Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid
    7.
    发明授权
    Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid 有权
    将丙烯非均相催化部分气相氧化成丙烯酸

    公开(公告)号:US07164039B2

    公开(公告)日:2007-01-16

    申请号:US10808282

    申请日:2004-03-25

    IPC分类号: C07C51/16

    CPC分类号: C07C51/252 C07C57/04

    摘要: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid, the propene-containing starting reaction gas mixture is oxidized in a first reaction stage using a fixed catalyst bed 1 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the acrolein-containing product gas mixture of the first reaction stage is then oxidized in a second reaction stage using a fixed catalyst bed 2 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones C, D, and the transition from one temperature zone to another temperature zone within one reaction stage does not spatially coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.

    摘要翻译: 在将丙烯非均相催化的部分气相氧化成丙烯酸的方法中,含丙烯的起始反应气体混合物在第一反应阶段中使用由多个固定催化剂床区组成的固定催化剂床1被氧化, 在两个连续的温度区A,B和第一反应阶段的含丙烯醛的产物气体混合物然后在第二反应阶段中使用由多个固定催化剂床区组成的固定催化剂床2进行氧化, 两个连续的温度区域C,D以及在一个反应​​阶段内从一个温度区域到另一个温度区域的过渡在空间上与从一个固定催化剂床区域到另一个固定催化剂床区域的过渡不一致。

    REACTOR FOR CARRYING OUT AUTOTHERMAL GAS-PHASE DEHYDROGENATIONS
    9.
    发明申请
    REACTOR FOR CARRYING OUT AUTOTHERMAL GAS-PHASE DEHYDROGENATIONS 有权
    用于实施自动气相脱氢反应的反应器

    公开(公告)号:US20110130607A1

    公开(公告)日:2011-06-02

    申请号:US12957618

    申请日:2010-12-01

    IPC分类号: C07C5/333 B01J8/02

    CPC分类号: B01J19/2485 B01J2219/182

    摘要: A reactor (1) in the form of an essentially horizontal cylinder for carrying out an autothermal gas-phase dehydrogenation of a hydrocarbon-comprising gas stream (2) by means of an oxygen-comprising gas stream (3) to give a reaction gas mixture over a heterogeneous catalyst configured as monolith (4), wherein the interior of the reactor (1) is divided by a detachable, cylindrical or prismatic housing G which is arranged in the longitudinal direction of the reactor (1) and is gastight in the circumferential direction and open at two end faces of the housing into an inner region A having one or more catalytically active zones (5), in which in each case a packing composed of monoliths (4) stacked on top of one another, next to one another and above one another and before each catalytically active zone (5) in each case a mixing zone (6) having solid internals are provided, and an outer region B arranged coaxially to the inner region A, is proposed.

    摘要翻译: 一种基本上水平的圆筒形式的反应器(1),用于通过含氧气流(3)进行含烃气流(2)的自热气相脱氢,得到反应气体混合物 在构造为整料(4)的非均相催化剂上,其中反应器(1)的内部被沿着反应器(1)的纵向布置的可拆卸的圆柱形或棱柱形的壳体G分开,并且在圆周 方向并且在壳体的两个端面处打开到具有一个或多个催化活性区域(5)的内部区域A中,其中在每个情况下由堆叠在彼此顶部的整料(4)彼此相邻的填料构成 并且在每种情况下,在每个催化活性区(5)之前和之前提供具有固体内部的混合区(6),并且提供与内部区域A同轴布置的外部区域B.

    REACTOR FOR CARRYING OUT HIGH PRESSURE REACTIONS, METHOD FOR STARTING AND METHOD FOR CARRYING OUT A REACTION
    10.
    发明申请
    REACTOR FOR CARRYING OUT HIGH PRESSURE REACTIONS, METHOD FOR STARTING AND METHOD FOR CARRYING OUT A REACTION 审中-公开
    实施高压反应的反应器,起动方法和进行反应的方法

    公开(公告)号:US20110009627A1

    公开(公告)日:2011-01-13

    申请号:US12864540

    申请日:2009-01-21

    摘要: The invention relates to a reactor for performing high-pressure reactions, comprising at least one tube (31) whose ends are each conducted through a tube plate (33) and which is bonded to the tube plate (33). The tube plates (33) and the at least one tube (31) are surrounded by an outer jacket, such that an outer space (39) is formed between the tube (31) and the outer jacket. The tube plates (33) each have at least one surface composed of a nickel-base alloy and the at least one tube (31) is in each case welded on to the surface composed of the nickel-base alloy. The surface composed of the nickel-base alloy points in each case in the direction of the particular reactor end. The outer jacket has a thickness which is sufficient to absorb tensile forces which occur between tube (31) and outer jacket owing to a temperature difference in the event of different expansion. The invention further relates to a process for starting up the reactor and for performing an exothermic reaction in the reactor.

    摘要翻译: 本发明涉及一种用于进行高压反应的反应器,包括至少一个管(31),其端部各自通过管板(33)导通,并连接到管板(33)。 管板(33)和至少一个管(31)被外护套围绕,使得在管(31)和外护套之间形成外部空间(39)。 管板(33)各自具有由镍基合金构成的至少一个表面,并且至少一个管(31)各自焊接在由镍基合金构成的表面上。 由镍基合金组成的表面在每种情况下都指向特定反应器端的方向。 外护套的厚度足以吸收由于在不同膨胀的情况下的温度差而在管(31)和外护套之间发生的张力。 本发明还涉及一种启动反应器并在反应器中进行放热反应的方法。