Temperature rise in diesel hydrogenation reaction
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My feedstock for diesel hydrofining is a mixture of catalytic and coked oils. The reaction temperature is 325°C (the average temperature in the reactor), with a temperature rise of around 60°C. I would like to know which reactions are primarily responsible for this temperature rise?
Desulfurization, denitrification, olefin saturation, and aromatic saturation all release heat.
Olefin saturation and the removal of sulfur, nitrogen, and oxygen are all exothermic reactions; the temperature rise is mainly caused by the heat released during olefin saturation, as catalytic diesel and coker diesel contain high levels of olefins.