Method for manual or automatic control of composition or quality of one of more products removed from head, involves determining new boiling temperature of product in region of product removal, from vapor pressure curve of product

摘要

The method involves determining the new boiling temperature of the product in the region of the product removal, from the vapor pressure curve of the product by changing the pressure in the column (1). The pressure and the temperature of the distillation removal are adjusted to the new boiling temperature by the modified coolant flowing through the heat-exchanger (2,17,18) in the counter direction. The distillation requires non-azeotropes mixtures, an alcohol mixture, of propanediol or industrial water or sea water.