Residue hydrogenation unit: effect of reaction temperature, reaction pressure, and space velocity on conversion rate

In the residue hydrogenation unit, the reaction temperature, reaction pressure, and space velocity have a significant impact on the conversion rate. Increasing the reaction temperature usually increases the conversion rate, as more heavy components are broken down into lighter products. Increasing the reaction pressure also helps to improve the conversion rate, as it can enhance hydrogen solubility and reaction kinetics. A decrease in space velocity (i.e., an increase in reaction time) can also increase the conversion rate, as the residence time of the feedstock in the reactor is prolonged, allowing for more thorough contact with hydrogen. These factors also affect product distribution. For example, higher reaction temperatures and pressures generally promote the formation of more middle distillate oils, while lower space velocities facilitate the conversion of oils with higher molecular weights. Overall, the adjustment of operating conditions can be optimized according to the desired product distribution. .

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