论文部分内容阅读
丙烷氧化脱氢制丙烯是有效利用低碳烷烃的一个重要催化过程。性能较好的VMgO催化剂引起了人们的兴趣和辩论。Kung等人认为活性相是正钒酸镁。Volta等人则认为焦钒酸镁是活性相,该相中稳定存在着与氧缺位形成有关的V~(4+)离子,而正钒酸镁不存在V~(4+)离子,有利于深度氧化。Del
Oxidative dehydrogenation of propane to propylene is an important catalytic process for the efficient use of lower alkanes. VMgO catalyst with better performance has aroused people’s interest and debate. Kung et al. Believe that the active phase is magnesium orthovanadate. Volta et al. Considered that magnesium pyrophosphate is the active phase, V ~ (4+) ions related to oxygen vacancy formation are stable in this phase, and there are no V ~ (4+) ions in magnesium orthovanadate. There are Conducive to the depth of oxidation. Del