How to reduce the problem of uneven gas distribution caused by uneven catalyst loading
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In a tubular methanol reactor, water or cold air flows inside the tubes, and syngas flows outside the tubes. However, there are often problems with biased flow in the bed and large plane temperature differences. The catalyst filling should be controlled as much as possible, but the catalyst filling cannot be guaranteed to be uniform. What methods can be used to reduce the impact of uneven catalyst filling?
It is difficult to measure pressure only during filling
A well-designed gas distributor should allow the distributor to have a certain pressure drop so that the gas can be redistributed evenly. Place a few more layers of small porcelain balls.
(1) The quality of the distributor is the key; (2) The quality of the catalyst loaded into each tube is completely consistent, thereby ensuring the same amount.
We also have a headache about this problem. We can only think of ways to deal with the distributor and loading, and look forward to a good solution.
Each tube is filled with catalyst to ensure consistent quality
The distributor design is reasonable, but due to the height of the bed, the bed far away from the distributor will have bias flow due to uneven catalyst loading.
Is there any good information on gas distributors?