Dehydrogenation processes, equipment and catalyst loads therefor
    11.
    发明授权
    Dehydrogenation processes, equipment and catalyst loads therefor 失效
    脱氢方法,设备和催化剂负载

    公开(公告)号:US5406014A

    公开(公告)日:1995-04-11

    申请号:US177124

    申请日:1994-01-04

    摘要: Disclosed are methods for dehydrogenation of alkanes into alkenes in reactor systems of improved resistance to carburization under dehydrogenation conditions. The reactor walls are provided with a carburization and abrasion resistant protective layer by applying a metal plating, cladding or other coatings, such as painting, of a metal, such as Sb, As, Bi, Cu, Cr, Ga, Ge, In, Pb, Se, Te, Sn, particularly tin as a stannide layer, for forming a carburation resistant protective layer to a thickness of about 0.5 to 15 mils, effective to isolate the steel portion from hydrocarbons during the dehydrogenation process while avoiding any substantial liquid metal embrittlement. The protective layer is formed anchored to the steel portion through an intermediate carbide-rich bonding layer.

    摘要翻译: 公开的是在脱氢条件下将烷烃脱氢成反应器系统中耐烯烃的方法。 反应器壁通过涂覆诸如Sb,As,Bi,Cu,Cr,Ga,Ge,In等金属的金属电镀,包覆或其它涂层,例如涂覆,而设置有渗碳和耐磨保护层, Pb,Se,Te,Sn,特别是作为锡层的锡,用于形成厚度为约0.5至15密耳的耐渗碳保护层,有效地在脱氢过程中将钢部分与烃隔离,同时避免任何实质的液态金属 脆化。 保护层通过中间碳化物丰富的粘结层形成为固定在钢部分上。

    Treating and desulfiding sulfided steels in low-sulfur reforming
processes
    12.
    发明授权
    Treating and desulfiding sulfided steels in low-sulfur reforming processes 失效
    在低硫重整过程中处理和脱硫硫化钢

    公开(公告)号:US5405525A

    公开(公告)日:1995-04-11

    申请号:US285

    申请日:1993-01-04

    CPC分类号: C10G35/095 Y10S138/06

    摘要: A method for reforming hydrocarbons comprising coating portions of a reactor system with a material more resistant to carburization, reacting the material with metal sulfides existing in the portions of the reactor system prior to coating, fixating and removing at least a portion of the sulfur in the metal sulfides, and reforming hydrocarbons in the reactor system under conditions of low sulfur.

    摘要翻译: 一种用于重整烃的方法,包括用具有更耐渗碳性的材料涂覆反应器系统的部分,在涂覆之前使材料与存在于反应器系统的部分中的金属硫化物反应,固定和除去至少一部分硫在 金属硫化物和在低硫条件下的反应器体系中的重整烃。

    Staged catalyst processing to produce optimum aromatic barrel per
calendar day aromatic production
    13.
    发明授权
    Staged catalyst processing to produce optimum aromatic barrel per calendar day aromatic production 失效
    分阶段催化剂加工生产最佳芳香桶每个日历日芳香生产

    公开(公告)号:US5376259A

    公开(公告)日:1994-12-27

    申请号:US733342

    申请日:1991-07-22

    CPC分类号: C10G35/24 C10G59/02

    摘要: A naphtha feed is contacted in a penultimate aromatic forming stage under catalytic aromatic forming conditions with a first catalyst. The effluent from the penultimate stage is contacted in a final aromatic forming stage under catalytic aromatic forming conditions and at substantially the same pressure as is maintained in the penultimate stage with a second catalyst. The pressure is selected to provide optimal aromatic production per calendar day from the final stage.

    摘要翻译: 在催化芳构成形条件下,使用第一催化剂,在倒数第二芳族化合物阶段使石脑油进料接触。 倒数第二阶段的流出物在最终的芳香族形成阶段中在催化芳香族形成条件下与基本上与第二催化剂在倒数第二阶段保持的相同的压力下接触。 选择压力以在最后阶段提供每个日历日的最佳芳香生产。

    Hydrocarbon hydroconversion with a catalyst having interconnected
macropores
    14.
    发明授权
    Hydrocarbon hydroconversion with a catalyst having interconnected macropores 失效
    用具有相互连接的大孔的催化剂进行烃加氢转化

    公开(公告)号:US4115248A

    公开(公告)日:1978-09-19

    申请号:US841856

    申请日:1977-10-13

    摘要: A catalyst composition, a method for its preparation and a hydrotreating process using same. The catalyst comprises a rigidly interconnected pack of irregularly shaped particles having an average diameter below 0.15 mm. Among the particles and throughout the pack are access channels comprising interconnected macropores having diameters in the 0.1 to 15 micron range which contribute at least 5 percent of the pore volume. The particles comprise materials selected from the group consisting of at least one refractory oxide component and one hydrogenation component. For each 100 parts of the oxide component the composition contains, in parts by weight, an amount of the hydrogenating component, calculated as metal, in the range from 0.1 to 50 parts.

