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    Processes and Systems for Converting Hydrocarbons to Cyclopentadiene
    4.
    发明申请
    Processes and Systems for Converting Hydrocarbons to Cyclopentadiene 有权

    公开(公告)号：US20170121255A1

    公开(公告)日：2017-05-04

    申请号：US15288459

    申请日：2016-10-07

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Larry L. Iaccino

    IPC: C07C5/373 ,  B01J29/44

    CPC classification number: C07C5/373 ,  B01J29/44 ,  B01J29/63 ,  B01J29/90 ,  C07C2101/10 ,  C07C2529/44 ,  C07C2601/10 ,  Y02P20/584 ,  Y02P20/588 ,  C07C13/15

    Abstract: This invention relates to a process for converting acyclic C5 hydrocarbons to cyclopentadiene including: providing to the at least one adiabatic reaction zone a feedstock comprising acyclic C5 hydrocarbons at a temperature, T1, wherein the at least one adiabatic reaction zone comprises a first particulate material comprising catalyst material; contacting the feedstock and the first particulate material in the at least one adiabatic reaction zone under reaction conditions to convert at least a portion of the acyclic C5 hydrocarbons to a first effluent comprising cyclopentadiene intermediates, unconverted acyclic C5 hydrocarbons, and, optionally, cyclopentadiene; heating the first effluent to a temperature, T2; providing the first effluent to the at least one diabatic reaction zone; and contacting the first effluent and a second particulate material comprising catalyst material in the at least one diabatic reaction zone under reaction conditions to convert at least a portion of the cyclopentadiene intermediates and the unconverted acyclic C5 hydrocarbons to a second effluent comprising cyclopentadiene.

    Catalyst for the Synthesis of Dimethyl Carbonate in the Gas Phase
    8.
    发明申请
    Catalyst for the Synthesis of Dimethyl Carbonate in the Gas Phase 审中-公开
    在气相中合成碳酸二甲酯的催化剂

    公开(公告)号：US20080249327A1

    公开(公告)日：2008-10-09

    申请号：US11814543

    申请日：2006-01-23

    Applicant: Reinhard Eckelt ,  Martin J.G. Fait ,  Rolf Fricke ,  Manfred Richter

    Inventor： Reinhard Eckelt ,  Martin J.G. Fait ,  Rolf Fricke ,  Manfred Richter

    IPC: C07C68/00 ,  C01B39/02

    CPC classification number: B01J29/146 ,  B01J29/072 ,  B01J29/143 ,  B01J29/24 ,  B01J29/46 ,  B01J29/63 ,  B01J29/76 ,  B01J29/7615 ,  B01J29/7623 ,  B01J37/08 ,  C07C68/005 ,  C07C69/96

    Abstract: The invention relates to an improved catalyst for the synthesis of dimethyl carbonate by reacting methanol, carbon monoxide and oxygen in the gas phase and to the use thereof. The catalyst consists of a copper-containing zeolite produced by admixing one or more halide-free copper(II) compounds to a zeolite in a liquid medium, drying the zeolite modified by the admixture, and tempering at 400-900° C. under inert conditions, essentially retaining the crystallinity of the zeolite, said admixing being effected by means of a method selected from the group consisting of impregnation of the zeolite, ion exchange, precipitation of copper(II) hydroxide in the presence of the zeolite, and a combination of these methods. The catalyst shows high space-time yields, is constant over the period of operation and has no corrosive action.

    Abstract translation: 本发明涉及通过甲醇，一氧化碳和氧在气相中反应合成碳酸二甲酯的改进催化剂及其用途。 该催化剂由一种含铜沸石组成，其通过将一种或多种无卤化物铜（II）化合物混合到液体介质中的沸石上进行干燥，干燥由该混合物改性的沸石，并在惰性气氛下在400-900℃回火 条件，基本上保持沸石的结晶度，所述混合通过选自浸渍沸石，离子交换，在沸石存在下沉淀氢氧化铜（II）的方法和组合 的这些方法。 催化剂显示出高的空时收率，在操作期间是恒定的，并且没有腐蚀作用。

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