Relationship between circulating hydrogen volume and reaction temperature
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In hydrogenation units, with all other conditions remaining unchanged, an increase in reaction temperature leads to a greater degree of reaction, which results in higher hydrogen consumption. However, the amount of hydrogen circulated also increases. Could this be because the amount of hydrogen sulfide and ammonia produced is greater than the amount of hydrogen consumed?
Without a clear description, communication is impossible; it is necessary to explain the chemical equations and the process flow in detail
In your case, it's correct for the hydrogen mixing ratio to increase. If the operating pressure remains unchanged, the hydrogen circulation rate should also remain unchanged.
The molecular weight of the cyclic hydrogen has changed, so the amount of cyclic hydrogen calculated by the measuring element is increased.