Process for the dehydrocyclization of acyclic hydrocarbons and catalyst
composition therefor
    2.
    发明授权
    Process for the dehydrocyclization of acyclic hydrocarbons and catalyst composition therefor 失效
    无环烃的脱氢环化方法及其催化剂组合物

    公开(公告)号:US4888105A

    公开(公告)日:1989-12-19

    申请号:US156067

    申请日:1988-02-16

    IPC分类号: B01J29/64 C07C5/41 C10G35/095

    摘要: The dehydrocyclization of a feed containing one or more acyclic hydrocarbons capable of undergoing ring closure to provide aromatic hydrocarbons is accomplished by contacting the feed under dehydrocyclization conditions with a zeolite L dehydrocyclization catalyst which is substantially free of zeolite T and which contains at least one Group VIII metal component, thereby converting at least a portion of the acyclic hydrocarbon content of the feed to aromatic compound(s). Use of the foregoing zeolite L dehydrocyclization catalyst has been found to result in less non-selective hydrocracking of naphtha range materials to gaseous hydrocarbons and greater conversion of low octane paraffins to high octane aromatics than that achieved with a zeolite L synthesized by a prior procedure which results in the co-production of zeolite T contaminant.

    摘要翻译: 含有一个或多个能够进行闭环以提供芳族烃的无环烃的进料的脱氢环化通过使脱氢环化条件下的进料与基本上不含沸石T的沸石L脱氢环化催化剂接触并且其含有至少一个第VIII族 金属组分,从而将进料的至少一部分无环烃含量转化为芳族化合物。 已经发现使用上述沸石L脱氢环化催化剂导致石脑油范围材料对气态烃的非选择性加氢裂化较少,并且与通过先前方法合成的沸石L所达到的相比,低辛烷值链烷烃的转化率高于高辛烷值。 导致沸石T污染物的共同生产。

    Process for dispersing or redispersing a Group VIII noble metal species
on a porous inorganic support
    3.
    发明授权
    Process for dispersing or redispersing a Group VIII noble metal species on a porous inorganic support 失效
    将VIII族贵金属物质分散或再分散在多孔无机载体上的方法

    公开(公告)号:US4952543A

    公开(公告)日:1990-08-28

    申请号:US282363

    申请日:1988-12-09

    摘要: A process for dispersing or dispersing relatively large crystallites of an agglomerated Group VIII noble metal species present on a porous inorganic support is disclosed. The process includes contacting the agglomerated noble metal species, e.g., palladium or platinum, present on the support, e.g., alumina, silica or a zeolite such as ZSM-5 from which at least a major portion of any extraneous matter such as coke or other residue has previously been removed, with nitric oxide (NO) alone or in admixture with a source of halogen such as Cl.sub.2 and thereafter removing sorbed nitrogen oxide(s) and halogen, if present. The thus treated metal-loaded catalyst demonstrates substantially increased benzene hydrogenation activity (BHA) compared to the same catalyst prior to treatment indicating significant dispersion/redispersion of the metal crystallites as smaller crystallites.

    摘要翻译: 公开了一种用于分散或分散存在于多孔无机载体上的聚集的第VIII族贵金属物质的较大微晶的方法。 该方法包括使存在于载体上的附聚的贵金属物质例如钯或铂接触,例如氧化铝,二氧化硅或诸如ZSM-5的沸石,其中至少大部分任何外来物质如焦炭或其它物质 先前已经除去了一氧化氮(NO)或与卤素源如Cl 2混合,然后除去吸附的氮氧化物和卤素(如果存在)。 如此处理的金属负载的催化剂在处理之前与相同的催化剂相比显示出显着增加的苯加氢活性(BHA),表明作为较小晶粒的金属微晶的显着分散/再分散。

    Startup procedure for reforming catalysts
    6.
    发明授权
    Startup procedure for reforming catalysts 失效
    重整催化剂的启动程序

    公开(公告)号:US4261810A

    公开(公告)日:1981-04-14

    申请号:US130802

    申请日:1980-03-17

    IPC分类号: C10G35/22

    摘要: Process for reforming a hydrocarbon charge under reforming conditions in a reforming zone containing a sulfur-sensitive metal containing reforming catalyst wherein over-cracking of the charge stock and excessive temperature rise in the reforming zone is suppressed by pre-conditioning the catalyst, prior to contact with the charge, with a reformate of specified octane number and aromatics content.

    摘要翻译: 在包含含硫敏感金属的重整催化剂的重整区中,在重整条件下重整烃装料的方法,其中通过在接触之前预处理催化剂来抑制电荷原料的过度裂化和重整区的过度温度升高 负责重组指定的辛烷值和芳烃含量。

    Separately supported polymetallic reforming catalyst
    7.
    发明授权
    Separately supported polymetallic reforming catalyst 失效
    单独支撑的多金属重整催化剂

    公开(公告)号:US4493764A

    公开(公告)日:1985-01-15

    申请号:US618791

    申请日:1984-06-08

    CPC分类号: C10G35/09 B01J23/6565

    摘要: There is provided, in accordance with the present invention, a catalyst composition made up of a mixture of two components, one component comprising a minor proportion of platinum and rhenium on a support and the second component comprising a minor proportion of iridium and rhenium on a separate support. A process for reforming a charge stock, such as naphtha, utilizing such catalyst is also provided.

    摘要翻译: 根据本发明,提供了由两种组分的混合物组成的催化剂组合物,一种在载体上包含少量铂和铼的组分,第二组分包含少量的铱和铼 单独支持。 还提供了利用这种催化剂重整电荷原料如石脑油的方法。

    Catalyst regeneration procedure
    10.
    发明授权
    Catalyst regeneration procedure 失效
    催化剂再生程序

    公开(公告)号:US4359400A

    公开(公告)日:1982-11-16

    申请号:US228855

    申请日:1981-01-27

    CPC分类号: C10G35/09 B01J23/96

    摘要: Supported multi-metallic platinum-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by (1) contacting the catalyst with oxygen to burn at least a portion of the carbonaceous residues from the catalyst, (2) contacting the carbonaceous residue depleted catalyst with hydrogen at an elevated temperature to convert a substantial portion of the non-platinum component present in the catalyst to its metallic form, (3) contacting the reduced catalyst with dry hydrogen chloride in the absence of oxygen, (4) treatment of the hydrogen chloride treated catalyst with chlorine, and (5) reduction of the chlorine treated catalyst with a reducing agent, such as hydrogen.

    摘要翻译: 由于在与烃接触期间由于其上的碳质残渣沉积而至少部分失活的支持的多金属含铂烃转化催化剂通过(1)使催化剂与氧接触以将至少一部分碳质残渣从 催化剂,(2)在高温下将含碳残余物贫化催化剂与氢气接触以将存在于催化剂中的大部分非铂组分转化为其金属形式,(3)使还原的催化剂与干氯化氢接触 无氧,(4)用氯处理氯化氢处理的催化剂,和(5)用还原剂如氢气还原氯处理的催化剂。