Distillation is one of the most popular separation technique of separating chemical substances depending on differences in their volatilities in a boiling liquid mixture. It is a process in which a mixture of liquid or vapour with two or more substances is separated into its desired purity component fractions by the application and removal of heat. It is usually a part of a larger chemical process and hence also referred to as a unit operation.

S2 Engineering (S2) design, manufacture, assemble, install and commission distillation column's as part of their turnkey process equipment solution supply.

S2's distillation columns are widely used in various industrial applications, especially in gas plants, to make the process of distillation more efficient. Distillation columns are specially designed columns in the shape of a tall metal cylinder internally fitted with perforated horizontal plates to achieve this separation efficiently.