Abstract: Catalyst compositions comprising a zeolite and a mesoporous support or binder are disclosed. The mesoporous support or binder comprises a mesoporous metal oxide having a particle diameter of greater than or equal to 20 ?m at 50% of the cumulative pore size distribution (d50). Also disclosed are processes for producing a mono-alkylated aromatic compound (e.g., ethylbenzene or cumene) which exhibit improved yield of the mono-alkylated aromatic compound using alkylation catalysts comprising one or more of these catalyst compositions.

Abstract: Catalyst compositions comprising a zeolite and a mesoporous support or binder are disclosed. The mesoporous support or binder comprises a mesoporous metal oxide having a particle diameter of greater than or equal to 20 ?m at 50% of the cumulative pore size distribution (d50). Also disclosed are processes for producing a mono-alkylated aromatic compound (e.g., ethylbenzene or cumene) which exhibit improved yield of the mono-alkylated aromatic compound using alkylation catalysts comprising one or more of these catalyst compositions.

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.

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.

Abstract: A process for alkylating an alkylatable aromatic compound is disclosed, in which the process includes: (a) contacting the alkylatable aromatic compound and an alkylating agent with an alkylation catalyst under alkylation conditions; and (b) when said alkylation catalyst has become at least partially deactivated, contacting said alkylation catalyst with a C1-C8 hydrocarbon under alkylation catalyst reactivation conditions. The process provides comparable rejuvenation of catalyst activity as air rengenaration with minimal or no increase in amounts of undesirable byproducts such as polypropylbenzenes in the case of benzene alkylation with propylene.