Additive for vanadium capture in catalytic cracking
    21.
    发明授权
    Additive for vanadium capture in catalytic cracking 失效
    催化裂解中钒捕获的添加剂

    公开(公告)号:US4889615A

    公开(公告)日:1989-12-26

    申请号:US280451

    申请日:1988-12-06

    IPC分类号: C10G11/02

    CPC分类号: C10G11/02 Y10S502/521

    摘要: A catalytic cracking process especially useful for the catalytic cracking of high metals content feeds including resids in which the feed is cracked in the presence of a catalyst additive comprising a dehydrated magnesium-aluminum hydrotalcite which acts as a trap for vanadium as well as an agent for reducing the content of sulfur oxides in the regenerator flue gas. The additive is used in the form of a separate additive from the cracking catalyst particles in order to keep the vanadium away from the cracking catalyst and so preserve the activity of the catalyst.

    摘要翻译: 一种特别适用于高金属含量进料的催化裂化的催化裂化方法,包括在催化剂添加剂存在下进料裂化的残渣,该催化剂添加剂包含作为钒陷阱的脱水镁 - 铝水滑石,以及用于 降低再生器烟道气中硫氧化物的含量。 添加剂以与裂化催化剂颗粒分开的添加剂的形式使用,以使钒远离裂化催化剂,因此保持催化剂的活性。

    Synthesis crystalline molecular sieves
    27.
    发明申请
    Synthesis crystalline molecular sieves 审中-公开
    合成结晶分子筛

    公开(公告)号:US20080253959A1

    公开(公告)日:2008-10-16

    申请号:US11731870

    申请日:2007-03-30

    IPC分类号: C01B33/20 C01B39/00

    CPC分类号: C01B37/00 C01B39/00

    摘要: In a process for synthesizing a crystalline molecular sieve, an aqueous synthesis mixture is produced capable of forming the crystalline molecular sieve. Crystallization of the synthesis mixture is induced so as to form crystals of said molecular sieve in the synthesis mixture and, when crystallization is complete, the molecular sieve crystals are allowed or caused to separate from the remainder of the synthesis mixture to produce a solid phase comprising said molecular sieve crystals and a supernatant liquid phase. The supernatant liquid phase is then decanted from the solid phase to recover the molecular sieve crystals and the crystals are dried without initially being subjected to washing or filtration.

    摘要翻译: 在合成结晶分子筛的方法中,制备能够形成结晶分子筛的水性合成混合物。 诱导合成混合物的结晶,以便在合成混合物中形成所述分子筛的晶体,并且当结晶完成时,使分子筛结晶与合成混合物的其余部分分离以产生包含 所述分子筛晶体和上清液相。 然后从固相中倾析出上清液相,回收分子筛晶体,并将晶体干燥,最初不进行洗涤或过滤。

    Catalytic oligomerization process using modified mesoporous crystalline
material
    28.
    发明授权
    Catalytic oligomerization process using modified mesoporous crystalline material 失效
    使用改性介孔结晶材料的催化低聚方法

    公开(公告)号:US5260501A

    公开(公告)日:1993-11-09

    申请号:US920944

    申请日:1992-07-28

    IPC分类号: C07C2/10 C07C2/12

    摘要: A novel oligomerization catalyst and process for upgrading olefins employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units; and the porous crystalline material is impregnated with at least one oligomerization promoting metal, such as Groups VIIIA metals, preferably nickel.The new process is provided for catalytic oligomerization of olefin feedstock which comprises contacting the feedstock under catalytic conversion conditions with the metal-modified acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The oligomerization reaction is very selective, especially when conducted at temperature of 60.degree. to 120.degree. C. Low severity reaction permits excellent conversion of lower olefins at pressure of about 100-13,000 kPa range and moderate space velocity.

    摘要翻译: 一种新型低聚催化剂和使用新型超大孔结晶材料合成催化剂改质烯烃的方法。 新的结晶材料表现出非常大的吸附能力,其吸附能力在50托和25℃时苯吸附能力大于约15克苯/ 100克,可以用大于约100的d100值进行指数的六方电子衍射图 18埃单位和具有至少约13埃单位的最大垂直横截面的均匀尺寸孔的六边形排列; 并且多孔结晶材料用至少一种低聚促进金属浸渍,例如第VIIIA族金属,优选镍。 提供了用于烯烃原料的催化低聚的新方法,其包括在催化转化条件下使原料与具有MCM-41结构的金属改性的酸式金属硅酸盐固体催化剂接触,六方蜂窝晶格结构基本上由均匀的孔组成, 约20至100埃。 低聚反应是非常有选择性的,特别是在60℃至120℃的温度下进行。低强度反应允许在约100-13000kPa范围和适度的空间速度的压力下对低级烯烃进行极好的转化。

    Highly selective N-olefin isomerization process using microcrystalline
ZSM-22
    29.
    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。

    Method for manufacturing synthetic mesoporous crystalline material
    30.
    发明授权
    Method for manufacturing synthetic mesoporous crystalline material 失效
    制造合成介孔结晶材料的方法

    公开(公告)号:US5156828A

    公开(公告)日:1992-10-20

    申请号:US732516

    申请日:1991-07-18

    摘要: This invention relates to a method for synthesizing an ultra-large pore crystalline material and the use of such crystalline material as a sorbent and in catalytic conversion of organic and inorganic compounds. The synthesis method includes hydrothermally treating the as-synthesized crystalline material in the presence or absence of a binder. In a preferred embodiment, the crystalline material contains organic directing agent and is composited in an alumina binder. The crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units.

    摘要翻译: 本发明涉及一种用于合成超大孔结晶材料的方法以及这种结晶材料作为吸附剂的用途以及催化转化有机和无机化合物。 合成方法包括在存在或不存在粘合剂的情况下水解处理合成的结晶材料。 在优选的实施方案中,结晶材料含有有机导向剂并且在氧化铝粘合剂中复合。 结晶物质表现出非常大的吸附能力,其吸附能力在50托和25℃时苯吸附能力大于约15克/ 100克,六方形电子衍射图可用d100值大于约18 埃单位和具有至少约13埃单位的最大垂直截面的均匀尺寸孔的六边形排列。