Process for preparing acetylene by the Sachsse-Bartholomé process
    2.
    发明授权
    Process for preparing acetylene by the Sachsse-Bartholomé process 有权
    通过Sachsse-Bartholomé工艺制备乙炔的方法

    公开(公告)号:US08975460B2

    公开(公告)日:2015-03-10

    申请号:US13183683

    申请日:2011-07-15

    IPC分类号: C07C5/02 C07C5/03 C07C2/78

    CPC分类号: C07C2/78 C07C11/24

    摘要: A process is proposed for preparing acetylene by the Sachsse-Bartholomé process by combustion of a natural gas/oxygen mixture in one or more burners to obtain a cracking gas which is cooled in two or more stages in burner columns, each burner having one or more burner columns assigned thereto, and said cracking gas being quenched with pyrolysis oil in the first cooling stage, to obtain a low boiler fraction comprising benzene, toluene and xylene from the one or more burner columns, which is cooled with direct cooling water and separated in a phase separator into an aqueous phase and an organic phase which comprises benzene, toluene and xylene and is fully or partly introduced to the top of the one or more burner columns as a return stream, wherein the organic phase comprising benzene, toluene and xylene from the phase separator, prior to full or partial recycling to the top of the one or more burner columns, is supplied to a selective hydrogenation over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as support, comprising 0.05 to 5% by weight of platinum group metal, based on the total weight of the catalyst, and wherein the selective hydrogenation is performed at a pressure in the range from 10 to 70 bar gauge and a temperature in the range from 0 to 100° C.

    摘要翻译: 提出了一种通过Sachsse-Bartholomé方法通过在一个或多个燃烧器中燃烧天然气/氧气混合物来制备乙炔的方法,以获得在燃烧器柱中两级或更多级冷却的裂化气体,每个燃烧器具有一个或多个 燃烧器列,并且在第一冷却阶段,所述裂解气体用热解油淬火,以从一个或多个燃烧器柱获得包含苯,甲苯和二甲苯的低沸点馏分,其用直接冷却水冷却并分离 相分离器进入水相和有机相,其包含苯,甲苯和二甲苯,并作为回流完全或部分地引入到一个或多个燃烧器塔的顶部,其中有机相包含苯,甲苯和二甲苯 在完全或部分再循环到一个或多个燃烧器塔的顶部之前,将相分离器供应到催化剂上的选择性氢化,所述催化剂包括在l 在一个无机金属氧化物上的一个铂族金属作为载体,包含0.05-5重量%的铂族金属,基于催化剂的总重量,其中选择性氢化在10〜 70巴规,温度范围为0至100℃。

    PROCESS FOR HYDROGENATING NITRILES
    3.
    发明申请
    PROCESS FOR HYDROGENATING NITRILES 审中-公开
    加氢处理方法

    公开(公告)号:US20120245389A1

    公开(公告)日:2012-09-27

    申请号:US13427308

    申请日:2012-03-22

    IPC分类号: C07C209/48

    摘要: The present invention relates to a process for hydrogenating organic nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the shaped body catalyst is arranged in a fixed bed, wherein the shaped body in the shape of spheres or rods has in each case a diameter 3 mm or less, in the shape of tablets a height of 4 mm or less, and in the case of all other geometries in each case has an equivalent diameter L=1/a′ of 0.70 mm or less, where a′ is the external surface area per unit volume (mms2/mmp3), where: a ′ = A p V p , where Ap is the external surface area of the catalyst particle (mms2) and Vp is the volume of the catalyst particle (mmp3). The present invention further relates to a process for preparing downstream products of isophoronediamine (IPDA) or N,N-dimethylaminopropylamine (DMAPA) from amines prepared according to the invention.

    摘要翻译: 本发明涉及一种在反应器中催化剂存在下通过氢气氢化有机腈的方法,其中成形体催化剂布置在固定床中,其中球体或棒状的成形体具有 每个壳体的直径为3mm以下,片状形状为4mm以下,在各种情况下,所有其他几何形状的等效直径L = 1 / a'为0.70mm以下,其中 a'是每单位体积的外表面积(mms2 / mmp3),其中:a'= A p V p,其中Ap是催化剂颗粒的外表面积(mms2),Vp是催化剂颗粒的体积 mmp3)。 本发明还涉及由根据本发明制备的胺制备异佛尔酮二胺(IPDA)或N,N-二甲基氨基丙胺(DMAPA)的下游产物的方法。

    Method for producing alkyl-aromatic compounds by direct alkylation of aromatic hydrocarbons with alkanes
    10.
    发明申请
    Method for producing alkyl-aromatic compounds by direct alkylation of aromatic hydrocarbons with alkanes 审中-公开
    通过芳族烃与烷烃直接烷基化生产烷基芳族化合物的方法

    公开(公告)号:US20090134066A1

    公开(公告)日:2009-05-28

    申请号:US11659422

    申请日:2005-08-04

    IPC分类号: C10G35/06 C07C2/58

    摘要: The present invention relates to a process for preparing alkylaromatics by reacting aromatic compounds with C1-C14-alkanes in the presence of a heterogeneous catalyst, which comprises using as the catalyst a crystalline, micro- and/or mesoporous solid comprising silicon and at least one father element selected from the group consisting of the transition metals and the main group elements gallium and tin, and activating said catalysts by a reducing pretreatment. Furthermore, the present invention relates to a process for preparing alkylarylsulfonates by sulfonating and neutralizing the alkyl aromatic compounds.

    摘要翻译: 本发明涉及在非均相催化剂存在下使芳族化合物与C 1 -C 14烷烃反应制备烷基芳族化合物的方法,该方法包括使用包含硅和至少一种以上的硅的结晶,微孔和/或介孔固体作为催化剂 父元素选自过渡金属和主要元素镓和锡,并通过还原预处理活化所述催化剂。 此外,本发明涉及通过磺化和中和烷基芳族化合物来制备烷基芳基磺酸盐的方法。