VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN

    公开(公告)号:EP2751073A1

    公开(公告)日:2014-07-09

    申请号:EP12743169.0

    申请日:2012-08-02

    Applicant: BASF SE

    CPC classification number: C07C263/10 C07C265/14

    Abstract: Process for preparing isocyanates by reacting the corresponding amines comprised in at least one feed stream A with phosgene comprised in at least one feed stream P in a reactor plant comprising at least one mixing zone and at least one reaction zone, wherein feed stream A and/or feed stream P optionally comprise one or more inert materials and, during periods of time in which the flow S
    x of the amines used is below the flow S
    0 of the amines used during operation at the nominal capacity of the reactor plant, (i) the ratio of phosgene to amine is increased and/or (ii) the concentration of the inert material or materials in the amine-comprising feed stream A and/or the phosgene-comprising feed stream P is increased compared to operation at the nominal capacity of the reactor.

    Abstract translation: 通过使包含在至少一种进料流A中的相应胺与包含在至少一种进料流P中的光气在包含至少一个混合区和至少一个反应区的反应器装置中反应来制备异氰酸酯的方法,其中进料流A和/ 或进料流P任选地包含一种或多种惰性材料,并且在所使用的胺的流量S x低于在反应器设备的额定容量下操作期间使用的胺的流量S 0的时间段期间, )光气与胺的比例增加和/或(ii)与标称容量下的操作相比,含胺的进料流A和/或含光气的进料流P中的一种或多种惰性材料的浓度增加 的反应堆。

    ROHRBÜNDELREAKTOR ZUR HERSTELLUNG VON MALEINSÄUREANHYDRID
    83.
    发明公开
    ROHRBÜNDELREAKTOR ZUR HERSTELLUNG VON MALEINSÄUREANHYDRID 审中-公开
    管式反应器用于生产顺酐

    公开(公告)号:EP2498904A2

    公开(公告)日:2012-09-19

    申请号:EP10771481.8

    申请日:2010-11-02

    Applicant: BASF SE

    Abstract: The invention relates to a system for producing maleic acid anhydride by means of heterogeneously catalyzed gas phase oxidation of an inlet flow, comprising hydrocarbons having at least (4) carbon atoms per molecule, comprising a reactor having a bundle of reaction tubes into which a solid catalyst is introduced, on which the exothermal reaction of the inlet flow with a gas flow containing oxygen takes place, and one or more pumps and one or more heat exchangers located outside of the reactor, by means of which a heat carrier made of a salt melt is carried, permeating the intermediate reaction space between the reaction tubes and absorbing reaction heat, the temperature of the salt melt being in the range of 350 to 480 °C, characterized in that the reaction tubes are made of an alloyed, heat-resistant steel comprising either at least 0.5 wt % chromium, or at least 0.25 wt % molybdenum, or at least 0.5 wt % chromium and at least 0.25 wt % molybdenum.

    MODULARE KATALYSATORMONOLITHE
    89.
    发明公开

    公开(公告)号:EP3380222A1

    公开(公告)日:2018-10-03

    申请号:EP16802003.0

    申请日:2016-11-18

    Applicant: BASF SE

    CPC classification number: C01B21/28 B01J10/007 B01J19/2485 C01B21/26 C01B21/38

    Abstract: The invention relates to a reactor (R) with a device (D) containing a gas and/or liquid-permeable base (B) in whose edge region a lateral boundary (W) is arranged which entirely surrounds the base (B) and forms a volume (V), said volume containing catalytic and/or non-catalytic moulded bodies (F), wherein at least one mesh made of noble metal and/or non-noble metal is located on the side opposing the base (B) in the upstream direction, and the catalytic and/or non-catalytic moulded bodies (F) are selected from (i) moulded bodies (F1) in the form of straight prisms whose base surface is selected from a triangle, rectangle, hexagon or fragments of these polygons, or (ii) a combination of the moulded bodies (F1) with moulded bodies (F2) that are smaller than the moulded bodies (F1), characterised in that groups of m to n moulded bodies (F1), where m/n is a whole number between 3-30 and n > m, are bound to form modules (M) in a metal cassette that is open upstream and closed with a gas-permeable base in the downstream direction, with their lateral surfaces side by side practically without a gap and with their longitudinal axis oriented in the vertical direction, such that the cross-section of the base is practically entirely covered, and which modules (M) are joined to one another in a mosaic-like manner practically without a gap, with the vertical orientation of the longitudinal axis of the moulded bodies (F1), optionally with the cooperation of a joint filling material.

