Process for converting dienes and oxygenates to para-xylene and light olefins
    12.
    发明授权
    Process for converting dienes and oxygenates to para-xylene and light olefins 失效
    将二烯和含氧化合物转化为对二甲苯和轻质烯烃的方法

    公开(公告)号:US06187982B1

    公开(公告)日:2001-02-13

    申请号:US09419228

    申请日:1999-10-15

    IPC分类号: C07C200

    摘要: A process useful in steam cracking is disclosed for selectively converting a feed comprising C4+ dienes and oxygenate to a product comprising increased C2+ monoolefins and para-xylene levels by contacting said feed under diolefin conversion conditions with a catalyst comprising a porous crystalline material having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1-100 sec−1 when measured at a temperature of 120° C. and a 2,2-dimethylbutane pressure of 60 torr (8 kPa), a temperature of 430° C. and 0.5 WHSV.

    摘要翻译: 公开了一种可用于蒸汽裂化的方法,用于通过使二烯烃转化条件下的所述进料与包含具有扩散参数的多孔结晶材料的催化剂接触来选择性地将包含C4 +二烯和含氧化合物的进料转化成包含增加的C2 +单烯烃和对二甲苯含量的产物 对于在120℃的温度和60托(8kPa)的2,2-二甲基丁烷压力下测量的约0.1-100秒-1的2,2-二甲基丁烷,温度为430℃和0.5WHSV 。

    Production of meta-diisopropylbenzene
    16.
    发明授权
    Production of meta-diisopropylbenzene 有权
    间二异丙基苯的生产

    公开(公告)号:US06753453B2

    公开(公告)日:2004-06-22

    申请号:US10299558

    申请日:2002-11-19

    IPC分类号: C07C412

    CPC分类号: C07C6/123 C07C15/02

    摘要: A process for the selective production of meta-diisopropylbenzene is disclosed, wherein the process comprises the steps of contacting cumene under disproportionation conditions and in the absence of added benzene with a catalyst comprising a porous crystalline inorganic oxide material having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom to produce a disproportionation effluent containing benzene and mixture of diisopropylbenzene isomers, and then recovering from said disproportion effluent a meta-diisopropylbenzene boiling range fraction in which the ratio of meta-diisopropylbenzene to ortho-diisopropylbenzene is in excess of 50 and the total amount of meta-diisopropylbenzene co-boilers excluding ortho-diisopropylbenzene is less than 1 wt % of said fraction.

    摘要翻译: 公开了选择性制备间二异丙基苯的方法,其中所述方法包括以下步骤:在歧化条件下和不加入苯的情况下将异丙基苯与包含具有X射线衍射图案的多孔结晶无机氧化物材料的催化剂接触,所述多孔结晶无机氧化物材料包括 在12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃处的d间距最大值,以产生含有苯和二异丙基苯异构体的混合物的歧化流出物,然后从所述不成比例流出物中回收间二异丙基苯沸程馏分,其中 间二异丙基苯与邻二异丙基苯的比例超过50,除邻二异丙基苯以外的间二异丙基苯共沸锅的总量小于所述馏分的1重量%。

    Process for converting methanol to olefins
    17.
    发明授权
    Process for converting methanol to olefins 失效
    将甲醇转化为烯烃的方法

    公开(公告)号:US06613951B1

    公开(公告)日:2003-09-02

    申请号:US09401078

    申请日:1999-09-23

    IPC分类号: C07C120

    摘要: There is provided a process for converting methanol or dimethyl ether to a product containing C2 to C4 olefins, which comprises the step of contacting a feed containing methanol or dimethyl ether with a catalyst which comprises a zeolite having 10-ring intersecting channels, such as ZSM-5, and which has a Diffusion Parameter for 2,2-dimethylbutane of less than 100 sec−1 when measured at a temperature of 120° C. and a 2,2-dimethylbutane pressure of 60 torr (8 kPa). The contacting step is conducted at a temperature of 370 to 480° C., a methanol partial pressure of 30 to 150 psia and a methanol conversion per pass of less than 95%.

    摘要翻译: 提供了一种将甲醇或二甲醚转化为含有C2至C4烯烃的产物的方法,其包括使含有甲醇或二甲醚的进料与包含具有10环相交通道的沸石如ZSM的催化剂接触的步骤 -5,当在120℃的温度和60托(8kPa)的2,2-二甲基丁烷压力下测量时,其具有小于100秒-1的2,2-二甲基丁烷的扩散参数。 接触步骤在370至480℃的温度,30至150psia的甲醇分压和小于95%的每次通过的甲醇转化率下进行。

    Production of diisopropylbenzene by disproportion of cumene in the presence of a TEA-mordenite catalyst
    20.
    发明授权
    Production of diisopropylbenzene by disproportion of cumene in the presence of a TEA-mordenite catalyst 有权
    在TEA丝光沸石催化剂存在下,通过异丙苯的不成比例生产二异丙基苯

    公开(公告)号:US07432405B2

    公开(公告)日:2008-10-07

    申请号:US11179320

    申请日:2005-07-12

    IPC分类号: C07C12/15

    摘要: A process for the disproportionation of cumene is disclosed which comprises the step of contacting a feed containing cumene, under disproportionation conditions, with a catalyst comprising a molecular sieve, preferably TEA-mordenite. The contacting step disproportionates at least part of the cumene in the feed to provide a disproportionation effluent containing benzene and a mixture of diisopropylbenzene isomers. The effluent is then recovered and contains, prior to any separation step, less 1% of ortho-diisopropylbenzene by weight of the total diisopropylbenzene content of said effluent, less than 1 wt % of n-propylbenzene, less than 5 wt % of triisopropylbenzenes and less than 5 wt % of disproportionation products other than benzene and diisopropylbenzenes.

    摘要翻译: 公开了异丙苯歧化的方法,其包括在歧化条件下使含有枯烯的进料与包含分子筛,优选TEA丝光沸石的催化剂接触的步骤。 接触步骤歧化进料中的异丙基苯的至少一部分,以提供含有苯和二异丙基苯异构体的混合物的歧化流出物。 然后回收流出物,并且在任何分离步骤之前,包含按所述流出物的总二异丙苯含量的重量计小于1重量%的邻二异丙基苯,小于1重量%的正丙基苯,小于5重量%的三异丙基苯和 除苯和二异丙基苯以外的歧化产物少于5重量%。