| 简介 |
PROBLEM TO BE SOLVED : To provide a catalyst for catalytic cracking of hydrocarbon oils, which can allow a gasoline fraction having a high octane number to be produced in high yield and can allow LPG having, particularly, high propylene content to be also produced in high yield while suppressing an increase of the yield of a heavy fraction.
SOLUTION : The catalyst for catalytic cracking of hydrocarbon oils contains : a predetermined amount of a catalyst granule A containing zeolite having a sodalite cage structure, silica sol-derived silicon, aluminum primary phosphate-derived phosphorus/aluminum, a clay mineral, and a rare earth metal; and another predetermined amount of another catalyst granule B containing pentasil zeolite and has 0.015-3, 000 of a ratio of the mass of the aluminum primary phosphate-derived phosphorus/aluminum of the catalyst granule A to that of the pentasil zeolite of the catalyst granule B.
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