China Petrochemical Corporation

Institute of Chemical Metallurgy Academia Sinica

Sinopec Beijing Design Institute (bdi)

Mingli Gong

Qiye Yang

Yulong Li

Baolin Luo

Yihou Hu

Jiyu Hu

Kuiyuan Sun

Guoping Fang

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.

Dry regeneration-demetalization technique for catalyst for residuum

Growing community of inventors

Beijing, China

Mingli Gong