Research Progress of Composite Molecular Sieve Catalysts in Hydrocracking
Molecular sieve catalyst is the core of hydrocracking,traditional molecular sieve catalyst has only a single property,cannot combine the advantages of strong acidity,hydrothermal stability and high catalytic activity,so the use of composite molecular sieve catalyst has been widely concerned by the industry.In this paper,the composite molecular sieves composed of micropores and mesoporous pores were introduced respectively.By combining a variety of molecular sieves with different pore structures and characteristics,the composite molecular sieves catalysts with excellent performance in hydrocracking reaction were prepared,and the development trend of hydrocracking catalysts was prospected.
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