What is the impact of particle size and particle size distribution on fluidization?
Thread Content
The particle size and particle size distribution of the catalyst are important parameters of fresh catalysts. What impact do they have on the fluidization of the catalyst in the bed? It is generally believed that particle size and particle size distribution affect various behaviors related to catalyst fluidization, having a significant impact on factors such as the initial fluidization velocity, the viscosity of the bed, the size of bubbles, the rising speed of bubbles, as well as the diameter of particles and their settling velocity. In practical operations, how can these changes be observed through direct observations? From the density changes in the gas phase, what about the changes in the activity of the catalyst balance agents? If there are any other phenomena, please let us know.
The issue discussed by the original poster is quite profound; I’ll study it carefully and reply once I understand it better!
I’ve mentioned a bit about Lao Chen’s catalytic cracking processes and engineering; I only took a brief look at it. I still can’t! Hehe.
Regularly conducting particle size analysis and comparison of balance agents and fresheners is an important task in studying catalyst performance. I think making judgments based on intuitive observations in terms of operations is unnecessary; we should trust science!