Selective reforming process for the production of aromatics
    63.
    发明授权
    Selective reforming process for the production of aromatics 失效
    选择性重整方法生产芳烃

    公开(公告)号:US06358400B1

    公开(公告)日:2002-03-19

    申请号:US09318089

    申请日:1999-05-25

    IPC分类号: C10G3509

    CPC分类号: C10G35/065

    摘要: A reforming process, selective for the dehydrocyclization of paraffins to aromatics, is effected using a large-pore molecular-sieve catalyst containing a uniformly distributed platinum-group metal component, and a tin component incorporated into the large-pore molecular sieve by secondary synthesis. The use of this catalyst results in greater selectivity of conversion of paraffins to aromatics and in improved catalyst stability.

    摘要翻译: 通过使用含有均匀分布的铂族金属组分的大孔分子筛催化剂和通过二次合成掺入大孔分子筛中的锡组分,可以选择性地将烷烃脱氢环化到芳族化合物的重整方法。 使用该催化剂导致链烷烃转化为芳族化合物和提高催化剂稳定性的更大选择性。

    Caustic free liquid/liquid process for sweetening a sour hydrocarbon
fraction
    65.
    发明授权
    Caustic free liquid/liquid process for sweetening a sour hydrocarbon fraction 失效
    无酸液体/液体方法,用于使酸性烃馏分变甜

    公开(公告)号:US5093296A

    公开(公告)日:1992-03-03

    申请号:US572824

    申请日:1990-08-27

    IPC分类号: B01J31/02 B01J31/12 B01J31/18

    摘要: This invention relates to a liquid-liquid process for treating a sour hydrocarbon fraction. The process comprises contacting the hydrocarbon fraction in the presence of an oxidizing agent with an aqueous solution containing ammonium hydroxide, a metal chelate and an onium compound selected from the group consisting of quaternary ammonium, phosphonium, arsonium, stibonium, oxonium and sulfonium compounds. A preferred onium compound is a quaternary ammonium compound with an especially preferred compound being a quaternary ammonium halide. This invention also relates to a catalyst comprising an aqueous solution containing ammonium hydroxide, a metal chelate and an onium compound, for oxidizing mercaptans contained in a sour hydrocarbon fraction. The aqueous solution which is the catalyst can also be used to improve the activity of a fixed bed mercaptan oxidation catalyst.

    摘要翻译: 本发明涉及一种用于处理酸性烃馏分的液 - 液方法。 该方法包括在氧化剂存在下将烃馏分与含有氢氧化铵的水溶液,金属螯合物和选自季铵,鏻,砷,锑,氧鎓和锍化合物的鎓化合物接触。 优选的鎓化合物是季铵化合物,特别优选的化合物是季铵卤化物。 本发明还涉及包含含有氢氧化铵的水溶液,金属螯合物和鎓化合物的催化剂,用于氧化含在酸性烃馏分中的硫醇。 作为催化剂的水溶液也可用于提高固定床硫醇氧化催化剂的活性。

    Process for improving the color and color stability of hydrocarbon
fraction
    67.
    发明授权
    Process for improving the color and color stability of hydrocarbon fraction 失效
    提高烃馏分的颜色和颜色稳定性的方法

    公开(公告)号:US4992157A

    公开(公告)日:1991-02-12

    申请号:US441869

    申请日:1989-11-27

    IPC分类号: C10G45/22

    CPC分类号: C10G45/22

    摘要: This invention relates to a process for improving the color and color stability of a hydrocarbon fraction. The process involves contacting the hydrocarbon fraction with a selective hydrogenation catalyst in the presence of hydrogen at reaction conditions. This results in the selective hydrogenation of conjugated unsaturates, thereby improving the color and color stability of the hydrocarbon fraction. The process uses small quantities of hydrogen and is run under mild conditions. A preferred selective hydrogenation catalyst is sulfided nickel on an alumina/clay support.

    摘要翻译: 本发明涉及一种改进烃馏分的颜色和颜色稳定性的方法。 该方法包括在反应条件下在氢存在下使烃馏分与选择性氢化催化剂接触。 这导致共轭不饱和物的选择性氢化,从而提高烃馏分的颜色和颜色稳定性。 该方法使用少量氢气,并在温和条件下运行。 优选的选择性氢化催化剂是氧化铝/粘土载体上的硫化镍。