I have a question regarding cracking reactors!
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Hydrogenation and cracking reactions take place in the hydrocracking reactor; when the temperature rises excessively, secondary and tertiary cracking occur, releasing more heat. Isn’t the cracking reaction endothermic? Then why is heat still continuously released?
The heat released is far greater than the heat absorbed, so the temperature still rises
The main reaction in hydrocracking is an exothermic reaction, resulting in a rise in temperature. Temperature can increase the depth of the reaction; as the temperature rises, the reaction speeds up. It must be releasing heat. Only some are endothermic reactions; the majority are exothermic reactions.