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    METHOD AND SYSTEM FOR CARRYING OUT AN EXOTHERMIC GAS PHASE REACTION ON A HETEROGENEOUS PARTICULATE CATALYST
    11.
    发明申请
    METHOD AND SYSTEM FOR CARRYING OUT AN EXOTHERMIC GAS PHASE REACTION ON A HETEROGENEOUS PARTICULATE CATALYST 审中-公开

    公开(公告)号：US20160367960A1

    公开(公告)日：2016-12-22

    申请号：US14898788

    申请日：2014-06-16

    Applicant: BASF SE

    Inventor： Gerhard OLBERT ,  Gauthier Luc Maurice AVERLANT

    IPC: B01J8/06 ,  B01J8/04 ,  C01B7/04 ,  C10G2/00 ,  C07C5/48

    CPC classification number: B01J8/067 ,  B01J8/0496 ,  B01J8/065 ,  B01J19/249 ,  B01J2208/00053 ,  B01J2208/00061 ,  B01J2208/00115 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00407 ,  B01J2208/0053 ,  B01J2208/065 ,  B01J2219/2462 ,  B01J2219/2467 ,  B01J2219/2481 ,  C01B7/04 ,  C07C5/48 ,  C10G2/341

    Abstract: The invention relates to a method for producing 1,3 butadien by means of the oxidative dehydration of n-butenes on a heterogenous particulate multimetal oxide catalyst which contains molybdenum as the active compound and at least one other metal and which is filled into the contact tubes (KR) of two or more tube bundle reactors (R-I, R-II), wherein a heat transfer medium flows around the intermediate space between the contact tubes (KR) of the two or more tube bundle reactors (R-I, R-II). The method includes a production mode and a regeneration mode which are carried out in an alternating manner. In the production mode, an n-butene-containing feed flow is mixed with an oxygen-containing gas flow and conducted as a supply flow (1) over the heterogenous particulate multimetal oxide catalyst filled into the contact tubes (KR) of the two or more tube bundle reactors (R-I, R-II), and the heat transfer medium absorbs the released reaction heat, minus the heat quantity used to heat the supply flow (1) to the reaction temperature in the production mode, by means of an indirect heat exchange and completely or partly dispenses the reaction heat onto a secondary heat transfer medium (H2Oliq) in an external cooler (SBK). In the regeneration mode, the heterogenous particulate multimetal oxide catalyst is regenerated by conducting an oxygen-containing gas mixture (3) over the catalyst and burning off the deposits accumulated on the heterogenous particulate multimetal oxide catalyst. The invention is characterized in that the two or more tube bundle reactors (R-I, R-II) have a single heat transfer medium circuit and as many of the two or more tube bundle reactors (R-I, R-II) as necessary are operated constantly in the production mode so that the released reaction heat, minus the heat quantity used to heat the supply flow (1) to the reaction temperature in the production mode, suffices to keep the temperature of the heat transfer medium in the intermediate spaces between the content tubes (KR) of all the tube bundle reactors (R-I, R-II) at a constant level with a variation range of maximally +/−10 DEG C.

    METHOD FOR PRODUCING PHOSGENE
    12.
    发明公开
    METHOD FOR PRODUCING PHOSGENE 审中-公开

    公开(公告)号：US20240317590A1

    公开(公告)日：2024-09-26

    申请号：US18580641

    申请日：2022-07-13

    Applicant: BASF SE

    Inventor： Jan Pablo JOSCH ,  Stefan ENGELS ,  Gerhard OLBERT ,  Torsten MATTKE

    IPC: C01B32/80 ,  B01J21/18 ,  B01J37/08

    CPC classification number: C01B32/80 ,  B01J21/18 ,  B01J37/08

    Abstract: The invention relates to a process for producing phosgene by conversion of chlorine and CO over an activated carbon catalyst, wherein the activated carbon catalyst is dried by reducing the water content, where the drying comprises the following steps:



    a) contacting the catalyst with an inert gas stream
    b) determining the residual moisture content of the catalyst by determining the moisture content in the offgas stream
    c) ending the drying process after attainment of the desired moisture content in the offgas stream by switching from the inert gas to the reaction gases and optionally
    d) heating up the catalyst bed and/or the inert gas during the drying process.

    PHOSGENE PRODUCTION UNIT
    14.
    发明公开
    PHOSGENE PRODUCTION UNIT 审中-公开

    公开(公告)号：US20230277999A1

    公开(公告)日：2023-09-07

    申请号：US18017678

    申请日：2021-07-26

    Applicant: BASF SE

    Inventor： Gerhard OLBERT ,  Stefan ENGELS ,  Jan Pablo JOSCH

    IPC: B01J19/24 ,  C01B32/80

    CPC classification number: B01J19/24 ,  C01B32/80 ,  B01J2219/00036

    Abstract: A unit for producing and processing phosgene, said unit being configured for at least one maintenance mode and at least one production mode and comprising a structure which defines a confined space in a production mode, said confined space being sub-divided into at least two sub-spaces, wherein (i) at least one sub-space contains at least one apparatus for producing phosgene; (ii) at least one sub-space, other than the at least one sub-space according to (i), contains at least one apparatus for processing phosgene; (iii) the structure comprises at least one openable and lockable access means for temporary access of at least one of the apparatuses according to (i) or (ii) from outside the structure in a maintenance mode.

    PROCESS AND REACTOR FOR PRODUCING PHOSGENE
    15.
    发明申请
    PROCESS AND REACTOR FOR PRODUCING PHOSGENE 有权

    公开(公告)号：US20220332587A1

    公开(公告)日：2022-10-20

    申请号：US17612237

    申请日：2020-04-20

    Applicant: BASF SE

    Inventor： Gerhard OLBERT ,  Jens FERBITZ ,  Kai THIELE ,  Peter VAN DEN ABEEL ,  Koenraad VANDEWALLE ,  Jim BRANDTS ,  Torsten MATTKE

    IPC: C01B32/80 ,  B01J8/06

    Abstract: The invention relates to a process for producing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a catalyst in a reactor which comprises a plurality of parallel catalyst tubes which are filled with the catalyst and around which at least one fluid heat transfer medium flows, where a feed stream of a mixture of a chlorine input stream and a carbon monoxide input stream is fed into the catalyst tubes and is allowed to react to give a phosgene-comprising product gas mixture, wherein the reaction is carried out at an area load of more than 2.75 kg of phosgene/m2s. The invention also provides a reactor for carrying out the process.

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