利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

63 条记录 (耗时 0.021 秒)

    Production of tertiary alkyl ether using improved zeolite catalyst
    32.
    发明授权
    Production of tertiary alkyl ether using improved zeolite catalyst 失效
    使用改进的沸石催化剂生产叔烷基醚

    公开(公告)号：US5225609A

    公开(公告)日：1993-07-06

    申请号：US808496

    申请日：1991-12-17

    申请人： Weldon K. Bell ,  Werner O. Haag

    发明人： Weldon K. Bell ,  Werner O. Haag

    IPC分类号： C07C41/06

    CPC分类号： C07C41/06

    摘要： A process is disclosed for the production of alkyl tertiary alkyl ether from alkanol and iso-olefin employing zeolite catalyst, particularly zeolite Beta, that results is a high ether selectivity and a significant reduction in the formation of olefin oligomer by-product. The improvement is realized by incorporating a catalyst pretreatment step in the overall etherification process. The zeolite catalyst pretreatment comprises either steaming or a hydrothermal treatment using liquid water at elevated temperature. The process is particularly effective in reducing the formation of dimer by-product in the zeolite Beta catalyzed process for the formation of MTBE with high selectivity.

    摘要翻译： 公开了一种使用沸石催化剂，特别是β沸石从链烷醇和异烯烃制备烷基叔烷基醚的方法，其结果是高的醚选择性和烯烃低聚物副产物的形成显着降低。 通过在整体醚化过程中引入催化剂预处理步骤来实现改进。 沸石催化剂预处理包括在高温下使用液态水蒸汽或水热处理。 该方法特别有效地减少用于形成MTBE的沸石β催化过程中二聚体副产物的形成，具有高选择性。

    Double bond isomerization of 1-olefin containing feeds using ZSM-22, ZSM-23 or ZSM-35
    33.
    发明授权
    Double bond isomerization of 1-olefin containing feeds using ZSM-22, ZSM-23 or ZSM-35 失效
    使用ZSM-22，ZSM-23或ZSM-35双键异构化含1-烯烃的进料

    公开(公告)号：US5177281A

    公开(公告)日：1993-01-05

    申请号：US813718

    申请日：1991-12-27

    申请人： Werner O. Haag ,  Jose G. Santiesteban

    发明人： Werner O. Haag ,  Jose G. Santiesteban

    IPC分类号： C07C5/25

    CPC分类号： C07C5/2518

    摘要： A method for isomerizing a 1-olefin-containing organic feedstock having an average carbon number of about 4 to 5, e.g., 1-butene, to convert 1-olefin to 2-olefin at temperatures less than 200.degree. C., with a double bond isomerization catalyst comprising a zeolite sorbing 30 to 55 mg n-hexane at 90.degree. C., 83 torr, and 15 to 40 mg 3-methylpentane at 90.degree. C., 90 torr, per g dry zeolite in the hydrogen form, e.g., ZSM-22, ZSM-23, or ZSM-35. Catalyst aging is minimal despite operation at low temperatures and high pressures.

    摘要翻译： 使平均碳数为约4〜5的1-烯烃的有机原料异构化的方法，例如1-丁烯，在低于200℃的温度下将1-烯烃转化为2-烯烃，用双 键异构化催化剂，其包含以氢气形式在90℃，90托和30至40mg 3-甲基戊烷在90℃下吸附30至55mg正己烷，90托，每克干沸石的沸石，例如 ，ZSM-22，ZSM-23或ZSM-35。 尽管在低温和高压下操作，催化剂老化也很小。

    Ether production
    34.
    发明授权
    Ether production 失效
    乙醚生产

    公开(公告)号：US5144086A

    公开(公告)日：1992-09-01

    申请号：US695843

    申请日：1991-05-06

    申请人： Mohsen N. Harandi ,  Werner O. Haag ,  Hartley Owen ,  Weldon K. Bell

    发明人： Mohsen N. Harandi ,  Werner O. Haag ,  Hartley Owen ,  Weldon K. Bell

    IPC分类号： C07C1/24 ,  C07C41/09

    CPC分类号： C07C41/09 ,  C07C1/24 ,  C07C2529/70

    摘要： A process for synthesizing di-isopropyl ether (DIPE) by etherification of isopropanol. A multi-stage process can employ propene in mixture with other feedstock materials, such as propane from refinery gas, in a primary hydration stage to produce isopropanol. The isopropanol is enriched between stages to remove water. In the second reaction stage the isopropanol is converted catalytically with large pore acidic zeolite to yield DIPE, which can be separated to recover pure propene.

    摘要翻译： 通过异丙醇醚化合成二异丙醚（DIPE）的方法。 多级方法可以在初级水合阶段中使用丙烯与其它原料物质混合，例如来自精炼厂气体的丙烷，以产生异丙醇。 阶段之间富含异丙醇以除去水分。 在第二反应阶段，异丙醇用大孔酸性沸石催化转化，得到DIPE，可以分离回收纯丙烯。

    Conversion of light hydrocarbons to ether rich gasoline
    36.
    发明授权
    Conversion of light hydrocarbons to ether rich gasoline 失效
    轻质烃转化为富含乙醚的汽油

