Regarding the calculation of the hydrogen-to-oil ratio
Thread Content
1. When calculating the hydrogen-to-oil ratio, are other components in the hydrogen included in the denominator? For example, if the molar flow rate of the recycled hydrogen is F and its purity is 90%, then does the remaining amount, F*10%, be included in the denominator used for calculating the hydrogen-to-oil ratio? 2. Is it necessary to calculate using the total amount of hydrogen entering the reaction system? That is, in addition to the recycled hydrogen, it is also necessary to consider the amount of pressurized hydrogen that goes to the regeneration section, as this hydrogen also enters the reaction system.
The hydrogen-to-oil ratio is the ratio of the volume of pure hydrogen at the reactor inlet to the volume of the feed oil; the remaining portion of the recycled hydrogen is not included in the denominator.
It is the ratio of the volume (molar amount) of pure hydrogen in the cyclic hydrogen to the volume (molar amount) of the feed oil; non-hydrogen components are not included in the denominator； The pressurized hydrogen entering the reaction system is also reflected in the amount of circulating hydrogen, so it does not need to be included as additional hydrogen.
Thank you all for your answers; we won’t discuss the definition. What concerns me is how to express it in a more practical way.