The reboiler increases the circulation rate and reduces the impact of temperature differences on the load of the heating furnace
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As the title suggests: Does anyone with actual operational data have information on whether increasing the circulation oil volume in the reboiler at the bottom of the distillation tower and reducing the temperature difference between the inlet and outlet of the heater will cause a change in the load on the reboiler, while keeping the thermal load on the distillation tower unchanged?
By reducing the temperature difference between the inlet and outlet of the furnace, do you mean the temperature difference across the various branches at the bottom of the distillation tower? Large circulation volume, faster flow rate! If the furnace load remains unchanged, the furnace outlet temperature will be low! Theoretically, if heat balance is maintained throughout the entire tower to achieve the same result, the furnace load will remain unchanged; in actual production, however, the load increases! My personal understanding!
It seems to be able to lower the initial boiling point of the components at the bottom of the tower, thereby narrowing the range of these components
Q=CM(T-T); CM is constant, so reducing the temperature difference means reducing the amount of heat absorbed
Which of the two methods – increasing the circulation oil volume to reduce the temperature difference between the inlet and outlet, or reducing the circulation oil volume to increase the temperature difference – results in lower energy consumption?