    公开(公告)号：US5013329A

    公开(公告)日：1991-05-07

    申请号：US331201

    申请日：1989-03-31

    申请人： Weldon K. Bell ,  Werner O. Haag ,  Mohsen N. Harandi ,  Hartley Owen

    发明人： Weldon K. Bell ,  Werner O. Haag ,  Mohsen N. Harandi ,  Hartley Owen

    IPC分类号： B01J31/10 ,  C07B61/00 ,  C10G3/00 ,  C10G35/00 ,  C10L1/02 ,  C10L1/182 ,  C10L1/185

    CPC分类号： C10L1/023 ,  Y02P30/20

    摘要： A process is disclosed for converting a light hydrocarbon feedstock that contains a mixture of linear and branched olefins to ether-rich high octane gasoline streams that include tertiary alkyl and isoalkyl ethers such as MTBE, TAME, methyl isopropyl ether (MIPE), and methyl sec-butylether (MSBE). The conversion is achieved by utilizing the differing reactivity of tertiary olefins under selected conditions compared to linear olefins in the catalyzed etherification processes. The discovery has been made that unreacted olefins from the etherification reactions can be converted to gasoline boiling range hydrocarbons by contacting them with zeolite catalyst at elevated temperature. Further, it has been discovered that unreacted paraffins in the integrated process can be dehydrogenated to produce C.sub.3 -C.sub.4 olefins which can be recycled to the etherification process.

    摘要翻译： 公开了一种将包含直链和支链烯烃的混合物的轻质烃原料转化成富含高级辛烷值汽油的方法，其中包括叔烷基和异烷基醚如MTBE，TAME，甲基异丙醚（MIPE）和甲基sec 丁基醚（MSBE）。 通过在催化醚化过程中与线性烯烃相比，在选择的条件下利用三级烯烃的不同反应性来实现转化。 已经发现，来自醚化反应的未反应的烯烃可以通过在升高的温度下与沸石催化剂接触而转化为汽油沸程烃。 此外，已经发现，一体化方法中的未反应的链烷烃可以脱氢生产可以再循环到醚化过程的C 3 -C 4烯烃。

    Method for preparing a promoted iron catalyst and catalyst prepared by the method for conversion of synthesis gas to liquid hydrocarbons
    37.
    发明授权
    Method for preparing a promoted iron catalyst and catalyst prepared by the method for conversion of synthesis gas to liquid hydrocarbons 失效
    通过将合成气转化为液态烃的方法制备促进的铁催化剂和催化剂的方法

    公开(公告)号：US4994428A

    公开(公告)日：1991-02-19

    申请号：US324796

    申请日：1989-03-17

    申请人： Weldon K. Bell ,  Werner O. Haag

    发明人： Weldon K. Bell ,  Werner O. Haag

    IPC分类号： B01J23/78 ,  B01J37/10 ,  B01J37/16 ,  C07C1/04

    CPC分类号： B01J37/10 ,  B01J23/78 ,  B01J37/16 ,  C07C1/0445 ,  C07C2523/745 ,  C07C2527/232

    摘要： A novel Fischer Tropsch iron catalyst that has unusually high selectivity for liquid hydrocarbons (low selectivity for methane) is provided. The catalyst is prepared by treatment of the usual inactive catalyst precursor with water vapor at elevated temperature either after conventional activation by syngas or concurrently therewith. Surprisingly, the "selectivation" with water vapor does not affect catalytic activity. The novel "selectivated" catalyst may be used to advantage either to increase temperature and throughput, or to increase liquid hydrocarbon selectivity, compared with conventional catalyst that has not been "selectivated".

    摘要翻译： 提供了一种具有非常高的液体烃选择性（甲烷选择性低）的新型费 - 托铁催化剂。 催化剂是通过在常规的合成气活化或与其同时的高温下用水蒸气处理常规的惰性催化剂前体来制备的。 令人惊讶的是，水蒸汽的“选择”不影响催化活性。 与未进行“选择”的常规催化剂相比，新型“选择性”催化剂可以用于增加温度和通量，或者增加液体烃选择性。

    Selective production of para dialkyl substituted benzenes
    39.
    发明授权
    Selective production of para dialkyl substituted benzenes 失效
    选择性生产PARA二烷基取代的苯乙烯

    公开(公告)号：US4117026A

    公开(公告)日：1978-09-26

    申请号：US841073

    申请日：1977-10-11

    申请人： Werner O. Haag ,  David H. Olson

    发明人： Werner O. Haag ,  David H. Olson

    IPC分类号： B01J29/40 ,  B01J29/65 ,  B01J29/70 ,  C07C3/52 ,  C07C3/62

    CPC分类号： B01J29/40 ,  B01J2229/12 ,  B01J2229/26 ,  B01J2229/34 ,  B01J2229/36 ,  B01J2229/42 ,  B01J29/65 ,  B01J29/70 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70

    摘要： A catalytic process is provided for the selective production of para dialkyl substituted benzenes containing alkyl groups of 1 to 4 carbon atoms, typified by para-xylene, by contacting, under conversion conditions, a hydrocarbon precursor selected from the group consisting of mono alkyl-substituted benzenes having 1-4 carbon atoms in the alkyl substituent, e.g., toluene, ethyl benzene, propyl benzene, or butyl benzene; a C.sub.2 -C.sub.15 olefin and a C.sub.3 -C.sub.60 paraffin, or mixtures thereof including mixtures of benzene with at least one of the aforementioned olefins or paraffins with a zeolite-containing catalyst characterized by a xylene sorption capacity greater than 1 gram/100 grams of zeolite and an ortho xylene sorption time for 30 percent of said capacity of greater than 10 minutes, said sorption capacity and sorption time being measured at 120.degree. C and a xylene pressure of 4.5 .+-.0.8 mm. of mercury, said catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and recovering from the resulting product mixture, a para dialkyl substituted benzene in an amount greater than the thermodynamic equilibrium concentration thereof in total dialkyl substituted benzenes produced.