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    METHOD FOR THE OXIDATIVE DEHYDROGENATION OF N-BUTENES TO BUTADIENE
    23.
    发明专利
    METHOD FOR THE OXIDATIVE DEHYDROGENATION OF N-BUTENES TO BUTADIENE 未知

    公开(公告)号：MY169031A

    公开(公告)日：2019-02-04

    申请号：MYPI2015001795

    申请日：2014-01-15

    Applicant: BASF SE

    Inventor： WECK ALEXANDER ,  DR -ING JOSCH JAN PABLO ,  DR -ING GIESA SONJA ,  DR -ING BUTEHORN STEFFEN ,  DR BALEGEDDE RAMACHANDRAN RAGAVENDRA PRASAD ,  DR WEBER MARKUS ,  DR BENFER REGINA

    Abstract: The invention relates to a process for preparing butadiene from n-butenes, which comprises the following steps: A) provision of a feed gas stream a comprising n-butenes; B) introduction of the feed gas stream a comprising n-butenes and an oxygen-comprising gas into at least one dehydrogenation zone and oxidative dehydrogenation of n-butenes to butadiene, giving a product gas stream b comprising butadiene, unreacted n-butenes, water va- por, oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases; C) cooling and compression of the product gas stream b in at least one compression stage, giving at least one condensate stream c1 com- prising water and a gas stream c2 comprising butadiene, n-butenes, water vapor, oxygen, low-boiling hydrocarbons, possibly carbon ox- ides and possibly inert gases; D) separation of incondensable and low-boiling gas constituents com- prising oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases as gas stream d2 from the gas stream c2 by Da) absorption of the C4-hydrocarbons comprising butadiene and n-butenes in a high-boiling absorption medium, giving an absorption medium stream loaded with C4-hydrocarbons and the gas stream d2, Db) removal of oxygen from the absorption medium stream loaded with C4-hydrocarbons by stripping with an inert gas and Dc) desorption of the C4-hydrocarbons from the loaded absorption medium stream to give a C4 product gas stream d1 which consists essentially of C4-hydrocarbons and comprises less than 100 ppm of oxygen; E) separation of the C4 product stream d1 by extractive distillation with a solvent which is selective for butadiene into a stream e1 comprising butadiene and the selective solvent and a stream e2 comprising n- butenes; F) distillation of the stream e1 comprising butadiene and the selective solvent to give a stream f1 consisting essentially of the selective sol- vent and a butadiene-comprising stream f2. (Fig. 1)

    PROCESS FOR WORKUP OF A STREAM COMPRISING BUTENE AND/OR BUTADIENE
    24.
    发明专利
    PROCESS FOR WORKUP OF A STREAM COMPRISING BUTENE AND/OR BUTADIENE 未知

    公开(公告)号：MY161169A

    公开(公告)日：2017-04-14

    申请号：MYPI2013003223

    申请日：2012-03-02

    Applicant: BASF SE

    Inventor： KOSTOVA ALBENA ,  WECK ALEXANDER ,  BENFER REGINA ,  GOTZ JOCHEN ,  REZAI ALIREZA ,  MORILLO ARISTIDES ,  OLBERT GERHARD ,  PFAB PETER ,  KOLIOS GRIGORIOS ,  WEBER MARKUS

    IPC: C07C7/04 ,  C07C7/08 ,  C07C7/11

    Abstract: THE INVENTION RELATES TO A PROCESS FOR WORKUP OF A STREAM (1) COMPRISING BUTANE AND/OR BUTADIENE, BUTANE, HYDROGEN AND/OR NITROGEN AND CARBON DIOXIDE, COMPRISING THE FOLLOWING STEPS: (A) ABSORPTION OF THE STREAM (1) COMPRISING BUTANE AND/OR BUTADIENE, BUTANE, HYDROGEN AND/OR NITROGEN, WITH OR WITHOUT CARBON DIOXIDE, WITH A MIXTURE (5) COMPRISING 80 TO 97% BY WEIGHT OF N-METHYLPYRROLIDONE AND 3 TO 20% BY WEIGHT OF WATER TO OBTAIN A STREAM (9) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND BUTANE, WITH OR WITHOUT CARBON DIOXIDE, AND A STREAM (7) COMPRISING HYDROGEN AND/OR NITROGEN AND BUTANE, (B) EXTRACTIVE DISTILLATION OF THE STREAM (9) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND BUTANE, WITH OR WITHOUT CARBON DIOXIDE, WITH A STREAM (13) COMPRISING 80 TO 97% BY WEIGHT OF N-METHYLPYRROLIDONE AND 3 TO 20% BY WEIGHT OF WATER TO SEPARATE THE STREAM (9) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND BUTANE, WITH OR WITHOUT CARBON DIOXIDE, INTO A STREAM (17) COMPRISING N-METHYLPYRROLIDONE, WATER, BUTANE AND/OR BUTADIENE, AND A STREAM (15) COMPRISING ESSENTIALLY BUTANE, WITH OR WITHOUT CARBON DIOXIDE, (C) DISTILLATION OF THE STREAM (17) COMPRISING N-METHYLPYRROLIDONE, WATER BUTANE AND/OR BUTADIENE INTO A STREAM (23) COMPRISING ESSENTIALLY N-METHYLPYRROLIDONE AND WATER, AND A STREAM (21) COMPRISING BUTANE AND/OR BUTADIENE. (FIGURE 1)

