Process for the production of alkyl ethers by the etherification of isobutene
    1.
    发明授权
    Process for the production of alkyl ethers by the etherification of isobutene 有权
    通过异丁烯醚化生产烷基醚的方法

    公开(公告)号:US09403744B2

    公开(公告)日:2016-08-02

    申请号:US12373730

    申请日:2007-07-12

    IPC分类号: C07C41/01 C07C41/06

    CPC分类号: C07C41/06 C07C43/046

    摘要: Process for the production of alkyl ethers by the etherification of isobutene, contained in C4-C5 hydrocarbon streams, with linear alcohol, in the presence of acid catalysts, comprising the following essential steps: a) feeding the isobutene contained in C4-C5 hydrocarbon cuts, together with one or more streams containing linear alcohol, to a first reaction step; b) sending the stream leaving the first reaction step to a first distillation area, separating a light stream from a heavy stream containing the desired ether; c) feeding the light stream separated in the first distillation area, together with one or more streams containing linear alcohol, to a second reaction step; d) sending the stream leaving the second reaction step to a second distillation area separating a light stream from a heavy stream containing ether, C4 hydrocarbons and alcohol which is recycled to the first distillation area; e) sending the light stream in the second distillation area to a recovery section of the linear alcohol contained therein; f) recycling the linear alcohol recovered in the recovery section to at least one of the two reaction steps. The present invention relates to plant solutions which allow the alcohol/isobutene molar ratio to be increased in the reaction steps and therefore maximizing the conversion of isobutene.

    摘要翻译: 通过在酸性催化剂存在下,用线性醇在C4-C5烃流中醚化异丁烯来生产烷基醚的方法,包括以下必要步骤:a)将包含在C 4 -C 5烃馏分中的异丁烯 与一种或多种含有线性醇的料流一起加到第一反应步骤; b)将离开第一反应步骤的料流送至第一蒸馏区域,从含有所需醚的重质流中分离出轻质物流; c)将在第一蒸馏区域中分离的轻质流与一种或多种含有线性醇的料流一起送入第二反应步骤; d)将离开第二反应步骤的料流送至第二蒸馏区域,该第二蒸馏区域将来自含有醚,C4烃和醇的重质流的轻质流与循环至第一蒸馏区的分离; e)将第二蒸馏区域中的轻质流送入其中所含的直链醇的回收段; f)将回收部分中回收的线性醇再循环到两个反应步骤中的至少一个。 本发明涉及允许反应步骤中醇/异丁烯摩尔比增加并因此使异丁烯转化率最大化的植物溶液。

    PROCESS FOR THE PRODUCTION OF ALKYL ETHERS BY THE ETHERIFICATION OF ISOBUTENE
    2.
    发明申请
    PROCESS FOR THE PRODUCTION OF ALKYL ETHERS BY THE ETHERIFICATION OF ISOBUTENE 有权
    通过ISOBUTENE进行生产烷基醚的方法

    公开(公告)号:US20090253942A1

    公开(公告)日:2009-10-08

    申请号:US12373730

    申请日:2007-07-12

    IPC分类号: C07C41/01

    CPC分类号: C07C41/06 C07C43/046

    摘要: Process for the production of alkyl ethers by the etherification of isobutene, contained in C4-C5 hydrocarbon streams, with linear alcohol, in the presence of acid catalysts, comprising the following essential steps: a) feeding the isobutene contained in C4-C5 hydrocarbon cuts, together with one or more streams containing linear alcohol, to a first reaction step; b) sending the stream leaving the first reaction step to a first distillation area, separating a light stream from a heavy stream containing the desired ether; c) feeding the light stream separated in the first distillation area, together with one or more streams containing linear alcohol, to a second reaction step; d) sending the stream leaving the second reaction step to a second distillation area separating a light stream from a heavy stream containing ether, C4 hydrocarbons and alcohol which is recycled to the first distillation area; e) sending the light stream in the second distillation area to a recovery section of the linear alcohol contained therein; f) recycling the linear alcohol recovered in the recovery section to at least one of the two reaction steps. The present invention relates to plant solutions which allow the alcohol/isobutene molar ratio to be increased in the reaction steps and therefore maximizing the conversion of isobutene.

