METHOD FOR PRODUCING POLYPHENYLENE ETHER AMINE

    公开(公告)号:US20230279181A1

    公开(公告)日:2023-09-07

    申请号:US17739212

    申请日:2022-05-09

    Abstract: A method for producing polyphenylene ether amine includes following steps. In step (a), a hydrogenation reaction tank is provided; a guided gas stirrer is disposed in the hydrogenation reaction tank. In step (b), a reaction solution is placed in the hydrogenation reaction tank, and the reaction solution is nitro polyphenylene ether dissolved in a solvent. In step (c), a hydrogenation catalyst is added to the reaction solution. In step (d), a hydrogen gas is introduced into the hydrogenation reaction tank. In step (e), the guided gas stirrer is activated. In step (f), a hydrogenation reaction is carried out on the conditions that a reaction temperature is 50-200° C. and a reaction time is 1-20 hours, so as to hydrogenate the nitro polyphenylene ether in the reaction solution to polyphenylene ether amine. In step (g), the reaction solution is cooled down to a room temperature; the hydrogenation catalyst is removed.

    Method for preparing ester of cyclohexane polycarboxylic acid from ester of benzene polycarboxylic acid
    5.
    发明授权
    Method for preparing ester of cyclohexane polycarboxylic acid from ester of benzene polycarboxylic acid 有权
    由苯多羧酸酯制备环己烷多元羧酸酯的方法

    公开(公告)号:US08653296B2

    公开(公告)日:2014-02-18

    申请号:US13362003

    申请日:2012-01-31

    Abstract: A method for preparing esters of cyclohexane polycarboxylic acids from esters of benzene polycarboxylic acids makes improvement to hydrogenation of esters of benzene polycarboxylic acids by using a reaction tank having a gas-introducing mixer capable of extracting and exhausting air and stirring to hydrogenate an ester of a benzene polycarboxylic acids into an ester of a cyclohexane polycarboxylic acid in the presence of a hydrogenation catalyst; resulted in that the method advantageously minimizes the operational pressure for hydrogenating esters of benzene polycarboxylic acids and significantly lowers the reaction temperature for hydrogenation while effectively improving the yield of esters of cyclohexane polycarboxylic acids made from the esters of the benzene polycarboxylic acids.

    Abstract translation: 由苯多羧酸的酯制备环己烷多元羧酸的酯的方法通过使用具有能够提取和排出空气的气体导入混合器的反应罐并进行搅拌来氢化苯多羧酸的酯,从而改善了苯多元羧酸的酯的氢化 苯多元羧酸在加氢催化剂存在下转化成环己烷多元羧酸的酯; 导致该方法有利地最小化苯多元羧酸酯的操作压力,并显着降低氢化反应温度,同时有效地提高了由苯多元羧酸的酯制得的环己烷多元羧酸酯的产率。

    Chemical Reactor with a Plate Heat Exchanger
    7.
    发明申请
    Chemical Reactor with a Plate Heat Exchanger 有权
    具有板式换热器的化学反应器

    公开(公告)号:US20130052097A1

    公开(公告)日:2013-02-28

    申请号:US13639003

    申请日:2011-03-14

    Abstract: A steam cooled chemical reactor (1) comprising a vertical vessel (2), a plate heat exchanger embedded in a catalytic bed, to cool the catalytic bed by evaporation of a cooling water flow, wherein a water inlet and a steam outlet are located underneath the heat exchanger, and the plates and related piping are arranged so that the path of the cooling flow comprises a first ascending path from bottom to top of the catalytic bed, and a second descending path from top to the bottom of catalytic bed, and wherein internal evaporation channels of the plates provide the second descending or the first ascending path, and water upcomers or respectively steam downcomers provide the other of said first and second path.

    Abstract translation: 一种蒸汽冷却的化学反应器(1),包括垂直容器(2),嵌入在催化床中的板式热交换器,通过冷却水流的蒸发来冷却催化床,其中进水口和蒸汽出口位于下方 热交换器和板及相关管道被布置成使得冷却流的路径包括从催化床的底部到顶部的第一上升路径以及从催化床的顶部到底部的第二下降路径,并且其中 板的内部蒸发通道提供第二下降或第一上升路径,并且水升降器或分别蒸汽下降管提供所述第一和第二路径中的另一个。

