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.