    摘要翻译: 通过在酸性催化剂存在下,用线性醇在C4-C5烃流中醚化异丁烯来生产烷基醚的方法,包括以下必要步骤:a)将包含在C 4 -C 5烃馏分中的异丁烯 与一种或多种含有线性醇的料流一起加到第一反应步骤; b)将离开第一反应步骤的料流送至第一蒸馏区域,从含有所需醚的重质流中分离出轻质物流; c)将在第一蒸馏区域中分离的轻质流与一种或多种含有线性醇的料流一起送入第二反应步骤; d)将离开第二反应步骤的料流送至第二蒸馏区域,该第二蒸馏区域将来自含有醚,C4烃和醇的重质流的轻质流与循环至第一蒸馏区的分离; e)将第二蒸馏区域中的轻质流送入其中所含的直链醇的回收段; f)将回收部分中回收的线性醇再循环到两个反应步骤中的至少一个。 本发明涉及允许反应步骤中醇/异丁烯摩尔比增加并因此使异丁烯转化率最大化的植物溶液。

    Modified tubular reactor and process for effecting catalytic reactions involving thermal exchanges in which it is used
    4.
    发明授权
    Modified tubular reactor and process for effecting catalytic reactions involving thermal exchanges in which it is used 有权
    改进的管式反应器和用于进行涉及使用热交换的催化反应的方法

    公开(公告)号:US09233352B2

    公开(公告)日:2016-01-12

    申请号:US12673317

    申请日:2008-08-07

    摘要: A tubular reactor is described, for catalytic reactions involving thermal exchanges, in particular for etherification reactions between branched olefins and linear alcohol, for dimerization reactions of branched olefins or cracking reactions, essentially consisting of a vertical tube-bundle exchanger whose tubes contain catalyst, having inlet and outlet nozzles for each passage side of the reagents, catalyst and thermal exchange liquid, characterized in that it has one or more metallic supports situated outside the lower tube plate in the lower part of the reactor for sustaining the catalyst so that the same catalyst is contained not only in the tubes of the tube-bundle but also in said lower part outside the lower tube plate and also in the upper part outside the upper tube plate.

    摘要翻译: 描述了一种管式反应器,用于涉及热交换的催化反应,特别是用于支链烯烃和直链醇之间的醚化反应,用于支化烯烃或裂解反应的二聚反应,主要由其管含有催化剂的垂直管束交换器组成, 用于试剂,催化剂和热交换液体的每个通道侧的入口和出口喷嘴,其特征在于,其具有位于反应器下部的下管板外侧的一个或多个金属载体,用于维持催化剂,使得相同的催化剂 不仅包含在管束的管中,而且还包含在下管板外的所述下部以及上管板外部的上部。

    PROCESS FOR OBTAINING HIGH-PURITY 1-BUTENE FROM C4 HYDROCARBON MIXTURES
    6.
    发明申请
    PROCESS FOR OBTAINING HIGH-PURITY 1-BUTENE FROM C4 HYDROCARBON MIXTURES 审中-公开
    从C4油气混合物中获得高纯度1-丁烯的方法

    公开(公告)号:US20120010451A1

    公开(公告)日:2012-01-12

    申请号:US13144101

    申请日:2010-01-11

    IPC分类号: C07C1/20

    摘要: A process is described for obtaining high-purity 1-butene starting from C4 hydrocarbon mixtures containing isobutene, n-butane, isobutane, 1,3-butadiene, 1-butene, 2-butenes and also optionally C3 and C5 hydrocarbons, comprising the following stages: conversion of isobutene effected in a double stage, wherein each stage consists of one or more reactors followed by a distillation column for the recovery of the reaction product; recovery of the excess alcohol; recovery of 1-butene using at least two distillation columns; characterised in that it also uses a further conversion stage, consisting of one or more reactors in series, for completing the isobutene removal.

