Distillation column and distillation tower refer to the same equipment, the distillation tower. A distillation column is a device used to separate a mixture of liquids by heating the liquid mixture and vaporizing it, then condensing and collecting the vapor to separate the different components.
Therefore, there is no substantial difference between distillation column and distillation tower, but different names are used in different contexts. Sometimes people prefer to use the term "column" to refer to a smaller distillation unit and the term "tower" to refer to a larger distillation unit, but this is not an absolute rule, the specific use depends on the Depending on the context and industry habits.
