CATALYST FOR CATALYTIC CRACKING OF HYDROCARBON OIL AND METHOD FOR CATALYTIC CRACKING OF HYDROCARBON OIL

摘要

A catalyst for catalytic cracking of a hydrocarbon oil can produce a gasoline fraction having a high octane number in high yield while suppressing an increase in yield of a heavy distillate, and produce LPG having a high propylene content in high yield. The catalyst includes a specific amount of a granulated catalyst A that includes a zeolite having a sodalite cage structure, silicon derived from a silica sol, phosphorus and aluminum derived from mono aluminum phosphate, a clay mineral, and a rare-earth metal, and a specific amount of a granulated catalyst B that includes a pentasil-type zeolite, the ratio of the mass of phosphorus and aluminum derived from mono aluminum phosphate included in the granulated catalyst A to the mass of the pentasil-type zeolite included in the granulated catalyst B being 0.015 to 3000.

主权项

1. A catalyst for catalytic cracking of a hydrocarbon oil, the catalyst comprising:
a granulated catalyst A that comprises 20 to 50 mass % of a zeolite having a sodalite cage structure, 10 to 30 mass % (on a SiO2 basis) of silicon derived from a silica sol, 0.1 to 21 mass % (on an Al2O3.3P2O5 basis) of phosphorus and aluminum derived from mono aluminum phosphate, 5 to 65 mass % of a clay mineral, and 0 to 10 mass % (on an oxide basis) of a rare-earth metal; and a granulated catalyst B that comprises 1 to 70 mass % of a pentasil-type zeolite, the content of the granulated catalyst A and the content of the granulated catalyst B in the catalyst being 90 to 99.9 mass % and 0.1 to 10 mass %, respectively, and the mass ratio (mass (on an Al2O3.3P2O5 basis) of phosphorus and aluminum derived from mono aluminum phosphate included in granulated catalyst A/mass of pentasil-type zeolite included in granulated catalyst B) of the mass (on an Al2O3.3P2O5 basis) of phosphorus and aluminum derived from mono aluminum phosphate included in the granulated catalyst A to the mass of the pentasil-type zeolite included in the granulated catalyst B being 0.015 to 3000.