Petroleum hydrocarbon catalytic cracking process of producing diesel oil and high-octane number gasoline

Application Number: 00102723
Application Date: 2000.02.22
Publication Number: 1310222
Publication Date: 2001.08.29
Priority Information:
International: C10G35/04
Applicant(s) Name: China Petrochemical Group Corp.
Inventor(s) Name: Wang Yamin;Cui Hua;Zhong Xiaoxiang
Patent Agency Code: 11034
Patent Agent: deng yi
Abstract In the catalytic cracking process, riser reactor is divided into three parts of heavy oil cracking area, middle fraction cracking area and small molecule cracking area with material feeding nozzle from bottom to top. The hydrocarbon material is made to enter to different cracking area based on its physical and chemical properties and contact with the molecular sieve catalyst containing alkali earth metal. The reaction is performed for 1-6 sec in the conditions of 480-550 deg.c temperature, 130-350 KPa pressure and catalyst-to-oil ratio of 4-15. The reacted catalyst is stripped and regenerated for circular use. The present invention has powerful heavy oil cracking capacity, diesel oil yield up to 35 wt%, gasoline yield up to 25-40 wt% and RON higher than 90 or equal to 90.