China Petrochemical Corporation

Institute of Chemical Metallurgy Academia Sinica

Sinopec Beijing Design Institute (bdi)

Beijing Design Institute

Sinopec Beijing Design Institute

Qiye Yang

Hongyan Liu

Ziliang Liu

Zhouping Lai

Yulong Li

Mingli Gong

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

An arrangement of apparatus and process thereof for cooling hot fluid solid particles, especially hot regenerated catalytic particles are disclosed. The apparatus comprises a substantially vertical, cylindrical and close ended heat removal vessel through the shell sid passage of which is passed the fluid solid particles that flow downwardly in the form of dense phase fluidized bed, and one or more seperate heat exchange tube units through the tube side passage of which the coolant is passed and evaporized, each of said heat exchange tube units comprising a supply coolant inlet tube, a supply coolant collecting chamber, one or more heat exchange tubes, a vapour collecting chamber and a resulting vapour discharge tube, all of which constitute a close type coolant-to-vapour circulation. The apparatus and process of the present invention is particularly adequate to be utilized in combination with a catalyst regeneration operation in a fluid catalytic cracking operation of heavy residual oil feedstock for the conversion thereof into lighter and more valuable products. (FIG. 1)

Process for cooling fluid solid particles

An arrangement of apparatus and process thereof for cooling hot fluid solid particles, especially hot regenerated catalytic particles are disclosed. The apparatus comprises a substantially vertical, cylindrical and close ended heat removal vessel through the shell side passage of which is passed the fluid solid particles that flow downwardly in the form of dense phase fluidized bed, and one or more separate heat exchange tube units through the tube side passage of which the coolant is passed and vaporized, each of said heat exchange tube units comprising a supply coolant inlet tube, a supply coolant collecting chamber, one or more heat exchange tubes, a vapour collecting chamber and a resulting vapour discharge tube, all of which constitute a close type coolant-to-vapour circulation. The apparatus and process of the present invention is particularly adequate to be utilized in combination with a catalyst regeneration operation in a fluid catalytic cracking operation of heavy residual oil feedstock for the conversion thereof into lighter and more valuable products.

Apparatus and process for cooling fluid solid particles

Growing community of inventors

Beijing, China

Qiye Yang