Process for multistage conversion of a charge comprising olefins with four, five or more carbon atoms, with the aim of producing propylene
    2.
    发明授权
    Process for multistage conversion of a charge comprising olefins with four, five or more carbon atoms, with the aim of producing propylene 有权
    用于多产转化含有四个,五个或更多个碳原子的烯烃的电荷的方法,目的是生产丙烯

    公开(公告)号:US07262332B2

    公开(公告)日:2007-08-28

    申请号:US10507853

    申请日:2003-03-06

    IPC分类号: C07C2/00

    CPC分类号: C07C11/06 C07C2/12

    摘要: The invention relates to a process for production of propylene in particular from a C4 and/or C5 cut from steam cracking and/or catalytic cracking, preferably comprising both butenes and pentenes, said process comprising at least one oligomerization stage, followed by a stage of catalytic cracking of the oligomers formed.Preliminary oligomerization, in particular of a wide fraction of the charge, makes it possible to optimize the yields, the conversion, and the selectivity for propylene, relative to direct cracking. It also makes it possible for cracking to be carried out in a fixed, moving, or fluidized bed, optionally with co-production of oligomers for uses other than the production of propylene.

    摘要翻译: 本发明涉及一种生产丙烯的方法,特别是从蒸汽裂化和/或催化裂化的C4和/或C5切割制备丙烯,优选包含丁烯和戊烯两者,所述方法包括至少一个低聚阶段,随后是 所形成的低聚物的催化裂化。 初步低聚,特别是大部分电荷使得有可能优化相对于直接裂化的丙烯的产率,转化率和选择性。 它还可以在固定的,移动的或流化的床中进行裂化,任选地与共生产用于生产丙烯以外的用途的低聚物共同生产。

    Method for the direct conversion of a charge containing olefins comprising a minimum of four or five carbon atoms, for producing propylene
    4.
    发明授权
    Method for the direct conversion of a charge containing olefins comprising a minimum of four or five carbon atoms, for producing propylene 有权
    用于直接转化含有至少四个或五个碳原子的烯烃的电荷,用于生产丙烯的方法

    公开(公告)号:US07579513B2

    公开(公告)日:2009-08-25

    申请号:US10572566

    申请日:2004-09-02

    IPC分类号: C07C4/02 C10G11/05

    摘要: The invention concerns a process for producing propylene, especially from a light steam cracking and/or catalytic cracking cut, preferably comprising both butenes and pentenes, said process comprising a step for moving bed catalytic cracking with a catalyst regeneration loop. The catalyst comprises at least one zeolite with a zeolitic composition with a Si/Al ratio which is preferably less than 130.The invention can produce a high conversion with a good yield of propylene at a high space velocity, meaning that the volume of catalyst can be reduced.

    摘要翻译: 本发明涉及一种生产丙烯的方法,特别是从轻质蒸汽裂化和/或催化裂化切割,优选包括丁烯和戊烯两者,所述方法包括用催化剂再生回路移动床催化裂化的步骤。 催化剂包含至少一种具有Si / Al比的沸石组合物的沸石,其优选小于130.本发明可以高空速以高的丙烯收率产生高转化率,这意味着催化剂的体积可以 减少

    Method for the treatment of a small-and/or medium-pore zeolite and use thereof in the oligomerisation of light olefins
    8.
    发明授权
    Method for the treatment of a small-and/or medium-pore zeolite and use thereof in the oligomerisation of light olefins 有权
    用于处理小孔和/或中孔沸石的方法及其在轻质烯烃低聚中的应用

    公开(公告)号:US08598397B2

    公开(公告)日:2013-12-03

    申请号:US11993996

    申请日:2006-06-22

    IPC分类号: C07C2/12 B01J29/18

    摘要: Described is a process for the treatment of at least one zeolite having a pore size of less than or equal to 7 Å comprising at least a) a step for dealumination of said zeolite, b) a cationic exchange step using at least one cation other than H+, c) a step for treatment of said zeolite obtained in step b) in the presence of at least one molecular compound containing at least one silicon atom, and d) at least one heat treatment step. The present invention also concerns the preparation of a catalyst containing the zeolite treated in accordance with the treatment process the subject-matter of the invention and the use of said catalyst in a process for the oligomerization of an olefinic charge containing hydrocarbon molecules having from 2 to 12 carbon atoms per molecule.

    摘要翻译: 描述了一种处理至少一种孔径小于或等于7的至少一种沸石的方法,该沸石至少包括a)使所述沸石脱铝的步骤,b)使用至少一种阳离子以外的阳离子交换步骤 H +,c)在至少一种含有至少一个硅原子的分子化合物的存在下,在步骤b)中得到的所述沸石的处理步骤,和d)至少一个热处理步骤。 本发明还涉及含有根据本发明主题的处理方法处理的沸石的催化剂的制备以及所述催化剂在含有烃分子的烯烃电荷低聚方法中的用途, 每个分子12个碳原子。