Process for vaporisation of a liquid feedstock in a catalytic cracking process in a fluid bed

摘要

Fluid bed process for cracking a hydrocarbon feedstock, performed in a substantially tubular and vertical elongate reaction zone 1, into which zone the catalyst is introduced at the lower base of the elongate zone via a conduit 2 and the feedstock is introduced via at least one conduit 3 emerging into the reaction zone at a level higher than that of the catalyst entry. The invention is characterised in that a fluid which may be a gas or at least one hydrocarbon is introduced above the level of the feedstock entry via at least one conduit 5, with a view to improving the vaporisation of the feedstock. <IMAGE>