hydrocracking
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I read an article today that said, “Hydrocracking is generally a reaction that results in a reduction in volume, and increasing pressure facilitates the progress of the reaction.” I’m a bit confused as to why the volume decreases after cracking
Reaction characteristics: exothermic, hydrogen consumption, volume reduction, hydrogen consumption. . .
I understand heat release and hydrogen consumption, but I’m not quite sure about the reduction in volume. The mass remains unchanged before and after the reaction; the density decreases, so the volume should increase, right?
You can understand it from the reaction feed and discharge
Does what he said include the volume of hydrogen consumed in total?
It becomes easy to understand if H2 is taken into account :)
Within the normal operating temperature range, if no new hydrogen is introduced into the system, the system pressure will decrease, indicating that the hydrocracking reaction results in a reduction in volume overall, with the hydrogenation synthesis reaction playing a dominant role.