    摘要翻译: 描述了从含有异丁烯,正丁烷,异丁烷,1,3-丁二烯,1-丁烯,2-丁烯以及任选的C 3和C 5烃的C 4烃混合物开始获得高纯度1-丁烯的方法,其包括以下 阶段:在双阶段中进行异丁烯的转化,其中每个阶段由一个或多个反应器组成,随后是用于回收反应产物的蒸馏塔; 回收过量酒精; 使用至少两个蒸馏塔回收1-丁烯; 其特征在于它还使用由串联的一个或多个反应器组成的进一步的转化阶段,用于完成异丁烯的去除。

    Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends containing branched olefinic cuts
    8.
    发明申请
    Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends containing branched olefinic cuts 有权
    通过氢化含有支链烯烃切割的烃共混物生产具有高辛烷值的烃共混物的方法

    公开(公告)号:US20050077211A1

    公开(公告)日:2005-04-14

    申请号:US10745512

    申请日:2003-12-29

    摘要: Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends, containing branched C8, C12 and C16 olefinic cuts, characterized by sending said blends, as such or fractionated into two streams, one substantially containing the branched C8 olefinic cut, the other substantially containing the branched C12 and C16 olefinic cuts, to a single hydrogenation zone or to two hydrogenation zones in parallel, respectively, only the stream substantially containing saturated C8 hydrocarbons, obtained by the fractionation of the stream produced by the single hydrogenation zone or obtained by the hydrogenation zone fed by the fractionated stream substantially containing the branched C8 olefinic cut, being at least partly recycled to the single hydrogenation zone or to the hydrogenation zone fed by the fractionated stream substantially containing the branched C8 olefinic cut, and the hydrocarbon blend with a high octane number, obtained by the fractionation of the stream produced from the single hydrogenation zone or obtained from the hydrogenation zone, being fed by the fractionated stream substantially containing the branched C12 and C16 olefinic cuts.

    摘要翻译: 通过含有支链C8,C12和C16烯烃切割的烃共混物的氢化制备具有高辛烷值的烃共混物的方法,其特征在于将本发明的共混物原样送入或分馏成两股,基本上含有支链C8烯烃 将基本上含有支链C 12和C 16烯烃切口的另一个分别切割到单个氢化区或平行的两个氢化区,仅基本上含有饱和C 8烃的流,通过单一氢化产生的流的分馏获得 通过由基本上含有支链C8烯烃切割物的分馏流体进料的氢化区获得,至少部分地再循环到单个氢化区或由基本上含有支链C8烯烃切割物的分馏流体进料的氢化区, 具有高辛烷值的烃共混物,通过fr获得 由单一氢化区产生或从氢化区获得的物流的作用,由基本上含有支链C12和C16烯烃切割物的分馏流进料。

    MODIFIED TUBULAR REACTOR AND PROCESS FOR EFFECTING CATALYTIC REACTIONS INVOLVING THERMAL EXCHANGES IN WHICH IT IS USED
    10.
    发明申请
    MODIFIED TUBULAR REACTOR AND PROCESS FOR EFFECTING CATALYTIC REACTIONS INVOLVING THERMAL EXCHANGES IN WHICH IT IS USED 有权
    改进的管状反应器和用于影响涉及使用热交换器的催化反应的方法

    公开(公告)号:US20110213186A1

    公开(公告)日:2011-09-01

    申请号:US12673317

    申请日:2008-08-07

    IPC分类号: C07C41/06 B01J8/06

    摘要: A tubular reactor is described, for catalytic reactions involving thermal exchanges, in particular for etherification reactions between branched olefins and linear alcohol, for dimerization reactions of branched olefins or cracking reactions, essentially consisting of a vertical tube-bundle exchanger whose tubes contain catalyst, having inlet and outlet nozzles for each passage side of the reagents, catalyst and thermal exchange liquid, characterized in that it has one or more metallic supports situated outside the lower tube plate in the lower part of the reactor for sustaining the catalyst so that the same catalyst is contained not only in the tubes of the tube-bundle but also in said lower part outside the lower tube plate and also in the upper part outside the upper tube plate.

    摘要翻译: 描述了一种管式反应器,用于涉及热交换的催化反应,特别是用于支链烯烃和直链醇之间的醚化反应,用于支化烯烃或裂解反应的二聚反应,主要由其管含有催化剂的垂直管束交换器组成, 用于试剂,催化剂和热交换液体的每个通道侧的入口和出口喷嘴,其特征在于,其具有位于反应器下部的下管板外侧的一个或多个金属载体,用于维持催化剂,使得相同的催化剂 不仅包含在管束的管中,而且还包含在下管板外的所述下部以及上管板外部的上部。