A catalyst composition and its use thereof in aromatics...

B - Operations – Transporting – 01 – J

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B01J 29/70 (2006.01) B01J 21/16 (2006.01) C07C 2/66 (2006.01)

Patent

CA 2675204

This disclosure relates to a catalyst composition (a) a crystalline MCM-22 molecular sieve; and (b) a binder comprising at least 1 wt. % of a titanium compound. In one aspect of this disclosure, the titanium compound comprises at least one of titanium oxide, titanium hydroxide, titanium sulfate, titanium phosphate, or any combination thereof. In another aspect of this disclosure, the catalyst composition further comprises a crystalline MCM-22 family molecular sieve comprising at least one of MCM-22, MCM-36, MCM-49, MCM-56, ITQ-I, ITQ-2, ITQ-30, PSH-3, ERB-I, SSZ-25, or any combination thereof. In other embodiments, this disclosure relates to a process for preparing the catalyst composition of this disclosure, the process comprises (a) providing the crystalline MCM-22 family molecular sieve and the binder comprising at least 1 wt.% of a titanium compound to form a mixture; and (b) forming the mixture into the catalyst composition. In a preferred embodiment, the forming step comprises extruding. In yet other embodiments, this disclosure discloses a process for alkylating an aromatic hydrocarbon with an alkylating agent to produce an alkylated aromatic product by contacting the aromatic hydrocarbon and alkylating agent with the catalyst composition.

L'invention porte sur une composition catalytique comprenant (a) un tamis moléculaire MCM-49 cristallin; et (b) un liant comprenant au moins 1 % en poids d'un composé de titane. Dans un aspect de cette invention, le composé de titane comprend au moins un élément parmi l'oxyde de titane, l'hydroxyde de titane, le sulfate de titane, le phosphate de titane ou toute combinaison de ceux-ci. Dans un autre aspect de cette invention, la composition catalytique comprend en outre un tamis moléculaire cristallin de la famille MCM-22, comprenant au moins un élément parmi le MCM-22, le MCM-36, le MCM-49, le MCM-56, l'ITQ-I, l'ITQ-2, l'ITQ-30, le PSH-3, l'ERB-I, le SSZ-25, ou toute combinaison de ceux-ci. Dans d'autres modes de réalisation, l'invention porte sur un procédé de préparation de la composition catalytique. Ce procédé comprend les opérations consistant à (a) prendre le tamis moléculaire MCM-49 cristallin et le liant comprenant au moins 1 % en poids d'un composé du titane pour former un mélange; et (b) façonner le mélange dans la composition catalytique. Dans un mode de réalisation préféré, l'étape de façonnage comprend l'extrusion. Dans encore d'autres modes de réalisation, l'invention porte sur un procédé d'alkylation d'un hydrocarbure aromatique par un agent alkylant pour obtenir un produit aromatique alkylé par la mise en contact de l'hydrocarbure aromatique et de l'agent alkylant avec la composition catalytique.

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