The form adopted by the fractionation system in diesel and gasoline hydrogenation units
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The distillation system in diesel and gasoline hydrogenation units adopts a certain design; conventionally, it consists of a stripping tower plus a distillation tower, but there are also configurations that use a stripping tower plus a stabilizing tower. Which of these configurations results in lower energy consumption for the unit?
The stripper + stabilizer process is relatively more energy-efficient. .
So how is the feed temperature of that stripping tower increased?
The feed temperature of the stripping tower is usually increased through heat exchange using a heat exchanger; the heat from the tower top product or reflux may be employed to heat the feed. The feed may also be heated using a steam or hot oil system. .