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. 13, 2018
Filed:
Apr. 13, 2012
Xionghou Gao, Beijing, CN;
Haitao Zhang, Beijing, CN;
Hongchang Duan, Beijing, CN;
Di LI, Beijing, CN;
Xueli LI, Beijing, CN;
Zhengguo Tan, Beijing, CN;
Xiaoliang Huang, Beijing, CN;
Jinjun Cai, Beijing, CN;
Yunfeng Zheng, Beijing, CN;
Chenxi Zhang, Beijing, CN;
Gengzhen Cao, Beijing, CN;
Xionghou Gao, Beijing, CN;
Haitao Zhang, Beijing, CN;
Hongchang Duan, Beijing, CN;
Di Li, Beijing, CN;
Xueli Li, Beijing, CN;
Zhengguo Tan, Beijing, CN;
Xiaoliang Huang, Beijing, CN;
Jinjun Cai, Beijing, CN;
Yunfeng Zheng, Beijing, CN;
Chenxi Zhang, Beijing, CN;
Gengzhen Cao, Beijing, CN;
PetroChina Company Limited, Beijing, CN;
Abstract
The present invention relates to a heavy oil catalytic cracking catalyst having a high yield of light oil and preparation methods thereof. The catalyst comprises 2 to 50% by weight of a magnesium-modified ultra-stable rare earth type Y molecular sieve, 0.5 to 30% by weight of one or more other molecular sieves, 0.5 to 70% by weight of clay, 1.0 to 65% by weight of high-temperature-resistant inorganic oxides, and 0.01 to 12.5% by weight of rare earth oxide. The magnesium-modified ultra-stable rare earth type Y molecular sieve is obtained by the following manner: the raw material, a NaY molecular sieve, is subjected to a rare earth exchange, a dispersing pre-exchange, a magnesium salt exchange modification, an ammonium salt exchange for sodium reduction, a second exchange and a second calcination. The catalyst provided in the present invention is characteristic in its high conversion capacity of heavy oil and a high yield of light oil.