    摘要翻译: 催化剂组合物,其制备方法和使用其的加氢处理方法。 催化剂包括刚性互连的不规则形状的颗粒,其平均直径低于0.15mm。 在颗粒之间并且整个包装中的入口通道包括具有0.1至15微米范围内的直径的相互连接的大孔,其占孔体积的至少5%。 颗粒包括选自至少一种难熔氧化物组分和一种氢化组分的材料。 对于每100份氧化物组分,组合物以重量份计包含以0.1至50份的范围计的金属量的氢化组分。

    Catalyzed combustion in cracking catalyst
    15.
    发明授权
    Catalyzed combustion in cracking catalyst 失效
    催化裂化催化剂催化燃烧

    公开(公告)号:US4382023A

    公开(公告)日:1983-05-03

    申请号:US231532

    申请日:1981-02-04

    摘要: The volume ratio of CO.sub.2 /CO in cracking catalyst regenerator flue gas is increased without adverse effect on cracking conversion and selectivity by employing a chromium oxidation catalyst at a high concentration in a small proportion of particles circulating in a cracking system.

    摘要翻译: 通过在裂解体系中循环的少量颗粒中使用高浓度的铬氧化催化剂,增加了裂化催化剂再生器烟气中CO 2 / CO的体积比,而不会对裂化转化率和选择性产生不利影响。

    Method for controlling multistage reforming process to give high octane
barrel per calendar day throughput
    16.
    发明授权
    Method for controlling multistage reforming process to give high octane barrel per calendar day throughput 失效
    用于控制多级重整过程的方法,以在每个日历日期之前提供高OCTONBARREL

    公开(公告)号:US5171691A

    公开(公告)日:1992-12-15

    申请号:US488155

    申请日:1990-03-02

    IPC分类号: C10G35/24

    CPC分类号: C10G35/24 Y10T436/12

    摘要: A method is provided of selecting operating parameters for a reforming process having at least penultimate and final reforming stages, each containing a respective catalyst, for optimum OB/CD production of product reformate having a selected RON and/or over a particular run length. The catalyst lives are determined at constant LHSV for the penultimate and final stage catalysts for a give feed octane to each stage as a function of the change in RON from that of the feed to that of the C.sub.5 + effluent from the respective stage. The penultimate stage C.sub.5 + effluent RON is selected to be such that the lives of the catalysts in each stage are substantially equal. Preferably the yield of C.sub.5 + effluent from each stage and the life of the catalyst used in each stage is determined as a function of the reforming pressure of that stage. The operating pressures of the stages are then selected to be within about 30% of that which gives the highest OB/CD.

    摘要翻译: 提供了一种选择具有至少倒数第二和最后重整阶段的重整工艺的操作参数的方法,每个重整步骤包含相应的催化剂,以获得具有选定RON和/或特定流程长度的产物重整产物的最佳OB / CD生产。 催化剂寿命以恒定的LHSV确定,用于从每个阶段给出进料辛烷至每个阶段的反应物和最终阶段催化剂,作为从进料到从相应阶段的C5 +流出物的RON变化的函数的函数。 选择倒数第二级C5 +流出物RON使得每个阶段的催化剂的寿命基本相等。 优选地,每个阶段的C5 +流出物的产率和每个阶段中使用的催化剂的寿命作为该阶段的重整压力的函数来确定。 然后将级的操作压力选择为提供最高OB / CD的操作压力的约30%。

    Dehydrocyclization or catalytic reforming sulfur tolerant zeolite
catalyst
    17.
    发明授权
    Dehydrocyclization or catalytic reforming sulfur tolerant zeolite catalyst 失效
    脱氢或催化重整硫醇耐沸虫催化剂

    公开(公告)号:US5169813A

    公开(公告)日:1992-12-08

    申请号:US488332

    申请日:1990-03-02

    摘要: A process is provided for catalytic reforming or dehydrocyclization of hydrocarbons using a catalyst comprising a noble metal, and an intermediate pore size crystalline silicate having a high silica to alumina ratio and a relatively low alkali content. Preferably, the crystalline silicate is in the form of small crystallite size, such as less than 5 microns. The reforming or dehydrocyclization process is sulfur tolerant so that the reforming can be carried out in the presence of sulfur or with periodic exposure to sulfur.

    摘要翻译: 提供了使用包含贵金属的催化剂和具有高二氧化硅与氧化铝比和较低碱含量的中等孔径的结晶硅酸盐进行烃的催化重整或脱氢环化的方法。 优选地,结晶硅酸盐为微晶尺寸小的形式,例如小于5微米。 重整或脱氢环化方法是耐硫的,因此重整可以在硫的存在下或者周期性地暴露于硫下进行。