A multitude of separations are accomplished by distillation, but its most important and primary function in the refinery is its use for the separation of crude oil into component fractions.

Nevertheless, distillation has remained a major refinery process and a process to which just about every crude that enters the refinery is subjected.

The burning coke way of the furnace tube of the atmospheric distillation plant in small scale refinery was introduced. The views of attention in burning coke process were pointed out.