Process for selectively converting ethene to isobutylene over
selectivated ZSM-35
    2.
    发明授权
    Process for selectively converting ethene to isobutylene over selectivated ZSM-35 失效
    在选择性的ZSM-35上选择性地将乙烯转化为异丁烯的方法

    公开(公告)号:US5475181A

    公开(公告)日:1995-12-12

    申请号:US228778

    申请日:1994-04-18

    IPC分类号: B01J29/65 C07C2/12 C07C2/04

    摘要: The present invention relates to a process for the oligomerization of ethene to a product rich in isobutylene comprising contacting a feedstock comprising ethene under oligomerization conditions with a catalyst composition comprising a porous crystalline silicate having the structure of ZSM-35 zeolite whose surface has been at least partially deactivated for acid catalyzed reactions by a) coking or b) chemisorption of a surface-deactivating agent, e.g., collidine, which possesses an average cross section diameter greater than that of the zeolite pores.

    摘要翻译: 本发明涉及将乙烯低聚成富含异丁烯的产物的方法,包括在低聚条件下使包含乙烯的原料与包含具有ZSM-35沸石结构的多孔结晶硅酸盐的催化剂组合物接触,所述结构硅酸盐的表面至少为 通过a)焦化或b)具有平均截面直径大于沸石孔的平均截面直径的表面去活化剂(例如可力丁)的化学吸附,部分失活用于酸催化反应。

    Coke-selectivated porous acidic crystalline catalyst, its preparation,
and use in olefin oligomerization
    3.
    发明授权
    Coke-selectivated porous acidic crystalline catalyst, its preparation, and use in olefin oligomerization 失效
    焦炭选择性多孔酸性结晶催化剂,其制备和用于烯烃低聚

    公开(公告)号:US5234875A

    公开(公告)日:1993-08-10

    申请号:US805137

    申请日:1991-12-11

    IPC分类号: B01J29/70 B01J37/10

    CPC分类号: B01J29/70 B01J37/10

    摘要: A surface-inactivated catalyst composition comprising acidic porous crystalline material, e.g., ZSM-23, having active internal Bronsted acid sites and containing coke-inactivated external acid sites is prepared by contacting the catalyst under high pressure coking conditions, e.g. 800 psig. The catalyst may be used for organic compound conversion, e.g., oligomerization of lower olefins to produce distillate boiling range materials having reduced methyl branching and increased cetane number.

    摘要翻译: 通过使催化剂在高压焦化条件下接触来制备表面活化的催化剂组合物,该催化剂组合物包含酸性多孔结晶材料,例如具有活性内部布朗斯台德酸性位点并含有焦炭失活的外部酸性位点的ZSM-23。 800 psig 该催化剂可以用于有机化合物转化,例如低级烯烃的低聚,以产生具有降低的甲基支链和增加的十六烷值的馏出物沸点范围的材料。

    Selectivated ZSM-035 catalyst and process for selectively converting
ethene to linear butenes therewith
    6.
    发明授权
    Selectivated ZSM-035 catalyst and process for selectively converting ethene to linear butenes therewith 失效
    选择性的ZSM-035催化剂和用于选择性地将乙烯转化为线性丁烯的方法

    公开(公告)号:US5449849A

    公开(公告)日:1995-09-12

    申请号:US228770

    申请日:1994-04-18

    摘要: The present invention relates to a catalyst and its use in a process for the conversion of ethene to a product rich in linear butenes, especially 2-butene, comprising contacting a feedstock comprising ethene under dimerization conditions with a catalyst composition comprising a porous crystalline silicate having the structure of ZSM-35 which has been treated by a) fluoriding, e.g., with NH.sub.4 F, and then b) at least partially surface deactivated for acid catalyzed reactions by chemisorption of a surface-deactivating agent which possesses an average cross section diameter greater than that of the zeolite pores, e.g., collidine.

    摘要翻译: 本发明涉及一种催化剂及其在将乙烯转化为富含线性丁烯,特别是2-丁烯的产物的方法中的用途,其包括在二聚条件下将包含乙烯的原料与包含多孔结晶硅酸盐的催化剂组合物接触, 已经通过a)氟化(例如用NH 4 F)处理的ZSM-35的结构,然后b)通过化学吸附表面去活化剂至少部分地表面失活用于酸催化反应,其具有平均截面直径大于 沸石孔,例如可力丁。

    Resid hydrocracking using dispersed metal catalysts
    7.
    发明授权
    Resid hydrocracking using dispersed metal catalysts 失效
    使用分散金属催化剂进行残留加氢裂化

    公开(公告)号:US5362382A

    公开(公告)日:1994-11-08

    申请号:US720106

    申请日:1991-06-24

    IPC分类号: C10G65/04 C10G45/00

    CPC分类号: C10G65/04

    摘要: Heavy oils are advantageously preconditioned by heat soaking prior to hydrotreating with a dispersed metal catalyst to reduce coking in a two stage hydrotreating process. The effluent of a hydrotreating process is filtered to recover catalytically active coke which is recovered by backflushing and recycled to the feed stream. A mild solvent deasphalting step isolates metals in a reduced volume asphaltene fraction.

    摘要翻译: 在用分散的金属催化剂进行加氢处理之前通过热浸预先使重油预处理,以在两级加氢处理方法中减少焦化。 加氢处理过程的流出物被过滤以回收催化活性焦炭,其通过反吹回收并再循环到进料流中。 轻度溶剂脱沥青步骤分离出体积较小的沥青质馏分中的金属。

    Flow detector for solids
    10.
    发明授权
    Flow detector for solids 失效
    固体流量检测仪

    公开(公告)号:US4349734A

    公开(公告)日:1982-09-14

    申请号:US186107

    申请日:1980-09-11

    IPC分类号: G01P13/00 H01J39/12

    CPC分类号: G01P13/0086

    摘要: The invention concerns the flow and measurement of divided solids in small diameter tubes at high pressures. A flow channel is drilled through a metal block. A second channel is drilled so that the second channel intersects the first channel at a right angle. A beam of light, sent through an optical fiber in the second channel, travels across the first channel and is received and recorded in the distal end of the extension of the second channel. Interruptions of the light beam, due to the passage of solids along the first channel, are translated into indications of the flow of the solids.

    摘要翻译: 本发明涉及在高压下在小直径管中的分散固体的流动和测量。 通过金属块钻出流道。 钻出第二通道使得第二通道以直角与第一通道相交。 通过第二通道中的光纤发送的光束穿过第一通道,并被接收并记录在第二通道的延伸部分的远端。 由于沿着第一通道的固体通过,光束的中断被转化为固体流动的指示。