PROCESS FOR THE SELECTIVE HYDROGENATION OF ACETYLENE TO ETHYLENE
    2.
    发明申请
    PROCESS FOR THE SELECTIVE HYDROGENATION OF ACETYLENE TO ETHYLENE 审中-公开
    乙烯选择性氢化成乙烯的方法

    公开(公告)号:US20150353448A1

    公开(公告)日:2015-12-10

    申请号:US14298041

    申请日:2014-06-06

    申请人: UOP LLC

    IPC分类号: C07C5/09

    摘要: A process for a liquid phase selective hydrogenation of acetylene to ethylene in a reaction zone. In order to decrease the selectivity to C4+ hydrocarbons, the concentration of acetylene in solvent is lowered by recycling solvent, using a split feed injection, or both. The streams can be split in to equal or unequal portions. A hot separator may be used to separate solvent from the reactor effluent, and the solvent may be recovered and used to decrease the concentration of acetylene in the solvent.

    摘要翻译: 在反应区中乙炔液相选择性氢化成乙烯的方法。 为了降低对C4 +烃的选择性,通过循环溶剂,使用分批进料注入或两者来降低溶剂中乙炔的浓度。 流可以分成相等或不相等的部分。 可以使用热分离器将溶剂与反应器流出物分离,并且可以回收溶剂并将其用于降低溶剂中乙炔的浓度。

    One-step method for butadiene production
    3.
    发明授权
    One-step method for butadiene production 有权
    丁二烯生产的一步法

    公开(公告)号:US08921635B2

    公开(公告)日:2014-12-30

    申请号:US13812310

    申请日:2011-07-27

    IPC分类号: C07C1/20 C07C11/16 C07C1/207

    摘要: This invention relates to gas-phase synthesis of butadiene from ethanol or ethanol and acetaldehyde mixture. The method of synthesis includes ethanol or ethanol and acetaldehyde mixture conversion in the presence of a catalyst, which differs from the known methods by the carrying out of the interaction in the presence of the solid catalyst, which contains metal, chosen from the group of silver, gold or copper, and metal oxide, chosen from the group of magnesium, titanium, zirconium, tantalum or niobium oxides. The method announced is used for condensation process under the conditions of continuous flow fixed bed reactor. The invention allows to reach high yield and selectivity to butadiene and high level of conversion of the feed.

    摘要翻译: 本发明涉及从乙醇或乙醇和乙醛混合物中气相合成丁二烯。 合成方法包括在催化剂存在下的乙醇或乙醇和乙醛混合物的转化,其与已知方法不同,在固体催化剂存在下进行相互作用,所述固体催化剂含有选自银的金属 ,金或铜以及选自镁,钛,锆,钽或铌氧化物的金属氧化物。 在连续流动固定床反应器条件下,该方法用于冷凝工艺。 本发明允许达到对丁二烯的高产率和选择性以及进料的高水平转化。

    Hydrogen transport membranes for dehydrogenation reactions
    9.
    发明申请
    Hydrogen transport membranes for dehydrogenation reactions 有权
    用于脱氢反应的氢传输膜

    公开(公告)号:US20100290961A1

    公开(公告)日:2010-11-18

    申请号:US12009969

    申请日:2008-01-23

    IPC分类号: B01J35/04

    摘要: A method of converting C2 and/or higher alkanes to olefins by contacting a feedstock containing C2 and/or higher alkanes with a first surface of a metal composite membrane of a sintered homogenous mixture of an Al oxide or stabilized or partially stabilized Zr oxide ceramic powder and a metal powder of one or more of Pd, Nb, V, Zr, Ta and/or alloys or mixtures thereof. The alkanes dehydrogenate to olefins by contact with the first surface with substantially only atomic hydrogen from the dehydrogenation of the alkanes passing through the metal composite membrane. Apparatus for effecting the conversion and separation is also disclosed.

    摘要翻译: 将C2和/或高级烷烃转化为烯烃的方法是将含有C2和/或高级烷烃的原料与Al氧化物或稳定或部分稳定的Zr氧化物陶瓷粉末的烧结同质混合物的金属复合膜的第一表面接触 以及Pd,Nb,V,Zr,Ta和/或其合金或其混合物中的一种或多种的金属粉末。 烷烃通过与通过金属复合膜的烷烃的脱氢基本上仅与原子氢接触而与第一表面接触而脱氢成烯烃。 还公开了用于实现转换和分离的装置。