The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2015
Filed:
Jun. 10, 2010
Xionghou Gao, Beijing, CN;
Shuhong Sun, Beijing, CN;
Lin Wang, Beijing, CN;
Xinmei Pang, Beijing, CN;
Zhifeng Wang, Beijing, CN;
Yongfu Gao, Beijing, CN;
Zhaoyong Liu, Beijing, CN;
Conghua Liu, Beijing, CN;
Jinsen Gao, Beijing, CN;
Gang Wang, Beijing, CN;
Yanhui Zhang, Beijing, CN;
Tao Liu, Beijing, CN;
Juanjuan Liu, Beijing, CN;
Xionghou Gao, Beijing, CN;
Shuhong Sun, Beijing, CN;
Lin Wang, Beijing, CN;
Xinmei Pang, Beijing, CN;
Zhifeng Wang, Beijing, CN;
Yongfu Gao, Beijing, CN;
Zhaoyong Liu, Beijing, CN;
Conghua Liu, Beijing, CN;
Jinsen Gao, Beijing, CN;
Gang Wang, Beijing, CN;
Yanhui Zhang, Beijing, CN;
Tao Liu, Beijing, CN;
Juanjuan Liu, Beijing, CN;
PETROCHINA COMPANY LIMITED, , CN;
Abstract
The invention relates to a catalytic cracking process for reducing sulfur content in gasoline and the device thereof, which includes a fluidized bed reactor in addition of a heavy oil catalytic cracking riser, characterized in enhancing contact time of oil-gas with the catalyst, further desulfurizing and reducing olefin content and increasing octane number in gasoline; regenerating all recycling catalysts, quality of products being stable and easily operated, reducing sulfur of gasoline to a maximum limit; adding a cooling device so as to avoid coking when the catalyst contacts with oil-gas in high temperature and decrease of yield of light oil resulted by excessively high reaction temperature of gasoline upgrading, improving products distribution, being flexible to change catalyst-oil ratio and reaction temperature of catalytic cracking reaction. The invention also provides an easily operated process for FCC desulfurization with stronger desulfurizing ability, good selectivity of products and high light oil yield, which can realize 40-80% of FCC gasoline desulfurization. Furthermore, more than 80% of FCC gasoline desulfurization can be achieved if the process is applied in combination with some particular catalysts.