Fcc catalyst manufacturing process

Details Fcc catalyst manufacturing process Fcc catalyst manufacturing process

B - Operations, Transporting

01

J

B01J 29/08 (2006.01) B01J 37/00 (2006.01) C10G 11/05 (2006.01) B01J 21/16 (2006.01)

Patent

CA 2458367

An in situ process for making improved zeolitic fluid cracking catalysts by spray drying a mixture of (i) hydrous kaolin and/or metakaolin, and (ii) calcined aluminum source, said calcined aluminum source being derived from a pulverized, ultrafine kaolin, calcining the resulting microspheres to convert hydrous kaolin to metakaolin, and reacting microspheres composed of a mixture of metakaolin and calcined aluminum source with an alkaline sodium silicate solution. The weight percent of metakaolin in the calcined microspheres is greater than the calcined aluminum source content.

L'invention concerne un procédé in situ pour fabriquer des catalyseurs de craquage fluides zéolithiques par séchage par atomisation d'un mélange. Ce dernier comprend (i) du kaolin et/ou métakaolin, et (ii) une source d'alumine calcinée dérivée d'un kaolin ultrafin pulvérisé. Ce procédé consiste ensuite à calciner les microsphères ainsi obtenues pour transformer le kaolin hydraté en métakaolin, et à faire réagir les microsphères composées d'un mélange de métakaolin et d'une source d'alumine calcinée avec une solution de silicate de sodium alcalin. Le pourcentage en poids de métakaolin dans les microsphères calcinées est supérieur à la teneur en source d'alumine calcinée.

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