PROCESS FOR PRODUCING OLEFINS

摘要

THE PRESENT INVENTION DISCLOSES A PROCESS FOR PRODUCING OLEFINS FROM PETROLEUM SATURATED HYDROCARBONS. THE PROCESS OF THE PRESENT INVENTION COMPRISES: CONTACTING A PREHEATED PETROLEUM SATURATED HYDROCARBONS FEEDSTOCK WITH A DEHYDROGENATION CATALYST IN A DEHYDROGENATION REACTION ZONE OF A REACTION SYSTEM TO OBTAIN A PETROLEUM HYDROCARBON STREAM CONTAINING UNSATURATED HYDROCARBON COMPOUNDS, IN WHICH THE DEHYDROGENATION REACTION HAS A CONVERSION RATE OF AT LEAST 20%; AND CONTACTING THE OBTAINED PETROLEUM HYDROCARBON STREAM CONTAINING THE UNSATURATED HYDROCARBON COMPOUNDS WITH OLEFINS CRACKING CATALYST IN AN OLEFIN CRACKING ZONE OF THE REACTION SYSTEM TO OBTAIN A PRODUCT STREAM CONTAINING OLEFINS WITH A REDUCED NUMBER OF CARBON ATOMS.