CATALYTIC CRACKING METHOD FOR TREATING A FRACTION HAVING A LOW AMOUNT OF CONRADSON CARBON

摘要

The present invention describes a method for the catalytic cracking of a slightly coking feedstock containing 0.1 wt % of Conradson carbone and having a hydrogen content of more than 12.7 wt % including at least a cracking area for the feedstock an area for separating/stripping the effluents from the coked catalyst grains and an area for regenerating said grains characterised in that upstream and/or during the step of regenerating the catalyst at least one solid carbon material in fluidised state having a carbon content of no less than 80 wt % is injected into a dense bed of coked catalyst.