Research Progress of Deactivation Mechanism and Anti Deactivation Methods of RFCC Molecular Sieve Catalysts
Catalytic cracking is one of the most important refining processes in petrochemical industry.The highly active zeolite catalyst is the key to heavy oil catalytic cracking.However,the complex composition of heavy oil and the harsh reaction environment make zeolite catalysts prone to deactivation,which is not conducive to heavy oil conversion and product quality improvement.This article reviews the deactivation mechanism of zeolite catalysts in heavy oil catalytic cracking process,and elucidates the anti deactivation methods of molecular sieve catalysts,such as metal loading modification,structural regulation,size regulation,and additive use.
heavy oilcatalytic crackingzeolite molecular sievedeactivation
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