Catalyst compositions comprising metal phosphate bound...

C - Chemistry – Metallurgy – 10 – G

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C10G 11/05 (2006.01) B01J 27/18 (2006.01) B01J 29/06 (2006.01) B01J 29/83 (2006.01)

Patent

CA 2561971

A catalyst composition comprising metal phosphate binder and zeolite can be used to enhance olefin yields during hydrocarbon cracking processes. The composition typically further comprises aluminum phosphate, and the metal of the metal phosphate is a metal other than aluminum. Depending on the metal chosen, enhanced propylene and isobutylene yields in fluid catalytic cracking processes can be obtained compared to catalysts that do not contain such metal phosphate binders. The catalyst can also comprise non-zeolitic molecular sieves, thereby making the composition suitable for use in areas outside of catalytic cracking, e.g., purification and adsorbent applications.

Une composition de catalyse comprenant un liant phosphate de métal et un zéolite que l'on peut utiliser pour améliorer les rendements en oléfines pendant des procédés de craquage d'hydrocarbures. La composition comprend normalement un phosphate d'aluminium et le métal du phosphate de métal est un métal autre que l'aluminium. D'après le métal choisi, on obtient des rendements améliorés de propylène et d'isobutylène dans les procédés de craquage catalytique fluide par rapport aux catalyseurs ne contenant pas de liants de phosphate de métal. Le catalyseur peut également comprendre les tamis moléculaires non zéolitiques, ce qui permet d'obtenir une composition se prêtant à une utilisation dans des zones extérieures au craquage catalytique, notamment dans des applications de purification et adsorbantes.

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