Catalytic conversion process

US8696887B2 · kind B2 · utility

Assignee

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Youhao Xu · Beijing, CN
• Lishun Dai · Beijing, CN
• Longsheng Tian · Beijing, CN
• Shouye Cui · Beijing, CN
• Jianhong Gong · Beijing, CN
• Chaogang Xie · Beijing, CN
• Jiushun Zhang · Beijing, CN
• Jun Long · Beijing, CN
• Zhijian Da · Beijing, CN
• Hong Nie · Longbeilingcun, CN
• Jinbiao Guo · Katy, US
• Zhigang Zhang · Hunan, CN

Key dates

• Filing date: Aug 7, 2008
• Grant date: Apr 15, 2014
• Expiry date: Oct 11, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalytic conversion process which comprises catalytic cracking reaction of a hydrocarbon feedstock contacting with a medium pore size zeolite enriched catalyst in a reactor, characterized in that reaction temperature, weight hourly space velocity and catalyst/feedstock ratio by weight are sufficient to achieve a yield of fluid catalytic cracking gas oil between 12% and 60% by weight of said feedstock, wherein said weight hourly space velocity is between 25 h−1 and 100 h−1, said reaction temperature is between 450° C. and 600° C., and said catalyst/feedstock ratio by weight is between 1 and 30. This invention relates to a catalytic conversion process, especially for heavy feedstock oil to produce higher octane gasoline and an enhanced yield of propylene. More particularly, the invention relates to a process to utilize petroleum oil resources efficiently for decreasing the yield of dry gas and coke significantly.