MAXIMUM REACTION RATE CONVERTER FOR EXOTHERMIC REACTIONS
    31.
    发明申请
    MAXIMUM REACTION RATE CONVERTER FOR EXOTHERMIC REACTIONS 有权
    最大反应速率转换器用于异常反应

    公开(公告)号:US20080056964A1

    公开(公告)日:2008-03-06

    申请号:US11932140

    申请日:2007-10-31

    Abstract: An ammonia converter is disclosed. The converter can alter the conversion of ammonia by controlling the reaction temperature of the exothermic reaction along the length of the reactor to parallel the equilibrium curve for the desired product. The converter can comprise a shell 101 and internal catalyst tubes 109. The feed gas stream enters the reactor, flows through the shell 101, and is heated by indirect heat exchange with the catalyst tubes 109. The catalyst tubes 109 comprise reactive zones 122 having catalyst and reaction limited zones 124 that can comprise inert devices that function to both separate the reactive zones, increase heat transfer area, and reduce the temperature of the reaction mixture as the effluent passes through the catalyst tube 109

    Abstract translation: 公开了一种氨转化器。 转化器可以通过控制沿着反应器长度的放热反应的反应温度来平行所需产物的平衡曲线来改变氨的转化率。 转化器可以包括壳体101和内部催化剂管109.进料气体流进入反应器,流过壳体101,并通过与催化剂管109的间接热交换而加热。催化剂管109包含具有催化剂的反应区域122 以及反应限制区124,其可以包括用于分离反应性区域的惰性装置,增加传热面积,并且当流出物通过催化剂管109时降低反应混合物的温度

    METHOD OF VARYING THE TEMPERATURE OF A TUBE BUNDLE REACTOR
    32.
    发明申请
    METHOD OF VARYING THE TEMPERATURE OF A TUBE BUNDLE REACTOR 有权
    改变管组件反应器温度的方法

    公开(公告)号:US20080023175A1

    公开(公告)日:2008-01-31

    申请号:US11782741

    申请日:2007-07-25

    Abstract: A method of varying the temperature of a tube bundle reactor for catalytic gas phase reactions upon start-up and shut-down, the tube bundle reactor comprising a major reactor portion which includes a bundle of vertically disposed reactor tubes, upper and lower tubesheets tightly connected to the upper and lower ends, respectively, of the reactor tubes, and a reactor shell enclosing the tube bundle, a heat transfer medium having a melting temperature in the range of from 100° C. to 450° C. flowing around the outer surfaces of the reactor tubes during normal operation and being circulated in at least one circuit through the major reactor portion, comprising the steps: (a) varying the heat transfer medium temperature during circulation of the heat transfer medium; and (b) passing a temperature gas through the reactor tubes at least when the heat transfer medium is not yet or no longer circulated.

    Abstract translation: 一种在启动和关闭时改变用于催化气相反应的管束反应器的温度的方法,管束反应器包括主反应器部分,其包括一排垂直设置的反应器管,上管和下管紧密连接 反应器管的上端和下端以及包围管束的反应器壳体,具有在外表面流动的熔点在100℃至450℃范围内的传热介质 的反应器管,并且通过主反应器部分在至少一个回路中循环,包括以下步骤:(a)改变传热介质循环期间的传热介质温度; 和(b)至少当传热介质尚未或不再循环时,使温度气体通过反应器管。

    Reactor for gas phase catalytic oxidation and a process for producing acrylic acid using it
    33.
    发明申请
    Reactor for gas phase catalytic oxidation and a process for producing acrylic acid using it 失效
    用于气相催化氧化的反应器和使用它的丙烯酸生产方法

    公开(公告)号:US20080021242A1

    公开(公告)日:2008-01-24

    申请号:US11826630

    申请日:2007-07-17

    Abstract: Conventional gas-phase catalytic oxidation reaction apparatus comprising two reactors for production of acrylic acid is subject to problems of high equipment costs for the reactors and piping, necessity for wide installation area and easy accumulation of carbides generated by autoxidation of acrolein. On the other hand, conventional reaction apparatus comprising a single reactor has the drawbacks that the composition of gas in the first stage reaction and in the second stage reaction cannot be optimized independently of each other, and that the allowable concentration of starting propylene is limited because of the risk of explosion. As a reaction apparatus to solve these problems, this invention provides a fixed bed shell-and-tube reaction apparatus comprising a single reactor, characterized in that the inside of the reactor is divided into two reaction zones of the first reaction zone and the second reaction zone, and that a space equipped with a mechanism for introducing a gaseous substance from outside is provided between the two reaction zones.

