中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

58 records (took 0.028 seconds)

    21.
    发明专利
    未知

    公开(公告)号：DE50008248D1

    公开(公告)日：2004-11-18

    申请号：DE50008248

    申请日：2000-07-14

    Applicant: BASF AG

    Inventor： HUGO RANDOLF ,  WAGNER RUPERT ,  HOLST S ,  GROSSMANN CHRISTOPH

    IPC: B01D53/14 ,  C10L3/10

    Abstract: The disclosure concerns a process for removing mercaptans from fluid streams comprising same, especially from hydrocarbon gas streams, for example natural gas, synthesis gas from heavy oil or heavy residues or refinery gas, or else from liquid hydrocarbons, for example LPG (liquefied petroleum gas). The invention comprises intimately contacting the fluid stream in an absorption or extraction zone with a scrubbing liquor comprising at least one aliphatic alkanolamine of 2-12 carbon atoms, the amount of wash liquor being supplied to the absorption or extraction zone being sufficient to remove at least CO2 and H2S essentially completely from the fluid stream, and separating the substantially decontaminated fluid stream and the contaminated wash liquor and discharging them from the absorption zone. The substantially complete removal of CO2 and H2S is accompanied by the removal from the gas, stream of a very large portion of the mercaptans as well, without a significant fraction of the hydrocarbon gases dissolving in the wash liquor.

    PROCEDIMIENTO PARA ELIMINAR MERCAPTANOS DE CORRIENTES DE FLUIDOS QUE LOS CONTIENEN
    23.
    发明专利
    PROCEDIMIENTO PARA ELIMINAR MERCAPTANOS DE CORRIENTES DE FLUIDOS QUE LOS CONTIENEN 未知

    公开(公告)号：PE20010604A1

    公开(公告)日：2001-05-28

    申请号：PE0006882000

    申请日：2000-07-10

    Applicant: BASF AG

    Inventor： HUGO RANDOLF ,  WAGNER RUPERT ,  HOLST THOMAS S ,  GROSMANN CHRISTOPH

    IPC: B01D53/14 ,  C10L3/10

    Abstract: DONDE DICHO PROCEDIMIENTO COMPRENDE: i) PONER EN CONTACTO LA CORRIENTE DE FLUIDOS EN UNA ZONA DE ABSORCION O EXTRACCION CON UN LIQUIDO DE LAVADO, EL CUAL CONTIENE: a) POR LO MENOS DE 10% A 70% EN PESO DE UNA ALCANOLAMINA ALIFATICA C2-C12, TAL COMO TRIETANOLAMINA O METILDIETANOLAMINA; b) COMO MAXIMO 5% EN PESO DE UN SOLVENTE FISICO PARA MERCAPTANOS; Y, c) DE 0% A 20% EN PESO DE UNA AMINA PRIMARIA O SECUNDARIA COMO ACTIVADOR, TAL COMO ALCANOLAMINA PRIMARIA O SECUNDARIA O UN N-HETEROCICLO DE 5 o 6 MIEMBROS SATURADO; ALIMENTANDO SUFICIENTE LIQUIDO DE LAVADO A DICHA ZONA, PARA QUE POR LO MENOS CO2 Y H2S SEAN ELIMINADOS SUSTANCIALMENTE EN FORMA COMPLETA DE LA CORRIENTE DE FLUIDOS; Y, b) SEPARAR LA CORRIENTE DE FLUIDOS PURIFICADA Y EL LIQUIDO DE LAVADO CARGADO, Y RETIRARLOS DE DICHA ZONA

    26.
    发明专利
    未知

    公开(公告)号：DE502004005385D1

    公开(公告)日：2007-12-13

    申请号：DE502004005385

    申请日：2004-09-04

    Applicant: BASF AG

    Inventor： HUGO RANDOLF ,  JOURDAN SABINE ,  WENZ KIRSTEN ,  PREISS THOMAS ,  WECK ALEXANDER

    IPC: C07C209/48 ,  C07C211/27

    Abstract: A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile and hydrogenating the phthalonitrile, which comprises contacting the vaporous product of the ammoxidation stage directly with a liquid organic solvent or with molten phthalonitrile (quench), partly or fully removing components having a boiling point lower than phthalonitrile (low boilers) from the resulting quench solution or suspension or phthalonitrile melt and, after the low boiler removal and before the hydrogenation, removing products having a boiling point higher than phthalonitrile (high boilers).

    29.
    发明专利
    未知

    公开(公告)号：DE50011301D1

    公开(公告)日：2006-02-16

    申请号：DE50011301

    申请日：2000-10-04

    Applicant: BASF AG

    Inventor： WAGNER RUPERT ,  HUGO RANDOLF ,  HOLST S

    IPC: B01D11/04 ,  B01D53/14 ,  C10K1/14 ,  C10L3/10

    Abstract: COS is selectively removed with respect to CO2 from a hydrocarbonaceous fluid stream which contains CO2 and COS. Examples of the fluid stream include a gas stream, for example natural gas, synthesis gas from heavy oil or heavy residues or refinery gas, or from liquid or liquefied hydrocarbons, for example LPG (Liquefied Petroleum Gas) or NGL (Natural Gas Liquids). The process is carried out by (1) intimately contacting the fluid stream in an absorption or extraction zone with a scrubbing liquor consisting of an aqueous amine solution containing from 1.5 to 5 mol/l of an aliphatic alkanolamine having of from 2 to 12 carbon atoms and from 0.8 to 1.7 mol/l of at least one activator selected from the group consisting of piperazine, methyl piperazine and morpholine, (2) removing the COS essentially completely from the fluid stream, and (3) separating the substantially COS-decontaminated fluid stream and the COS-loaded scrubbing liquor and discharging them from the absorption or extraction zone.

Patent Agency Ranking