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:
May. 16, 2000
Filed:
May. 06, 1998
Yihou Hu, Beijing, CN;
Baolin Luo, Beijing, CN;
Kuiyuan Sun, Beijing, CN;
Qiye Yang, Beijing, CN;
Mingli Gong, Beijing, CN;
Jiyu Hu, Beijing, CN;
Guoping Fang, Beijing, CN;
Yulong Li, Beijing, CN;
China Petro-Chemical Corporation, Beijing, CN;
Institute of Chemical Metallurgy Academia Sinica, Beijing, CN;
Sinopec Beijing Design Institute (BDI), Beijing, CN;
Abstract
This invention provides a novel dry chemical process for removing by carbonylation the metals harmful to the catalyst activity from the catalyst for the residuum and/or heavy oil catalytic cracking, comprising: contacting the catalyst contaminated by the poisonous metals with an activation gas and a reduction gas in a reactor for activation and reduction; and then in a carbonylation reactor, contacting the catalyst treated by activating and reducing with CO gas to make the metals on the catalyst carbonylated to form gaseous metal carbonyls which are then transferred and separated from the solid catalyst, thereby the catalyst activity is restored. The process of this invention is simple in the technology, moderate in the operation conditions, and it will not cause secondary pollution to environment for there is no addition and discharge of any liquid.