Production of high cetane diesel fuel by employing hydrocracking and
catalytic dewaxing techniques
    81.
    发明授权
    Production of high cetane diesel fuel by employing hydrocracking and catalytic dewaxing techniques 失效
    采用加氢裂化和催化脱蜡技术生产高十六烷值的柴油

    公开(公告)号:US5611912A

    公开(公告)日:1997-03-18

    申请号:US583700

    申请日:1996-01-05

    CPC分类号: C10G69/04 C10G65/12

    摘要: A process for the production of diesel fuel with a high cetane number at a low cloud point, which involves hydrocracking highly aromatic fractions obtained from catalytic cracking operations. The fraction of hydrocracker effluent which boils between about 400.degree. F. (205.degree. C.) and 1000.degree. F. (538.degree. C.) is subsequently catalytically dewaxed in order to obtain a cloud point of no more than 41.degree. F. (5.degree. C.). The hydrocracker effluent fraction is preferably recycled to the hydrocracking step prior to dewaxing.

    摘要翻译: 在低浊点下生产具有高十六烷值的柴油燃料的方法,其涉及由催化裂化操作获得的高芳族馏分的加氢裂化。 随后在约400°F(205℃)和1000°F(538℃)之间沸腾的加氢裂化器流出物的馏分进行催化脱蜡,以获得不超过41°F的浊点。 5℃)。 加氢裂化器流出物馏分优选在脱蜡之前再循环至加氢裂化步骤。

    Selectivated ZSM-035 catalyst and process for selectively converting
ethene to linear butenes therewith
    84.
    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。

    Combined paraffin isomerization/ring opening process
    85.
    发明授权
    Combined paraffin isomerization/ring opening process 失效
    联合石蜡异构化/开环过程

    公开(公告)号:US5382731A

    公开(公告)日:1995-01-17

    申请号:US95885

    申请日:1993-07-22

    IPC分类号: C07C5/13 C07C5/22 C07C1/00

    摘要: There is provided a process for ring opening of aromatics or cycloaliphatics, as well as isomerization of aliphatics. The feedstream to this process comprises hydrocarbons having 6 carbon atoms. The process involves the use of a recycle stream containing a source of chlorine, such as carbon tetrachloride, and this process involves the use of at least two reactors connected in series. The first reactor comprises a ring opening catalyst and is operated under conditions which particularly promote ring opening. The catalyst in this first reactor may comprise zirconia modified with tungstate and platinum. A second, downstream reactor is operated under conditions to promote isomerization of aliphatics. The catalyst in the second reactor may comprise alumina, platinum and a chloride component. The catalysts in both the first and second reactors are chlorine resistant.

    摘要翻译: 提供了芳族化合物或环烯烃的开环方法以及脂肪族异构化方法。 该方法的进料流包含具有6个碳原子的烃。 该方法包括使用含有氯源的再循环流,例如四氯化碳,并且该方法涉及使用串联连接的至少两个反应器。 第一反应器包括开环催化剂,并在特别促进开环的条件下操作。 该第一反应器中的催化剂可以包括用钨酸盐和铂改性的氧化锆。 第二个下游反应器在促进脂肪族异构化的条件下运行。 第二反应器中的催化剂可以包括氧化铝,铂和氯化物组分。 第一和第二反应器中的催化剂都是耐氯的。

    Processes for converting methane to higher molecular weight hydrocarbons
via sulfur-containing intermediates
    89.
    发明授权
    Processes for converting methane to higher molecular weight hydrocarbons via sulfur-containing intermediates 失效
    通过含硫中间体将甲烷转化为高分子量烃的方法

    公开(公告)号:US4864073A

    公开(公告)日:1989-09-05

    申请号:US189878

    申请日:1988-05-03

    IPC分类号: C07C1/32

    摘要: There is provided a process for converting methane to higher molecular weight hydrocarbons. In a first step, methane is contacted with carbonyl sulfide in the presence of UV light under conditions sufficient to produce CH.sub.3 SH. This CH.sub.3 SH then contacted with a sufficient catalyst, such as a zeolite, especially ZSM-5, under conditions sufficient to produce hydrocarbons having two or more carbon atoms.

    摘要翻译: 提供了将甲烷转化为较高分子量烃的方法。 在第一步中,在足以产生CH3SH的条件下,在UV光的存在下,使甲烷与硫化羰接触。 然后在足以产生具有两个或更多个碳原子的烃的条件下,该CH3SH与足够的催化剂如沸石,特别是ZSM-5接触。