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以前文献中报道的工作表明：钒降低了裂解催化剂的性能，它既促进不希望的付反应，又与佛石发生相互作用而减少了它的表面积及活性点的数目。本研究的目的是研究在不同载体及氧化态下钒的活性。研究表明：钒的活性与载体的类型密切相关。因此通过改变沸石裂解催化剂中结合剂的组份有可能减少机所引起的不希望的付反应。而且由钒所催化的付反应强烈地依赖于其氧化状态。氧化态钒比还原态钒具有更高的活性。这有助于解释为什么氢预处理改善了钒沾染的裂解催化剂的性能。
Previous work reported in the literature shows that vanadium reduces the performance of the pyrolysis catalyst, which promotes both unwanted side reactions and interaction with the Buddha stone, reducing its surface area and the number of active sites. The purpose of this study was to investigate the activity of vanadium in different supports and in oxidation state. Studies have shown that: vanadium activity and carrier type are closely related. Therefore, by changing the composition of the binder in the zeolite cracking catalyst, it is possible to reduce the undesirable side reactions caused by the machine. Moreover, the vanadium-catalysed side reaction strongly depends on its oxidation state. Vanadium oxide has a higher activity than reduced vanadium. This helps to explain why hydrogen pretreatment improves the performance of vanadium-contaminated lysis catalysts.