Highly selective N-olefin isomerization process using microcrystalline
ZSM-22
    3.
    发明授权
    Highly selective N-olefin isomerization process using microcrystalline ZSM-22 失效
    使用微晶ZSM-22的高选择性N-烯烃异构化方法

    公开(公告)号:US5237121A

    公开(公告)日:1993-08-17

    申请号:US925442

    申请日:1992-08-11

    IPC分类号: C07C5/27

    CPC分类号: C07C5/2775

    摘要: A process is disclosed for the highly selective skeletal isomerization of linear olefin-containing organic feeds to iso-olefins at high levels of feed conversion wherein linear olefins, e.g., n-butenes, are contacted with catalyst comprising ZSM-22 having a crystal size whose largest dimension is no greater than 0.5 micron. The process is carried out under isomerization conditions to produce iso-olefins of corresponding carbon number, e.g., isobutene. High overall iso-olefin yields thus can be obtained, even at relatively low temperatures.

    摘要翻译: 公开了一种用于在高水平进料转化率下将含线性烯烃的有机原料高度选择性骨架异构化成异烯烃的方法,其中线性烯烃例如正丁烯与包含ZSM-22的催化剂接触,ZSM-22的晶体尺寸 最大尺寸不大于0.5微米。 该方法在异构化条件下进行以产生相应碳数的异烯烃,例如异丁烯。 即使在相对较低的温度下也能获得高的全部异烯烃收率。

    Highly selective n-olefin isomerization process using ZSM-35
    4.
    发明授权
    Highly selective n-olefin isomerization process using ZSM-35 失效
    使用ZSM-35的高选择性正烯烃异构化方法

    公开(公告)号:US5516959A

    公开(公告)日:1996-05-14

    申请号:US357841

    申请日:1994-12-09

    摘要: A process is disclosed for the highly selective skeletal isomerization of linear olefin-containing organic feeds to iso-olefins at high levels of feed conversion wherein linear olefins, e.g., n-butenes, are contacted with catalyst comprising ZSM-35 under skeletal isomerization conditions which can include temperatures of 100 to 750.degree. C. The process uses a catalyst composition comprising ZSM-35, e.g., microcrystalline ZSM-35 having a crystal size whose largest dimension is no greater than 0.5 micron and whose ratio of its second largest dimension to said largest dimension ranges from 0.5 to 1. The process exhibits enhanced catalyst cycle life where the ZSM-35 is composited with a silica-containing matrix to provide a catalyst composite having a total pore volume greater than 0.6 cc/g or 300.sup.+ angstroms pore volume of greater than 0.1 cc/g.

    摘要翻译: 公开了一种用于在高水平进料转化率下将含线性烯烃的有机原料高度选择性骨架异构化为异烯烃的方法,其中线性烯烃例如正丁烯在骨架异构化条件下与包含ZSM-35的催化剂接触, 可以包括100至750℃的温度。该方法使用包含ZSM-35的催化剂组合物,例如具有最大尺寸不大于0.5微米的晶体尺寸的微晶ZSM-35,其第二大尺寸与所述 最大尺寸范围为0.5至1.该方法表现出增强的催化剂循环寿命,其中ZSM-35与含二氧化硅的基质复合以提供总孔体积大于0.6cc / g或300多埃孔体积的催化剂复合材料 大于0.1cc / g。

    Foam reduction during synthesis of MCM-41
    10.
    发明授权
    Foam reduction during synthesis of MCM-41 失效
    MCM-41合成期间泡沫减少

    公开(公告)号:US5538711A

    公开(公告)日:1996-07-23

    申请号:US376256

    申请日:1995-01-23

    IPC分类号: C01B37/02 C01B39/00

    CPC分类号: C01B37/02 C01B39/00

    摘要: A method for synthesizing an ultra-large pore crystalline material which can be used as a sorbent or catalyst component for the conversion of organic and inorganic compounds is improved through the addition of an antifoaming agent. The addition of antifoaming agents reduces foaming without interfering with material synthesis. Elimination of foam allows for easier charging of autoclaves and processing of synthesis mixtures.

    摘要翻译: 通过添加消泡剂,可以提高合成可用作有机和无机化合物转化的吸附剂或催化剂组分的超大孔结晶材料的方法。 消泡剂的添加可减少发泡而不干扰材料合成。 消除泡沫可以更容易地对高压釜进行充电并加工合成混合物。