Application of Oil Shale Molecular Sieve Catalyst: a Review

In the catalytic cracking reaction of oil shale, molecular sieve is a catalyst with wide application potential because of its good thermal stability and hydrothermal stability. In this paper, the research progress of molecular sieve catalysts and metal-supported molecular sieve catalysts in the field of catalytic pyrolysis of oil shale is reviewed, and the structural characteristics of commonly used molecular sieves and the influencing factors of molecular sieves on the pyrolysis products of oil shale are summarized. Then, it is proposed that molecular sieves loaded with corresponding transition metals, alkali and alkaline earth metals (AAEM) can further increase the oil yield and improve the composition of shale oil products. Finally, the future research direction of molecular sieve in catalytic pyrolysis of oil shale is put forward, including the preparation method of catalyst can be greener, the preparation of molecular sieve-loaded nanoparticles and molecular sieve catalysts that can be applied to in-situ exploitation of oil shale.