Light hydrocarbon separation using 8-member ring zeolites
    3.
    发明授权
    Light hydrocarbon separation using 8-member ring zeolites 有权
    使用8元环型沸石轻烃分离

    公开(公告)号:US07332640B2

    公开(公告)日:2008-02-19

    申请号:US10699258

    申请日:2003-10-31

    IPC分类号: C07C7/12

    CPC分类号: C07C7/13 C07C11/06 C07C9/08

    摘要: The present invention is related to a method for kinetically separating a light hydrocarbon mixture comprising at least two components by preferentially adsorbing a first component on a zeolite adsorbent comprising 8-member rings of tetrahedra as the pore opening controlling hydrocarbon diffusion and alkali metal cations balancing a framework charge, wherein a second component is not preferentially adsorbed. The novel process comprises contacting the light hydrocarbon mixture with a zeolite adsorbent having a SiO2/Al2O3 ratio greater than about 50 and less than 200 and further having a diffusion rate at least 50 times greater for the first component as compared to the second component, and then recovering at least one of the first component or the second component.

    摘要翻译: 本发明涉及一种用于动态分离含有至少两种组分的轻质烃混合物的方法,该轻质烃混合物优先吸附在包含八元环四面体的沸石吸附剂上的第一组分,作为开孔控制烃扩散和碱金属阳离子平衡 框架电荷,其中第二组分不被优先吸附。 该新方法包括使轻质烃混合物与沸石吸附剂接触,所述沸石吸附剂具有大于约50或更小的SiO 2 / Al 2 O 3 并且与第二组分相比,第一组分的扩散速率至少为50倍,然后回收第一组分或第二组分中的至少一种。

    Double bond isomerization of olefin-containing feeds with minimal
oligomerization using permanently surface acidity deactivated zeolite
catalysts
    9.
    发明授权
    Double bond isomerization of olefin-containing feeds with minimal oligomerization using permanently surface acidity deactivated zeolite catalysts 失效
    使用永久表面酸性失活的沸石催化剂,使含烯烃进料的双键异构化以最小的低聚反应

    公开(公告)号:US5304695A

    公开(公告)日:1994-04-19

    申请号:US20947

    申请日:1993-02-22

    IPC分类号: C07C5/25

    CPC分类号: C07C5/2518

    摘要: A method is disclosed for the double bond isomerization of alpha olefin-containing feeds, e.g., conversion of 1-butene-containing hydrocarbon streams to 2-butene-rich product streams, wherein oligomer by-products are minimized. The process uses a catalyst composition comprising a zeolite whose surface has been at least partially deactivated for acid catalyzed reactions by treatment with an aluminum chelating agent, e.g., oxalic acid, which possesses an average cross section diameter greater than that of the zeolite pores.

    摘要翻译: 公开了用于含α烯烃的进料的双键异构化的方法,例如将含1-丁烯的烃流转化为富含2-丁烯的产物流,其中低聚物副产物最小化。 该方法使用包含沸石的催化剂组合物,其表面已经通过用铝螯合剂(例如草酸)处理而至少部分失活以进行酸催化反应,所述铝螯合剂例如草酸的平均截面直径大于沸石孔的平均截面直径。