Patent ID: 11964262
Assignee: RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 1:
2. The modified molecular sieve according to claim 1, wherein the ratio of (SiO2)/(Al2O3) is greater than 18 and less than 60, the content of phosphorus, calculated as P2O5, is 3-12 wt % based on the dry weight of the molecular sieve, the content of supported metal M1, calculated as the oxide of the supported metal M1, is 3-8 wt %, based on the dry weight of the molecular sieve, and the content of supported metal M2 is 0.5-3 wt %, calculated as the oxide of the supported metal M2, based on the dry weight of the molecular sieve, and the volume of mesopores in the molecular sieve represents 45-65% by volume of the total pore volume of the molecular sieve.