ENDOTHERMIC REACTIONS HEATED BY RESISTANCE HEATING

    公开(公告)号:US20210113983A1

    公开(公告)日:2021-04-22

    申请号:US17054572

    申请日:2019-05-15

    摘要: A reactor system for carrying out an endothermic reaction of a feed gas, including: a structured catalyst arranged for catalyzing the endothermic reaction of a feed gas, the structured catalyst including a macroscopic structure of electrically conductive material, the macroscopic structure supporting a ceramic coating, wherein the ceramic coating supports a catalytically active material; a pressure shell housing the structured catalyst; heat insulation layer between the structured catalyst and the pressure shell; at least two conductors electrically connected to the electrically conductive material and to an electrical power supply placed outside the pressure shell, wherein the electrical power supply is dimensioned to heat at least part of said structured catalyst to a temperature of at least 200° C. by passing an electrical current through the electrically conductive material. Also, a process for performing an endothermic reaction of a feed gas.

    Method of dehydrocyclizing aliphatic hydrocarbons
    7.
    发明授权
    Method of dehydrocyclizing aliphatic hydrocarbons 失效
    脱氢环化脂族烃的方法

    公开(公告)号:US4104320A

    公开(公告)日:1978-08-01

    申请号:US718584

    申请日:1976-08-30

    摘要: This invention relates to a method of dehydrocyclizing aliphatic hydrocarbons to form corresponding aromatic hydrocarbons. According to the invention, a batch of aliphatic hydrocarbons, in the presence of hydrogen at a temperature of 430.degree. to 550.degree. C is passed over a catalyst consisting essentially of a type L zeolite having exchangeable cations of which at least 90% are alkali metal ions selected from the group consisting of ions of sodium, lithium, potassium, rubidium and caesium and containing at least one metal selected from the group which consists of metals of groups VIII of the periodic table of elements, tin and germanium, said metal or metals including at least one metal from group VIII of said periodic table having a dehydrogenating effect, so as to convert at least part of the batch into aromatic hydrocarbons. The aliphatic hydrocarbons preferably contain 6 - 10 carbon atoms.

    摘要翻译: 本发明涉及一种脱氢环化脂族烃以形成相应芳族烃的方法。 根据本发明,在氢气存在下,在430℃至550℃的温度下,一批脂族烃通过催化剂,该催化剂基本上由具有可交换阳离子的L型沸石组成,其中至少90%是碱金属 选自钠,锂,钾,铷和铯的离子的离子,并且含有至少一种选自元素周期表第Ⅷ族金属,锡和锗的金属,所述金属或金属 包括至少一种具有脱氢作用的所述周期表第VIII族金属,从而将至少部分批料转化为芳族烃。 脂族烃优选含有6-10个碳原子。

    Process for producing propylene and aromatics from butenes by metathesis and aromatization
    9.
    发明授权
    Process for producing propylene and aromatics from butenes by metathesis and aromatization 有权
    通过复分解和芳构化从丁烯生产丙烯和芳族化合物的方法

    公开(公告)号:US08722950B2

    公开(公告)日:2014-05-13

    申请号:US12767080

    申请日:2010-04-26

    IPC分类号: C07C5/393 C07C6/04

    摘要: The invention is for a process for producing propylene and hexene (along with ethylene, pentenes, product butenes, heptenes and octenes) by metathesis from butenes (iso-, 1- and cis and trans 2-) and pentenes and then aromatizing the hexenes (along with higher olefins, such as heptenes and octenes) to benzene (along with toluene, xylenes, ethylbenzene and styrene). Since the desired products of the metathesis reaction are propylene and hexene, the feed to the metathesis reaction has a molar ratio for 1-butene:2-butene which favors production of propylene and 3-hexene with the concentration of hexenes and higher olefins in the metathesis product being up to 30 mole %. An isomerization reactor may be used to obtain the desired molar ratio of 1-butene:2-butene for the feed composition into the metathesis reactor. After the metathesis reaction, of hexene and higher olefins are separated for aromatization to benzene and other aromatics.

    摘要翻译: 本发明涉及一种通过从丁烯(异 - ,1-和顺 - 和反式2-)和戊烯进行复分解,然后使己烯芳构化而生产丙烯和己烯(连同乙烯,戊烯,产物丁烯,庚烯和辛烯) 以及高级烯烃,如庚烯和辛烯)与苯(连同甲苯,二甲苯,乙苯和苯乙烯)。 由于复分解反应的所需产物是丙烯和己烯,所以复分解反应的进料具有1-丁烯:2-丁烯的摩尔比,其有利于生产丙烯和3-己烯,其中烯烃和高级烯烃的浓度在 复分解产物高达30%(摩尔)。 可以使用异构化反应器来获得用于进料组合物中复分解反应器中所需的1-丁烯:2-丁烯的摩尔比。 在复分解反应之后,分离己烯和较高级烯烃,使之芳构化成苯和其它芳族化合物。

    Apparatus for endothermic reactions of organic compounds
    10.
    发明授权
    Apparatus for endothermic reactions of organic compounds 失效
    有机化合物吸热反应装置

    公开(公告)号:US06872364B2

    公开(公告)日:2005-03-29

    申请号:US10331367

    申请日:2002-12-30

    摘要: An apparatus for conducting an endothermic reaction of an organic' compound in the presence of molecular hydrogen and of multicomponent solids is described. The process of operating the apparatus comprises contacting the compound with a solid catalyst for the endothermic reaction and a hydrogen oxidizing solid reagent intermixed with the solid catalyst. Organic products of the endothermic reaction are produced, with evolution of molecular hydrogen. The solid catalyst becomes gradually deactivated by formation of carbonaceous deposits thereon. The evolved hydrogen undergoes an exothermic reaction with the hydrogen oxidizing solid reagent to form a reduction product which comprises deactivated hydrogen oxidizing solid reagent. The deactivated solid catalyst is reactivated by combustion of carbonaceous deposits thereon and the deactivated hydrogen oxidizing solid reagent is reactivated by contacting the reagent with an oxidizing agent in the absence of substantial quantities of hydrogen and in the absence of substantial quantities of organic compounds other than those on the surface of the reagent. The apparatus provides an endothermic reaction which is carried out in the presence of a fluidized bed of catalyst and in the presence of particles of granular hydrogen oxidizing solid reagent which move downwardly through the fluidized catalyst bed, and in which the solid catalyst and solid reagent are separated prior to reactivation thereof in separate reactivation zones.

    摘要翻译: 描述了在分子氢和多组分固体存在下进行有机化合物的吸热反应的装置。 操作该装置的过程包括使化合物与用于吸热反应的固体催化剂和与固体催化剂混合的氢氧化固体试剂接触。 随着分子氢的发展,产生吸热反应的有机产物。 固体催化剂通过在其上形成碳质沉积物而逐渐失活。 放出的氢气经历与氢氧化固体试剂的放热反应,形成还原产物,其包含失活的氢氧化固体试剂。 失活的固体催化剂通过其上的碳质沉积物的燃烧而再活化,并且通过在不存在大量氢气的情况下将试剂与氧化剂接触并且在不存在大量的除了那些之外的大量有机化合物的情况下,使失活的氢氧化固体试剂再活化 在试剂的表面。 该装置提供吸热反应,其在催化剂的流化床存在下和在向下移动通过流化催化剂床的颗粒氢氧化固体试剂存在下进行,其中固体催化剂和固体试剂为 在分离的再活化区域中再分离。