Synthetic ammonia
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Could fluctuations in fresh hydrogen cause fluctuations in the makeup gas flow rate?
I’m not quite sure about this. If the hydrogen level is too low, the reaction doesn’t proceed well; increasing the circulation rate raises the pressure. The same thing happens if the hydrogen level is too high. Therefore, the amount of gas supplied is affected as well. Is that what you’re asking?
You’re probably asking about an instrument issue, right? Fluctuations in the hydrogen-to-nitrogen ratio can cause changes in gas density, which in turn affects the accuracy of measurements