Method of regenerating deactivated catalyst

Details Method of regenerating deactivated catalyst Method of regenerating deactivated catalyst

B - Operations, Transporting

01

J

B01J 29/90 (2006.01) B01J 38/44 (2006.01) C10G 35/095 (2006.01)

Patent

CA 2143826

A process for regenerating a deactivated catalyst or redispersing catalytic metals in a fresh catalyst comprising at least one Group VIII catalytic metal and zeolite comprises coke burn, oxyhalogenation, lower pressure, reduced temperature stripping, and low pressure final hydrogen reduction, with controlled hydrogen halide partial pressures in the stripping and reduction stages.

Procédé de régénération d'un catalyseur désactivé ou de redispersion de métaux catalytiques dans un catalyseur neuf comprenant au moins un métal catalytique du groupe VIII et une zéolite. Ledit procédé comprend les étapes suivantes: combustion du coke, oxyhalogénation, rectification à basse pression et à température réduite, et réduction finale par hydrogène, à basse pression. Pour les étapes de rectification et de réduction, les pressions partielles de l'halo-acide sont régulées.

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