Manufacture of lower aromatic compounds
    2.
    发明授权
    Manufacture of lower aromatic compounds 失效
    低级芳香族化合物的制造

    公开(公告)号:US4078990A

    公开(公告)日:1978-03-14

    申请号:US774304

    申请日:1977-03-04

    CPC分类号: C10L1/06 C07C6/12 C10G2400/30

    摘要: Certain acidic heterogeneous catalysts produce large yields of benzene, toluene and xylene from alkyl aromatics of at least nine carbon atoms by a mechanism different from the classical disproportionation reaction characteristic of acid catalysts. Typically, aromatic mixtures so derived from such stocks have unusually low content of ethyl benzene, thus greatly simplifying separation of xylene isomers.

    摘要翻译: 某些酸性非均相催化剂通过与酸催化剂的经典歧化反应特性不同的机理,从至少9个碳原子的烷基芳族化合物产生大量的苯,甲苯和二甲苯。 通常,从这种原料得到的芳族混合物具有非常低的乙苯含量,因此极大地简化了二甲苯异构体的分离。

    Light olefin processing
    5.
    发明授权
    Light olefin processing 失效
    轻烯烃加工

    公开(公告)号:US4150062A

    公开(公告)日:1979-04-17

    申请号:US889486

    申请日:1978-03-23

    摘要: An improved processing technique is provided for conversion of olefins of 2 to 4 carbon atoms to product comprising high octane gasoline components. Embodiments of the present improved processing technique include conversion of light olefins to high octane olefinic gasoline components, and conversion of light olefins to high octane aromatic gasoline components.The improved technique comprises contacting an appropriate light olefin feedstock with a catalyst comprising a crystalline aluminosilicate zeolite characterized by a silica/alumina mole ratio of at least 12 and a constraint index, hereinafter defined, within the approximate range of 1 to 12 in the presence of a relatively large amount of co-fed water. The amount of co-fed water is maintained at from about 0.5 to about 15 moles of water/mole of olefin feedstock.

    摘要翻译: 提供了一种改进的加工技术,用于将2至4个碳原子的烯烃转化成包含高辛烷值汽油组分的产品。 本改进的处理技术的实施方案包括将轻质烯烃转化成高辛烷值的烯烃汽油组分,以及将轻质烯烃转化成高辛烷值的芳族汽油组分。

    Controlled oligomerization of olefins
    6.
    发明授权
    Controlled oligomerization of olefins 失效
    烯烃的控制低聚

    公开(公告)号:US3997621A

    公开(公告)日:1976-12-14

    申请号:US559101

    申请日:1975-03-17

    申请人: James A. Brennan

    发明人: James A. Brennan

    IPC分类号: C07C2/20 C07C3/18

    摘要: Oligomerization of alpha olefins catalyzed by boron trifluoride is controlled to yield desired trimer as a dominant product by adding small amounts of ester together with water or alcohol promoter.

    摘要翻译: 通过三氟化硼催化的α-烯烃的低聚被控制,通过将少量的酯与水或醇促进剂一起加入,产生所需的三聚体作为主要产物。

    Manufacture of lower aromatic compounds
    7.
    发明授权
    Manufacture of lower aromatic compounds 失效
    低级芳香族化合物的制造

    公开(公告)号:US3945913A

    公开(公告)日:1976-03-23

    申请号:US500432

    申请日:1974-08-26

    CPC分类号: C10G59/02

    摘要: Certain acidic heterogeneous catalysts produce large yields of benzene, toluene and xylene from alkyl aromatics of at least nine carbon atoms by a mechanism different from the classical disproportionation reaction characteristic of acid catalysts. These catalysts are characterized by a zeolite of the ZSM-5 type or zeolite ZSM-12 or zeolite ZSM-21. The reaction has the unique function of providing aliphatic by-products of higher molecular weight than is to be expected by splitting side chains from benzene rings. Typically, aromatic mixtures so derived from such charge stocks have unusually low content of ethyl benzene, thus greatly simplifying separation of xylene isomers.

    摘要翻译: 某些酸性非均相催化剂通过与酸催化剂的经典歧化反应特性不同的机理,从至少9个碳原子的烷基芳族化合物产生大量的苯,甲苯和二甲苯。 这些催化剂的特征在于ZSM-5型沸石或沸石ZSM-12或沸石ZSM-21。 该反应具有提供比通过从苯环分离侧链预期的更高分子量的脂肪族副产物的独特功能。 通常,从这种电荷原料得到的芳族混合物具有非常低的乙苯含量,因此极大地简化了二甲苯异构体的分离。

    Conversion of synthesis gas to hydrocarbon mixtures utilizing a dual
catalyst bed
    9.
    发明授权
    Conversion of synthesis gas to hydrocarbon mixtures utilizing a dual catalyst bed 失效
    使用双催化剂床将合成气转化为烃混合物

    公开(公告)号:US4304871A

    公开(公告)日:1981-12-08

    申请号:US825875

    申请日:1977-08-19

    IPC分类号: C07C1/04

    摘要: A gaseous mixture of carbon monoxide and hydrogen is passed in contact over a first catalyst bed comprising an iron or cobalt containing Fischer-Tropsch catalyst in combination with a crystalline aluminosilicate of the class of crystalline zeolite represented by ZSM-5 so as to obtain a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90% overhead and being a predominantly olefinic product. The total products from said contact including said liquid hydrocarbon product are then converted over a second catalyst bed containing HZSM-5 to obtain a highly aromatic product, i.e., greater than 20 weight percent.

    摘要翻译: 将一氧化碳和氢气的气体混合物在包含含铁或钴的费 - 托催化剂的第一催化剂床上与由ZSM-5表示的结晶沸石类的结晶硅铝酸盐组合使其接触,以获得液体 烃产物在90%塔顶馏出物下沸点低于400°F,主要是烯烃产物。 来自包括所述液体烃产物的所述接触的总产物然后在含有HZSM-5的第二催化剂床上转化,以获得高度芳族的产物,即大于20重量%。

    Conversion of syngas to high octane olefinic naphtha
    10.
    发明授权
    Conversion of syngas to high octane olefinic naphtha 失效
    合成气转化为高辛烷值的烯烃石脑油

    公开(公告)号:US4269783A

    公开(公告)日:1981-05-26

    申请号:US775129

    申请日:1977-03-07

    IPC分类号: C07C1/02 C07C27/06

    摘要: A method is disclosed for the conversion of a syngas to a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90% overhead and being a predominantly olefinic product, wherein the olefins have substantially internal double bonds. The method for accomplishing this stated result involves an improvement in the method for the conversion of synthesis gas by contacting the same with a catalyst composite comprising a mixture of a Fischer-Tropsch catalyst and a volume excess of an acidic catalyst, e.g., silica-alumina or a crystalline aluminosilicate zeolite and wherein the activity of the acidic component is balanced with the activity of the Fischer-Tropsch component so as to maximize the yield of desired olefinic product.

    摘要翻译: 公开了一种在90%塔顶馏分将合成气转化为沸点低于400°F的液体烃产物并且主要是烯烃产物的方法,其中烯烃具有基本上内部的双键。 实现所述结果的方法涉及通过使合成气与包含费 - 托催化剂和体积过量的酸性催化剂的混合物的催化剂复合物接触来改进合成气的方法,例如二氧化硅 - 氧化铝 或结晶硅铝酸盐沸石,并且其中酸性组分的活性与费 - 托组分的活性相平衡,以使所需烯属产物的产率最大化。