    Abstract translation: 包括用于生产丙烯酸的两个反应器的常规气相催化氧化反应装置受到反应器和管道的高设备成本的问题的影响,需要宽的安装面积和易于积聚由丙烯醛自动氧化产生的碳化物。 另一方面,包括单个反应器的常规反应装置的缺点是第一阶段反应和第二阶段反应中的气体组成不能彼此独立地优化,并且起始丙烯的允许浓度受到限制,因为 的爆炸风险。 作为解决这些问题的反应装置,本发明提供一种包括单个反应器的固定床管壳反应装置,其特征在于,将反应器内部分成第一反应区和第二反应的两个反应区 并且在两个反应区之间设置有配备有用于从外部引入气态物质的机构的空间。

    Heat Exchange Reactor
    34.
    发明申请
    Heat Exchange Reactor 有权
    换热器

    公开(公告)号:US20070217991A1

    公开(公告)日:2007-09-20

    申请号:US11569561

    申请日:2005-05-27

    Applicant: Yasuhiko Mori

    Inventor: Yasuhiko Mori

    Abstract: The present invention provides a heat exchange reactor comprising a reaction tube for obtaining a product (B) by exothermic reaction while passing a starting compound (A) therethrough and a reactor shell covering the surrounding of the reaction tube and having its interior divided into a plurality of regions along the passing direction of the starting compound (A), each of which regions is filled with a heat medium for carrying out heat exchange between the inside of the reaction tube and the heat medium independently for the respective separate regions; wherein the reactor is provided with a heater for heating the heat medium charged in the most upstream region among the separate regions independently from the heat media charged in other regions.

    Abstract translation: 本发明提供了一种热交换反应器,其包括用于通过放热反应同时通过其中的起始化合物(A)获得产物(B)的反应管和覆盖反应管周围并将其内部分成多个的反应器壳 沿着原料化合物(A)的通过方向的区域,每个区域填充有热介质,用于在各个分离区域内独立地进行反应管内部和热介质之间的热交换; 其特征在于,所述反应器具有加热器,用于独立于在其它区域中加载的热介质,加热在分离区域中最上游区域充电的热介质。

    Method of vapor phase catalytic oxidation using multitubular reactor
    40.
    发明授权
    Method of vapor phase catalytic oxidation using multitubular reactor 有权
    使用多管反应器的气相催化氧化方法

    公开(公告)号:US07067695B2

    公开(公告)日:2006-06-27

    申请号:US11064020

    申请日:2005-02-23

    Abstract: An object of the present invention is to provide a method of vapor phase catalytic oxidation which is capable of: efficiently removing heat of reaction; preventing the formation of hot spots; and efficiently providing a desired product. The invention provides a method of vapor phase catalytic oxidation of a substance to be oxidized with a gas containing molecular oxygen by means of a multitubular reactor, wherein the method comprises: performing a reaction of vapor phase catalytic oxidation under such conditions that a heat transfer coefficient of the heat medium is 1,000 W/(m2·K) or higher.

    Abstract translation: 本发明的目的是提供一种气相催化氧化方法,其能够有效地除去反应热; 防止热点形成; 并有效地提供期望的产品。 本发明提供了一种通过多管反应器的含有分子氧气体进行氧化的物质的气相催化氧化方法,其中所述方法包括:在这样的条件下进行气相催化氧化反应:传热系数 的热介质为1000W /(m 2·2K)以上。

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