Continuous process for preparing ethylbenzene using liquid phase
alkylation and vapor phase transalkylation
    4.
    发明授权
    Continuous process for preparing ethylbenzene using liquid phase alkylation and vapor phase transalkylation 失效
    使用液相烷基化和气相烷基转移制备乙苯的连续方法

    公开(公告)号:US5600048A

    公开(公告)日:1997-02-04

    申请号:US364145

    申请日:1994-12-27

    摘要: There is provided a process for preparing ethylbenzene using liquid phase alkylation and vapor phase transalkylation. The liquid phase alkylation reaction may be catalyzed by an acidic solid oxide, such as MCM-22, MCM-49 and MCM-56. The vapor phase transalkylation may be catalyzed by a medium-pore size zeolite such as ZSM-5. The process may be run continuously with the continuous introduction of fresh benzene feed containing at least 500 ppm of nonbenzene hydrocarbon impurities. The combined ethylbenzene product of these alkylation and transalkylation reactions has very low levels of impurities including xylene, hydrocarbons having 7 or less carbon atoms and hydrocarbons having 9 or more carbon atoms.

    摘要翻译: 提供了使用液相烷基化和气相烷基转移制备乙苯的方法。 液相烷基化反应可以由酸性固体氧化物如MCM-22,MCM-49和MCM-56催化。 气相烷基转移可以通过中等孔径的沸石催化,例如ZSM-5。 该方法可以连续引入含有至少500ppm非苯烃杂质的新鲜苯进料而连续进行。 这些烷基化和烷基转移反应的组合乙苯产物具有非常低的杂质含量,包括二甲苯,具有7个或更少碳原子的烃和具有9个或更多个碳原子的烃。

    Preparation Of Molecular Sieve Catalysts And Their Use In The Production Of Alkylaromatic Hydrocarbons
    6.
    发明申请
    Preparation Of Molecular Sieve Catalysts And Their Use In The Production Of Alkylaromatic Hydrocarbons 有权
    分子筛催化剂的制备及其在烷基芳烃生产中的应用

    公开(公告)号:US20110118521A1

    公开(公告)日:2011-05-19

    申请号:US12997339

    申请日:2009-06-19

    摘要: A method is described for preparing a molecular sieve-containing catalyst for use in a catalytic process conducted in a stirred tank reactor. The method comprises providing a mixture comprising a molecular sieve crystal and forming the mixture into catalyst particles having an average cross-sectional dimension of between about 0.01 mm and about 3.0 mm. The mixture may include a binder and the catalyst particles are then calcined to remove water therefrom and, after calcination and prior to loading the catalyst particles into a reactor for conducting the catalytic process, the catalyst particles are coated with a paraffin inert to the conditions employed in the catalytic process.

    摘要翻译: 描述了一种用于制备用于在搅拌釜反应器中进行的催化方法中的含分子筛的催化剂的方法。 该方法包括提供包含分子筛晶体并将该混合物形成的平均横截面尺寸为约0.01mm至约3.0mm的催化剂颗粒的混合物。 混合物可以包括粘合剂,然后煅烧催化剂颗粒以从其中除去水,并且在煅烧之后并且在将催化剂颗粒装载到用于进行催化方法的反应器中之前,催化剂颗粒用对所用条件惰性的链烷烃涂覆 在催化过程中。

    Preparation of molecular sieve catalysts and their use in the production of alkylaromatic hydrocarbons
    7.
    发明授权
    Preparation of molecular sieve catalysts and their use in the production of alkylaromatic hydrocarbons 有权
    分子筛催化剂的制备及其在烷基芳烃生产中的应用

    公开(公告)号:US08586496B2

    公开(公告)日:2013-11-19

    申请号:US12997339

    申请日:2009-06-19

    IPC分类号: B01J29/06 C07C2/66

    摘要: A method is described for preparing a molecular sieve-containing catalyst for use in a catalytic process conducted in a stirred tank reactor. The method comprises providing a mixture comprising a molecular sieve crystal and forming the mixture into catalyst particles having an average cross-sectional dimension of between about 0.01 mm and about 3.0 mm. The mixture may include a binder and the catalyst particles are then calcined to remove water therefrom and, after calcination and prior to loading the catalyst particles into a reactor for conducting the catalytic process, the catalyst particles are coated with a paraffin inert to the conditions employed in the catalytic process.

    摘要翻译: 描述了一种用于制备用于在搅拌釜反应器中进行的催化方法中的含分子筛的催化剂的方法。 该方法包括提供包含分子筛晶体并将该混合物形成的平均横截面尺寸为约0.01mm至约3.0mm的催化剂颗粒的混合物。 混合物可以包括粘合剂,然后煅烧催化剂颗粒以从其中除去水,并且在煅烧之后并且在将催化剂颗粒装载到用于进行催化方法的反应器中之前,催化剂颗粒用对所用条件惰性的链烷烃涂覆 在催化过程中。