Process for rejuvenating a catalyst composition
    35.
    发明授权
    Process for rejuvenating a catalyst composition 有权
    催化剂组合物再生方法

    公开(公告)号:US08623777B2

    公开(公告)日:2014-01-07

    申请号:US12738061

    申请日:2008-10-07

    Abstract: This disclosure relates to a method for rejuvenating a catalyst, comprising contacting the catalyst with a gaseous feedstock at rejuvenation conditions for at least one hour to form a rejuvenated catalyst and a gaseous product, wherein the catalyst comprises at least 10 wt. % of a molecular sieve, wherein the catalyst prior to the contacting step comprises from 0.001 wt. % to 45 wt. % of hydrocarbons and 0.001 to 10 wt. % nitrogen containing components based on the total weight of the catalyst prior to the contacting step, wherein the molecular sieve comprises at least one of a MCM-22 family molecular sieve, a molecular sieve having a framework type of *BEA, a molecular sieve having a framework type of FAU, and a molecular sieve having a framework type of MOR, wherein the gaseous feedstock comprises at least one of N2, H2, alkane, He, Ar, CO, and CO2, wherein the gaseous product has at least a portion of the gaseous feedstock and at least a portion of the hydrocarbons of the catalyst and at least a portion of the nitrogen containing components of the catalyst, wherein the rejuvenation conditions comprise a temperature in the range from about 400 to 600° C., a pressure in the range from about 101.3 kPa-a to 10130 kPa-a, a space hourly velocity in the range of from 0.05 to 10 hr−1.

    Abstract translation: 本公开涉及一种用于使催化剂再生的方法,包括在再生条件下将催化剂与气态原料接触至少1小时,以形成复原的催化剂和气态产物,其中催化剂包含至少10wt。 %的分子筛,其中在接触步骤之前的催化剂包含0.001重量% %至45重量% %的烃和0.001至10wt。 %的含氮组分基于在接触步骤之前的催化剂的总重量,其中分子筛包括MCM-22族分子筛,具有骨架类型为* BEA的分子筛中的至少一种,分子筛具有 骨架类型的FAU和具有骨架类型MOR的分子筛,其中气态原料包括N 2,H 2,烷烃,He,Ar,CO和CO 2中的至少一种,其中气态产物具有至少一部分 的气态原料和催化剂的烃的至少一部分和催化剂的至少一部分含氮组分,其中再生条件包括约400-600℃的温度,压力 在约101.3kPa-a至10130kPa-a的范围内,空间时速在0.05至10小时-1的范围内。

    MULTIPLE ZEOLITE CATALYST AND METHOD OF USING THE SAME FOR TOLUENE DISPROPORTIONATION
    40.
    发明申请
    MULTIPLE ZEOLITE CATALYST AND METHOD OF USING THE SAME FOR TOLUENE DISPROPORTIONATION 失效
    多种沸石催化剂及其使用相同方法进行TOLUENE分解

    公开(公告)号:US20130090507A1

    公开(公告)日:2013-04-11

    申请号:US13687982

    申请日:2012-11-28

    Abstract: The multiple zeolite catalyst is a catalytic composition used to convert alkylaromatic hydrocarbons to BTX, particularly to commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VI of the Periodic Table of the Elements. The two zeolites have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt % molybdenum. The multiple zeolite catalyst may further be used to convert toluene to mixed xylene isomers, particularly with a ZSM-5:mordenite ratio of 2:1 by weight.

    Abstract translation: 多重沸石催化剂是用于将烷基芳族烃转化为BTX,特别是商业上有价值的二甲苯的催化组合物。 催化剂是通过混合至少两种选自丝光沸石,β沸石,ZSM-5,ZSM-11,ZSM-12,ZSM-22,ZSM-23,MFI拓扑沸石,NES拓扑沸石,EU-1,MAPO -36,SAPO-5,SAPO-11,SAPO-34和SAPO-41,并加入至少一种选自元素周期表第Ⅵ族的金属组分。 两种沸石具有不同的物理和化学特性,如孔径和酸度。 示例性催化剂包括丝光沸石,ZSM-5和3重量%的钼。 多沸石催化剂还可用于将甲苯转化为混合二甲苯异构体,特别是ZSM-5:丝光沸石比例为2:1重量比。

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