Issues with the intermediate reboiler in the distillation tower
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If the distillation efficiency of the catalytic unit in the distillation tower is guaranteed, what changes occur in operations when an intermediate reboiler is put into use?
The separation efficiency of the separation column is determined by the effect of the reboiler at the bottom of the column; what role does the reboiler in the middle play?
Installing a reboiler in the middle of the distillation column can reduce the load on the reboiler at the bottom of the column, thereby achieving energy savings. Generally, intermediate reboilers use the stabilized gasoline extracted from the stabilizer bottom as a heat source, thereby making effective use of low-grade thermal energy and contributing to energy savings and reduced consumption in the plant.
The old device also has a desorption boiling process, but the effect is not significant; it seems that siphoning isn’t possible
I think it is mainly for energy-saving reasons. Since the reboiler at the bottom of the tower is already in use, putting one in the middle section undoubtedly helps to supply more heat to the desorption tower, thereby reducing the heat source needed at the bottom of the tower. This is very beneficial for energy savings, the utilization of low-temperature heat, and the rational use of heat