Issues with mass conservation in experiments? ?
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Hello everyone. I am currently studying the kinetics of the hydrogenation reaction of isobutyraldehyde. After isobutyraldehyde is vaporized, it reacts with hydrogen in the reactor; the resulting isobutanol condenses, and its conversion rate is measured. The condenser uses 5°C circulating water. The problem now is that with a tubular reactor, material conservation works well, with errors within 3%. However, when using a reactor without a gradient, with the same space velocity and the same condenser, there is a significant difference between the materials entering and leaving the reactor; as a result, the conversion rate measured is not accurate. What could be the reason? Do anyone have any good suggestions? Thank you all:victory:
Check for any accumulation or leakage inside the gradient-free reactor
Reply to 2# zhangzengliang: Thank you for your reply. I think the reason lies here as well. But one thing is unclear: the volume inside the reactor is limited, and since the catalyst’s activity remains high, it indicates that the catalyst frame has not been affected. I have now fed a total of about 400 grams, which is quite a lot. When should the material balance for a gradient-free reactor be calculated, after how much feed has been added? The reactor is of the BSD-2A type manufactured by Shandong Weihai Chemical.