Patent ID: 11891578
Assignee: RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 3:
4. The process according to claim 2, wherein conditions for the first catalytic cracking reaction include: a reaction temperature of about 500-600° C., a reaction time of about 0.05-5 seconds, a catalyst-to-oil weight ratio of about 1:1 to about 50:1, a water-to-oil weight ratio of about 0.03:1 to about 0.5:1, a catalyst density of about 20-100 kg/m3, a vapor velocity of about 4-18 m/s, a reaction pressure of about 130-450 kPa, and a catalyst mass flow rate Gs of about 180-500 kg/(m2·s); and
conditions for the second catalytic cracking reaction include: a reaction temperature of about 510-650° C., a reaction time of about 1-20 seconds, a catalyst-to-oil weight ratio of about 3:1 to about 50:1, a water-to-oil weight ratio of about 0.03:1 to about 0.8:1, a catalyst density of about 120-290 kg/m3, a vapor velocity of about 0.8-2.5 m/s, a reaction pressure of about 130-450 kPa, and a catalyst mass flow rate Gs of about 15-150 kg/(m2·s).