atmospheric distillation tower的意思|示意

Atmospheric distillation tower is widely used in petroleum refining process. It separates the hydrocarbons in crude oil into different fractions such as gasoline, kerosene, gas oil and other heavier crude oil fractions.

Atmospheric distillation towers works by heating crude oil and introducing it at the bottom of the tower. As it rises up the tower, it passes through plates that allow different fractions of hydrocarbons to condense. These fractions are then separated and collected at different levels in the tower.

The hydrocarbons are separated by the boiling point of their constituent molecules. The lower the boiling point, the sooner the fraction will condense and be collected. This is why the heavy fractions of oil, such as gas oil and diesel, are collected at the bottom of the tower, while the lighter fractions, like naphtha and gasoline, are collected at the top.

Atmospheric distillation is the most common type of distillation used in the petroleum industry because it is relatively simple and efficient when compared to other types of distillation. It is also cost effective because it doesn't require the high temperatures and pressures that other types of distillation require.

Atmospheric distillation tower is an important part of the petroleum refining process and is essential for producing the various fractions of petroleum products.