Patent attributes
The invention is to provide a catalyst excellent in product producibility and selectivity, and in coking degradation resistance and regeneration degradation resistance, which is for production of ethylene and propylene through catalytic conversion from a hydrocarbon material. The invention relates to a method for producing ethylene and propylene through catalytic conversion from an olefin, by contacting a hydrocarbon material with a zeolite-containing shaped catalyst satisfying the following requirements (1) to (6), in a reactor:(1) the zeolite is an intermediate pore-size zeolite having a pore size of from 5 to 6.5 angstroms,(2) the zeolite does not substantially contain a proton,(3) the zeolite contains at least one metal selected from the group consisting of metals belonging to the Group IB of the Periodic Table,(4) the zeolite-containing shaped catalyst comprises silica as a binder,(5) the zeolite-containing shaped catalyst has a side-crush strength of at least 2.5 N/mm,(6) the zeolite-containing shaped catalyst has a sodium content of 500 ppm or less as an H-exchange type thereof.
