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:
Dec. 03, 2013
Filed:
Mar. 13, 2009
Youhao Xu, Beijing, CN;
Lishun Dai, Beijing, CN;
Zhigang Zhang, Beijing, CN;
Shouye Cui, Beijing, CN;
Jianhong Gong, Beijing, CN;
Chaogang Xie, Beijing, CN;
Jun Long, Beijing, CN;
Hong Nie, Beijing, CN;
Zhijian Da, Beijing, CN;
Jiushun Zhang, Beijing, CN;
Tao Liu, Beijing, CN;
Anguo Mao, Beijing, CN;
Youhao Xu, Beijing, CN;
Lishun Dai, Beijing, CN;
Zhigang Zhang, Beijing, CN;
Shouye Cui, Beijing, CN;
Jianhong Gong, Beijing, CN;
Chaogang Xie, Beijing, CN;
Jun Long, Beijing, CN;
Hong Nie, Beijing, CN;
Zhijian Da, Beijing, CN;
Jiushun Zhang, Beijing, CN;
Tao Liu, Beijing, CN;
Anguo Mao, Beijing, CN;
China Petroleum & Chemical Corporation, Beijing, CN;
Research Institute of Petroleum Processing, SINOPEC, Beijing, CN;
Abstract
A catalytic conversion process to convert inferior feedstock to high quality fuel oil and propylene is disclosed. Inferior feedstock is introduced into first and second reactor zone, wherein first step and second step reactions occur by contacting with catalytic conversion catalyst. Product vapors include fluid catalytic cracking gas oil (FGO) which is introduced into a hydrotreating unit and/or extraction unit to obtain hydrotreated FGO and/or extracted FGO. Hydrotreated FGO and/or extracted FGO returns to the first reactor zone and/or another catalytic cracking unit to obtain propylene and gasoline. The extracted oil of said FGO is rich in double ring aromatics and the raffinate of said FGO is rich in chain alkane and cycloalkane. More particularly, the invention utilizes petroleum oil resources efficiently for decreasing the yield of dry gas and coke significantly.