    VERFAHREN UND ANLAGE ZUR DURCHFÜHRUNG EINER EXOTHERMEN GASPHASENREAKTION AN EINEM HETEROGENEN PARTIKELFÖRMIGEN KATALYSATOR
    90.
    发明公开
    VERFAHREN UND ANLAGE ZUR DURCHFÜHRUNG EINER EXOTHERMEN GASPHASENREAKTION AN EINEM HETEROGENEN PARTIKELFÖRMIGEN KATALYSATOR 审中-公开
    方法用于进行放热气相反应是在非均相颗粒催化剂

    公开(公告)号:EP3010634A1

    公开(公告)日:2016-04-27

    申请号:EP14729922.6

    申请日:2014-06-16

    Applicant: BASF SE

    Abstract: The invention relates to a method for carrying out an exothermic gas phase reaction on a heterogeneous particulate catalyst, which is introduced into the contact tubes of two or more multi-tube reactors (R-l, R-Il) into the gaps between the thermal plates of two or more thermal plate reactors or in the beds of two or more bed reactors traversed by heat exchange means, wherein a heat transfer medium circulates through the intermediate space between the contact tubes (KR) of the two or more multi-tube reactors (R-l, R-Il), through the thermal plates of the two or more thermal plate reactors or through the heat exchange means of the two or more bed reactors, wherein the method comprises a production mode and a regenerating mode, characterised in that the two or more multi-tube reactors (R-l, R-Il), thermal plate reactors, or bed reactors have a single heat transfer medium circuit, and that always as many of the two or more multi-tube reactors (R-l, R-Il), thermal plate reactors, or bed reactors are operated in production mode that the released heat of reaction minus the amount of heat consumed for heating of the feed stream (1) in all multi-tube reactors (R-l, R-Il), thermal plate reactors or bed reactors to reaction temperature in the production mode is sufficient, such that the temperature of the heat transfer medium in the intermediate spaces between the contact tubes (KR) of all the multi-tube reactors (R-l, R-Il), in the thermal plates of all the thermal plate reactors or in the heat exchange means of the bed reactors is kept constant at a fluctuation range of a maximum of +/- 10 °C.

    Abstract translation: 本发明涉及一种用于通过正丁烯的在其上含有钼作为活性化合物和至少一种其它金属的异质粒状多金属氧化物催化剂的氧化脱水来生产1,3-丁二烯和所有其被填充到接触管 两个或多个管束反应器(RI,R-II)的(KR),worin传热介质围绕所述两个或更多管束反应器的接触管(KR)(RI,R-II)之间的中间空间中流动 , 该方法包括在生产模式和它们在交替的方式进行。在再生模式。 在生产模式中,进料流的含正丁烯与在含氧气体流混合,并进行与填充到所述两个或两个的接触管(KR)的供给流量(1)在非均相颗粒的多金属氧化物催化剂 更管束反应器(RI,R-II),并且传热介质吸收所释放的反应热,减去用于加热供应流的热量(1)在生产模式中的反应温度,通过间接的方式 热交换而完全呼叫或在外部冷却器(SBK)部分地分配所述反应热到辅助传热介质(H2Oliq)。 在再生模式中,非均相颗粒的多金属氧化物催化剂通过进行到在催化剂上的含氧气体混合物(3)和燃烧掉积聚在微粒异质多金属氧化物催化剂沉积物再生。 本发明是在DASS特征的模具的两个或更多管束反应器(RI,R-II)具有单一的热传递介质回路和多达两个或更多个管束反应器(RI,R-II)作为必要不断地操作的 在生产模式,这样做所释放的反应热,减去用于加热供应流(1)在生产模式中,反应温度的热量,足以保持所述传热介质的温度在内容之间的中间空间 管全部管束反应器的(KR)(RI,R-II)在恒定的水平与的变化范围最大+/- 10℃

Patent Agency Ranking