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:
Feb. 14, 2017
Filed:
Oct. 08, 2009
Yuichiro Fujiyama, Yokohama, JP;
Toshiaki Okuhara, Yokohama, JP;
Shigeko Okuhara, Fujisawa, JP;
Yuichiro Fujiyama, Yokohama, JP;
Toshiaki Okuhara, Yokohama, JP;
NIPPON OIL CORPORATION, Tokyo, JP;
Abstract
The fluid catalytic cracking process according to the present invention includes a first step of feeding a feedstock to a first fluid catalytic cracker, and catalytically cracking the feedstock in the first fluid catalytic cracker, so as to produce a fraction (LCO) having a boiling range of 221 to 343° C. and having a total aromatic content of 40 to 80 volume %; and a second step of feeding an oil to be processed containing the fraction to a second fluid catalytic cracker having a reaction zone, a separation zone, a stripping zone, and a regeneration zone, and catalytically cracking the oil in the reaction zone of the second fluid catalytic cracker, in the presence of a cracking catalyst, at an outlet temperature of the reaction zone of 550 to 750° C., a contact time between the oil and the catalyst of 0.1 to 1 second, and a catalyst/oil ratio of 20 to 40 wt/wt.