    СПОСОБ ОБРАБОТКИ ПОТОКА, СОДЕРЖАЩЕГО БУТЕН И/ИЛИ БУТАДИЕН
    25.
    发明专利
    СПОСОБ ОБРАБОТКИ ПОТОКА, СОДЕРЖАЩЕГО БУТЕН И/ИЛИ БУТАДИЕН 未知

    公开(公告)号：EA025231B1

    公开(公告)日：2016-12-30

    申请号：EA201391261

    申请日：2012-03-02

    Applicant: BASF SE

    Inventor： KOSTOVA ALBENA ,  BENFER REGINA ,  GOETZ JOCHEN ,  REZAI ALIREZA ,  MORILLO ARISTIDES ,  OLBERT GERHARD ,  PFAB PETER ,  KOLIOS GRIGORIOS ,  WEBER MARKUS ,  WECK ALEXANDER

    IPC: C07C7/04 ,  C07C7/08 ,  C07C7/11 ,  C07C9/10 ,  C07C11/08 ,  C07C11/167

    Abstract: Изобретениекасаетсяспособаобработкипотока (1), содержащегобутени/илибутадиен, бутан, водороди/илиазоти диоксидуглерода, включающийследующиеэтапы: (a) абсорбциюпотока (1), содержащегобутени/илибутадиен, бутан, водороди/илиазоти, принеобходимости, диоксидуглерода, сосмесью (5), содержащей 80-97 мас.% N-метилпирролидонаи 3-20 мас.% воды, сполучениемпотока (9), содержащего N-метилпирролидон, воду, бутени/илибутадиени бутани, принеобходимости, диоксидуглерода, ипотока (7), содержащеговодороди/илиазоти бутан, (b) экстрактивнуюдистилляциюпотока (9), содержащего N-метилпирролидон, воду, бутени/илибутадиен, бутани, принеобходимости, диоксидуглерода, спотоком (13), содержащим 80-97 мас.% N-метилпирролидонаи 3-20 мас.% водыдляразделенияпотока (9), содержащего N-метилпирролидон, воду, бутени/илибутадиени бутани, принеобходимости, диоксидуглерода, напоток (17), содержащий, главнымобразом, N-метилпирролидон, воду, бутени/илибутадиен, ипоток (15), содержащий, главнымобразом, бутани, принеобходимости, диоксидуглерода, (с) дистилляциюпотока (17), содержащего N-метилпирролидон, воду, бутени/илибутадиен, впоток (23), содержащий, главнымобразом, N-метилпирролидони воду, ипоток (21), содержащийбутени/илибутадиен.

    27.
    发明专利
    未知

    公开(公告)号：DE502004007163D1

    公开(公告)日：2008-06-26

    申请号：DE502004007163

    申请日：2004-07-06

    Applicant: BASF SE

    Inventor： DUDA MARK ,  MACHHAMMER OTTO ,  WECK ALEXANDER

    IPC: C07C51/215

    Abstract: Maleic anhydride production by gas-phase oxidation of n-butane with oxygen-containing gases on a heterogeneous vanadium-, phosphorus- and oxygen-containing (VPO) catalyst at 350-500[deg]C with recycling of unconverted n-butane is such that (a) the stream entering the reactor has n-butane and O 2 concentrations of 0.5-1.5 and 5-21 volume % respectively; (b) pressure at the inlet is 0.4-2 MPa abs.; and (c) 40-100% of the n-butane is converted. Maleic anhydride (MA) production by gas- phase oxidation of n-butane with oxygen-containing gases on a heterogeneous vanadium-, phosphorus- and oxygen-containing (VPO) catalyst at 350-500[deg]C with MA separation by forming a gas stream containing unconverted n-butane and water and recycling part of the n-butane to the reactor unit is such that (a) the stream entering the reactor has n-butane and oxygen concentrations of 0.5-1.5 and 5-21 volume % respectively; (b) the pressure at the inlet is 0.4-2 MPa abs.; and (c) 40-100% of the n-butane is converted.

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