Method and system for controlling the activity of a crystalline zeolite cracking catalyst

摘要

A method and system for cracking hydrocarbons and regeneration of the catalyst is described with particular emphasis directed to partially restoring the activity of the catalyst after an initial hydrocarbon conversion use by heat soaking the catalyst at an elevated temperature before use in a second hydrocarbon conversion zone. This case is a division of application Ser. No. 595,833, filed Jul. 14, 1975.