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    REAKTOR UND VERFAHREN ZUR HERSTELLUNG VON PHOSGEN
    1.
    发明公开
    REAKTOR UND VERFAHREN ZUR HERSTELLUNG VON PHOSGEN 审中-公开
    反应器及其制造方法光气

    公开(公告)号：EP2379217A1

    公开(公告)日：2011-10-26

    申请号：EP09799608.6

    申请日：2009-12-16

    Applicant: BASF SE

    Inventor： OLBERT, Gerhard ,  GERLINGER, Wolfgang ,  KIM, Byoung Yeon

    IPC: B01J8/06 ,  C01B31/28

    Abstract: The invention relates to a reactor (1) for producing phosgene by reacting carbon monoxide and chlorine in the gas phase in the presence of a solid catalyst, which is arranged in the contact tubes (2) of a bundle of contact tubes (2), which are welded into a tube bottom (3) in each case at both ends of said contact tubes, the starting materials being fed at the upper end of the contact tubes (2) and the gaseous reaction mixture being drained at the lower end of the contact tubes (2), through a hood in each case, and having feed and discharge devices for a liquid heat exchanger (6) in the intermediate space (4) between the contact tubes (2), the flow of the heat exchanger (6) in the jacket space (4) between the contact tubes (2) being directed by means of baffle plates (5), which alternately leave open passage openings (7) located opposite each other at the reactor inner wall, the baffle plates (5) comprising circular segment-shaped holes in the passage openings, and the reactor (1) having no tubes in the area of the passage openings (7), characterized in that the heat transfer coefficients at the boundary layer between the catalyst tubes (2) and the heat exchanger (6) are homogenized over each reactor cross-section in that the flow paths of the heat exchanger (6) in each reactor cross-section, in each case measured from the first to the last contact tube (2) in the flow direction of the heat exchanger (6), are equalized through a changed arrangement of the contact tubes (2).

    VERFAHREN ZUR HERSTELLUNG VON PHOSGEN
    3.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON PHOSGEN 审中-公开
    用于生产光气

    公开(公告)号：EP2406181A1

    公开(公告)日：2012-01-18

    申请号：EP10707905.5

    申请日：2010-03-10

    Applicant: BASF SE

    Inventor： OLBERT, Gerhard ,  THIELE, Kai ,  KIM, Byoung Yeon ,  SCHELLING, Heiner

    IPC: C01B31/28

    Abstract: A method is proposed for producing phosgene by reacting a feed stream (1) obtained by combining and mixing a chlorine feed stream (2) and a carbon monoxide feed stream (3), wherein the carbon monoxide is fed in a stoichiometric excess over chlorine, on contact tubes that are filled with activated-carbon beds, of a reactor R having a bundle of contact tubes, obtaining a product gas mixture (4) that is separated into a liquid, phosgene-containing product stream (5), and also an exhaust gas stream (6) containing carbon monoxide which is ejected via a pressure-retaining valve, and wherein the feed stream (1) is reacted in the reactor R and also the product gas mixture (4) is separated at a pressure in the range from 2.0 to 6.0 bar superatmospheric pressure, which is characterized in that the carbon monoxide excess in the feed steam (1) to the reactor R is controlled by continuously measuring the flow rate and the concentration of carbon monoxide in the exhaust gas stream (6), herefrom, in combination with the continuously determined measured values of the flow rate of the carbon monoxide feed stream (3), the flow rate and the chlorine concentration of the chlorine feed stream (2), the actual value of the carbon monoxide excess in the feed stream (1) to the reactor R is calculated and matched to the theoretical value of the carbon monoxide excess in the feed stream (1) to the reactor R by adapting the flow rate of the carbon monoxide feed stream (3).

