2761895

    申请日:2010-05-25

    Applicant: BASF SE JGC CORP

    Abstract: A process for removing carbon dioxide from a fluid comprising the steps of: treating the fluid by contacting it with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone depressurizing the absorbent (3 to 1 bar (absolute)) to release a first stream of CO2 and yield a partially regenerated absorbent; which is recycled in a first stream into the first absorption zone; heating (at 3.5 to 10 bar (absolute))a second stream of the partially regenerated absorbent to release a second stream of CO2 and yield a regenerated absorbent; which is recycled into the second absorption zone; condensing water vapour entrained in the second stream of CO2 by cooling the second stream of CO2 and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange; and introducing the second stream of CO2 into a CO2 pressurizing unit.

    Absorption agent and a method for selectively removing hydrogen sulphide

    公开(公告)号:AU2016333399A1

    公开(公告)日:2018-03-29

    申请号:AU2016333399

    申请日:2016-09-14

    Applicant: BASF SE

    Abstract: The invention relates to an absorption agent for selectively removing hydrogen sulphide from a fluid flow containing carbon dioxide and hydrogen sulphide, containing a) 10 to 70 wt.% of at least one sterically-hindered secondary amine that has at least one ether group and/or at least one hydroxyl group in the molecule; b) at least one non-aqueous solvent that has at least two functional groups, selected from ether groups and hydroxyl groups, in the molecule, and c) a cosolvent where appropriate; wherein the hydroxyl group density of the absorption agent ρ

    ACID GAS ENRICHMENT METHOD AND SYSTEM

    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

    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.

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