What is the relationship between hydrogen consumption for hydrogenation and reaction pressure?
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By reducing the amount of reactant fed in while keeping the hydrogen volume constant, hydrogen consumption decreases – does the reaction pressure increase then?
The hydrogenation reaction is a reaction that results in a reduction in volume. By reducing the amount of reactant feed while keeping the amount of hydrogen unchanged, the concentration of hydrogen is effectively increased, which shifts the reaction toward its forward equilibrium state. As a result, the conversion rate of the reactants increases, and the consumption of hydrogen decreases
With the quantitative hydrogen and reactants, the pressure gradually decreases as the reaction proceeds. In a continuous reaction process, increasing the amount of hydrogen or reducing the amount of reactants is equivalent to increasing the hydrogen concentration or pressure, thereby improving the conversion rate of the reactants and reducing hydrogen consumption
So how does the reaction pressure change?
The pressure will increase; with the amount of hydrogen entering the device remaining unchanged, the hydrogen consumption decreases, and thus the pressure rises.