    Isothermal reactor
    8.
    发明授权
    Isothermal reactor 有权
    等温反应堆

    公开(公告)号:US08307696B2

    公开(公告)日:2012-11-13

    申请号:US12300446

    申请日:2007-04-27

    Abstract: The present invention concerns an isothermal reactor (1) comprising a pressure vessel (2) closed at the opposite ends by respective bottoms (3, 4), a reaction zone (9) in said pressure vessel (2) in which at least one catalytic basket (10) is positioned, and at least one heat exchange unit (13) embedded in said at least one catalytic basket (10), each heat exchange unit (13) comprising a plurality of heat exchangers (14) each having an inner chamber intended to be crossed by an operating heat exchange fluid, the reactor being characterized in that it comprises means (17, 18) for picking up samples of operating heat exchange fluid from groups (16) of pre-established exchangers in each heat exchange unit (13), so as to ascertain the possible existence of damaged exchangers (14) in said groups (16) of exchangers through analysis of respective samples of operating heat exchange fluid. The invention also concerns a method for detecting the existence of damaged heat exchangers in an isothermal reactor of the aforementioned type.

    Abstract translation: 本发明涉及一种等温反应器(1),该等温反应器(1)包括压力容器(2),所述压力容器(2)在相对端通过各自的底部(3,4)封闭,所述压力容器(2)中的反应区(9) 篮子(10)被定位,并且至少一个热交换单元(13)嵌入在所述至少一个催化篮(10)中,每个热交换单元(13)包括多个热交换器(14),每个热交换器具有内室 意图由工作的热交换流体穿过,反应器的特征在于其包括用于从每个热交换单元中的预先建立的交换器的组(16)拾取操作的热交换流体的样品的装置(17,18) 以便通过分析各个操作的热交换流体的样品来确定所述组(16)中交换器的损坏的交换器(14)的可能存在。 本发明还涉及一种用于检测上述类型的等温反应器中受损热交换器的存在的方法。

    METHOD AND REACTOR FOR THE PREPARATION OF METHANOL
    9.
    发明申请
    METHOD AND REACTOR FOR THE PREPARATION OF METHANOL 有权
    用于制备甲醇的方法和反应器

    公开(公告)号:US20120269697A1

    公开(公告)日:2012-10-25

    申请号:US13524910

    申请日:2012-06-15

    Applicant: Max Thorhauge

    Inventor: Max Thorhauge

    Abstract: Improved design of a catalytic method and reactor for the production of methanol at equilibrium conditions, whereby methanol, as it is formed, is separated from the gaseous phase into the liquid phase within the reactor without reducing the catalytic activity of the methanol catalyst. This is achieved by adjusting the boiling point or temperature of a liquid cooling agent being in indirect contact with the catalyst particles and by providing a specific ratio of catalyst bed volume to cooling surface area. Thereby, condensation of methanol as it is formed in the gaseous phase takes place for the most at the cooling surface arranged evenly distributed within the reactor and if at all within a very limited region of the catalyst bed.

    Abstract translation: 用于在平衡条件下生产甲醇的催化方法和反应器的改进设计,其中形成的甲醇在反应器内从气相中分离成液相而不降低甲醇催化剂的催化活性。 这是通过调节与催化剂颗粒间接接触的液体冷却剂的沸点或温度,并通过提供催化剂床体积与冷却表面积的特定比例来实现的。 因此,在气相中形成的甲醇的冷凝最多发生在均匀分布在反应器内的冷却表面,如果完全在催化剂床的非常有限的区域内。

    Plate Heat Exchanger for Isothermal Chemical Reactors
    10.
    发明申请
    Plate Heat Exchanger for Isothermal Chemical Reactors 有权
    等温化学反应堆板式换热器

    公开(公告)号:US20120114530A1

    公开(公告)日:2012-05-10

    申请号:US13383787

    申请日:2010-07-07

    Abstract: A radial-flow plate heat exchanger (5) embedded in the catalytic bed of an isothermal chemical reactor (1) has heat exchange plates (10) comprising fluid passages (13) between a first metal sheet (20) and a second metal sheet (21) joined by perimeter weld seams (23) on a first surface (A) of the plate, a feeding channel (14) and a collecting channel (15) for the heat exchange fluid are formed with suitable metal sheets which are seam welded (25) directly to the opposite surface (B) of the plate, this structure allows the manufacturing of the plate (10) with an automated seam welding process, such as laser beam welding.

    Abstract translation: 嵌入在等温化学反应器(1)的催化床中的径向流板式热交换器(5)具有热交换板(10),其包括在第一金属板(20)和第二金属板(20)之间的流体通道(13) 21),其在板的第一表面(A)上由周边焊缝(23)连接,用于热交换流体的进料通道(14)和收集通道(15)由适当的金属板形成, 25)直接连接到板的相对表面(B),这种结构允许用自动缝焊工艺(例如激光束焊接)来制造板(10)。

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