CATALYTIC CRACKING OF HYDROCARBONS

Cyclic regenerative catalytic cracking process, of the known kind, in which the catalyst, having come into contact with feed in a reactor under cracking conditions, in the absence of a hydrogen-reactant under cracking conditions, in the absence of added hydrogen, passes through a circuit outside in which a regenerator is included, and which returns the catalyst to the reactor in regenerated form, the mobile mass of catalyst containing a concentration of a metal of the platinum or rhenium group, which is sufficient to catalyze the oxidation of monoxide carbon in the regenerator, but insufficient to act as a poison under cracking conditions, characterized in that the metal of the platinum group, or rhenium, is applied to the catalyst while the catalyst is passing through said circuit. (Machine-translation by Google Translate, not legally binding)