浸渍型催化剂在近代工业催化剂开发中的地位日益重要.根据反应的特点,可以对催化剂活性组分的分布提出特定的要求.目前在工艺上已有一些方法可制备活性组分符合不同分布规律的催化剂.如所谓的蛋壳型,蛋白型及蛋黄型. Maatman等首先提出了设计和控制浸渍参数以制备具有预期活性组分分布的催化剂的观点. The impregnation type catalyst plays an increasingly important role in the development of modern industrial catalysts.According to the characteristics of the reaction, specific requirements can be put on the distribution of the active components of the catalyst.At present, there are some methods in the process for preparing active components in accordance with different distribution rules Catalysts, such as the so-called egg shell type, protein type and egg yolk type. Maatman et al. First proposed the design and control of impregnation parameters to prepare a catalyst with the desired active ingredient distribution.