Molecular sieve catalyst composition, its making and use in...

Details Molecular sieve catalyst composition, its making and use in... Molecular sieve catalyst composition, its making and use in...

B - Operations, Transporting

01

J

B01J 29/85 (2006.01) B01J 37/00 (2006.01) B01J 37/04 (2006.01)

Patent

CA 2451280

The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a making a molecular sieve catalyst composition by forming a slurry by combining a molecular sieve, a binder and a matrix material, wherein the slurry has a pH, above or below the isoelectric point of the molecular sieve. The catalyst composition has improved attrition resistance, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.

L'invention concerne une composition catalysante à tamis moléculaire, une méthode de préparation et de production de la composition catalysante à tamis moléculaire, et une méthode utilisant la composition catalysante. L'invention concerne en particulier une méthode de production d'une composition catalysante à tamis moléculaire, qui consiste à former une suspension en combinant un tamis moléculaire, un liant et un matériel de base, la suspension présentant un pH supérieur ou inférieur au point isoélectrique du tamis moléculaire. La composition catalysante présente une résistance à l'usure améliorée, particulièrement utile dans un procédé de conversion destiné à produire une (des) oléfine(s), de préférence de l'éthylène et/ou du propylène, à partir d'une charge de départ, de préférence une charge de départ contenant un composé oxygéné.

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