    REAKTOR UND VERFAHREN ZUR HERSTELLUNG VON PHOSGEN
    5.
    发明公开
    REAKTOR UND VERFAHREN ZUR HERSTELLUNG VON PHOSGEN 有权

    公开(公告)号：EP2379216A1

    公开(公告)日：2011-10-26

    申请号：EP09768402.1

    申请日：2009-12-16

    Applicant: BASF SE

    Inventor： OLBERT, Gerhard ,  GERLINGER, Wolfgang ,  KIM, Byoung Yeon

    IPC: B01J8/06 ,  C01B31/28

    CPC classification number: B01J8/067 ,  B01J2208/00221 ,  B01J2208/0023 ,  B01J2219/00247 ,  B01J2219/0286 ,  C01B32/80

    Abstract: The invention relates to a reactor (1) for producing phosgene by reacting carbon monoxide and chlorine in the gas phase in the presence of a solid catalyst, which is provided in a plurality of contact tubes (2) which are arranged parallel to each other in the longitudinal direction of the reactor (1) and which are welded into a tube bottom (3) in each case at both ends of said contact tubes, the starting materials being fed at the upper end of the contact tubes (2) and the gaseous reaction mixture being drained at the lower end of the contact tubes (2), through a hood in each case, and having feed and discharge devices for a liquid heat exchanger (7) in the jacket space (4) between the contact tubes (2), the flow of the heat exchanger (7) in the jacket space (4) between the contact tubes (2) being directed in a meandering manner by means of baffle plates (5), in each case a baffle plate (5) leaving open two circular segment-shaped passage openings (6) located opposite of each other at the reactor inner wall, and in each case the directly following baffle plate leaving open a central passage opening (11), which is bounded by two straight lines that are parallel and equidistant to each other and to a reactor diameter, and the reactor (1) having no tubes in the area of the circular segment-shaped passage openings (6) and in the area of the central passage opening (11), characterized in that the plurality of contact tubes (2) oriented parallel to each other in the longitudinal direction of the reactor (1) are arranged in two bundles of contact tubes (2) that are identical to each other and that are separated from each other by an area free of contact tubes that extends along a reactor diameter on both sides, and the heat transfer coefficients at the boundary layer between the contact tubes (2) and the heat exchanger (7) are homogenized over each reactor cross-section in that the flow paths of the heat exchanger (7) in each reactor cross-section, in each case measured from the first to the last contact tube (2) in the flow direction of the heat exchanger (7), are equalized through a changed arrangement of the contact tubes (2).

    Abstract translation: 一种用于在固体催化剂存在下通过一氧化碳和氯的气相反应制备光气的反应器（1），其设置在多个催化剂管（2）中，所述多个催化剂管（2）在纵向上彼此平行地排列 反应器（1）的方向并且在它们的两端中的每一端被焊接到管板（3）中，在催化剂管（2）的上端引入起始材料并将气体反应混合物在 催化剂管（2）的下端，在每种情况下都经由盖，并且还具有用于壳体内的催化剂管（2）之间的空间（4）中的液体传热介质（7）的引入和排出设备， 其中壳体内的催化剂管（2）之间的空间（4）中的传热介质（7）的流动是偏转板（5）的结果，每个替代偏转板（5）离开两个开口 6）具有在相对侧上的自由段的形状 反应器的内壁和紧随其后的偏转板离开中心开口（11），该中心开口（11）由两条彼此平行且相等的直线界定，并且反应器直径没有，并且反应器（1）中没有管 具有圆形形状并且在中心开口（11）的区域中的开口（6）的区域，其中在反应器（1）的纵向方向上彼此平行地排列的许多催化剂管（2） ）被布置在两束相同的催化剂管（2）中，它们彼此分离，没有催化剂管（2）的区域并且沿着反应器直径延伸到两侧，并且在两端之间的界面处的传热系数 催化剂管（2）和传热介质（7）通过每个反应器横截面中的传热介质（7）的流动路径在每个反应器横截面上相等，在每种情况下，从第一至最后一个催化剂管 （2）在传热介质（7）的流动方向上通过改变的催化剂管（2）的布置彼此匹配。

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