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报道了利用稳态对向扩散法测定几种硅胶小球载体、浸渍法制备的Bi_2O_3-MoO_3-P_2O_5/SiO_2流化床反应器用丁烯氧化脱氢催化剂和喷雾干燥制备的七组分Mo-Bi-Fe系氧化物流化床用丙烯氨氧化催化剂的原制备小孔有效扩散系数D_(ie)的结果。根据两元孔模型提出了简化的计算式和处理数据方法,讨论了此简化式的应用范围及通用修正方法,特别是针对曲节系数τ_i值问题进行了讨论。此外对所得的新鲜催化剂,生产使用过程中失活、再生处理、水蒸气处理,不同活性组分浸渍量和由浸渍与喷雾等不同方法得到的催化剂的D_(ie)和τ_i进行了初步的讨论。
Reported the use of steady-state counter-diffusion method for the determination of several silica gel carrier, impregnation prepared Bi_2O_3-MoO_3-P_2O_5 / SiO_2 fluidized bed reactor with a butene oxidation dehydrogenation catalyst and spray drying prepared seven components Mo-Bi -Fe series of oxide fluidized bed with propylene ammoxidation catalyst prepared pore effective diffusion coefficient D_ (ie) results. According to the two-hole model, a simplified calculation method and data processing method are proposed. The application scope of the simplified method and the universal correction method are discussed. Especially, the problem of the τ_i value of the knotty factor is discussed. In addition, a preliminary discussion was made on the fresh catalysts, inactivation, regeneration treatment, steam treatment, impregnation amount of different active components and catalysts obtained by different methods such as impregnation and spraying during the production and use of the catalyst .