Calculation of chemical hydrogen consumption in hydrocracking
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The chemical hydrogen consumption in hydrocracking is currently mostly calculated using the formula 0.0249*(light oil yield + heavy oil yield) + 1.4684; however, with different types of catalysts and an increase in the production of jet fuel through hydrocracking, this formula no longer proves to be effective. What formula should be used to calculate it?
The amount of pure hydrogen contained in the new hydrogen can be obtained by subtracting the amount of pure hydrogen contained in the gas with low boiling points, and then converting this value to mass (with the density of pure hydrogen being 0.089 g/l), before dividing it by the amount of reaction feed
This is not chemical hydrogen consumption; this is the actual hydrogen consumption
Typical basic design documents specify the chemical hydrogen consumption, emitted hydrogen consumption, leaked hydrogen consumption, and dissolved hydrogen consumption; these values can be used, along with actual production data, to reverse-engineer and adjust the formula.
The guy upstairs is right; it’s included in the initial design~