Number of front and rear sections of the converter
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Is it better to have the same number of elements in the front and back sections of the VCM converter, or more elements in the front section and fewer in the back? What are the reasons or advantages for each approach?
Based on production experience, there should be more front-end and fewer back-end components. By putting most of the reactions in the foreground, the load on the background is reduced, which is beneficial for production.
There is likely an issue related to the space velocity limit; due to the reduction in the number of molecules during the reaction, the volumetric flow rate of the feed gas in the earlier reactors must be higher than that in the later reactors. To maintain a consistent space velocity, it is common to reduce the number of reactors in the latter stages. It’s just a theoretical analysis; I’m not sure if it’s reasonable.