石油催化裂化用稀土掺杂分子筛催化剂的研究进展

Research Progress of Rare Earth Doped Molecular Sieve Catalysts for Catalytic Cracking of Petroleum

摘要: 在石油催化裂化中，稀土元素掺杂的分子筛因具有优异的综合性能，被广泛地研究与应用。本文首先介绍了稀土掺杂分子筛的石油催化裂化剂的主要合成方法，以及稀土元素种类及含量对分子筛催化剂的研究进展，然后详细综述了掺杂的稀土元素对分子筛结构稳定性、催化氢转移反应、催化活性、抗中毒能力的影响。此外，无论从环境角度还是经济效益角度，在废分子筛中进行稀土元素的回收利用都有着重意义，本文对此也进行了研究现状的总结。

Abstract: In the catalytic cracking of petroleum, rare earth doped molecular sieves have been widely studied and applied due to their excellent comprehensive properties. In this paper, the main synthesis methods of rare earth-doped molecular sieves for petroleum catalytic cracking agents, and the research progress of rare earth elements and their content on molecular sieve catalysts are in-troduced. Then, the effects of doped rare earth elements on the stability, catalytic hydrogen transfer reaction, catalytic activity and anti-intoxication ability of the molecular sieves were reviewed in detail. In addition, the recycling of rare earth elements in waste molecular sieves is of great sig-nificance both from the perspective of environmental and economic benefits. This article also summarizes the research status of this topic.