May 2022

Heat Transfer

Preferential baffle reboiler—Part 2

Distillation towers consume ~30% of the energy in a refinery or petrochemical facility. The reboiler is the stomach of the distillation tower that consumes the energy to separate the components.

Sharma, A., Process Engineer

Distillation towers consume ~30% of the energy in a refinery or petrochemical facility. The reboiler is the stomach of the distillation tower that consumes the energy to separate the components. Any improvement in design or operational flexibility will save the energy and profitability of the plant. Two main types of reboilers are in use: a circulating (conventional) reboiler and a once-through reboiler. Part 1 of this article,1 which delivered a brief introduction of the preferential baffle reboiler and its working principle, was published in the April issue. If designed accurately, a preferential baffle reboiler (baffle with hole) or baffle with underflow can provide benefits; otherwise,

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