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Views: 5 Author: Jane Ching Publish Time: 2021-12-02 Origin: Site
What are the products of petroleum atmospheric distillation and vacuum distillation？
Distillation is a method of separating each substance in a crude oil mixture by using the difference in boiling point.
一. From the temperature at which atmospheric distillation begins (initial boiling point) to the fraction less than 200°C, it is gasoline fraction (also called light oil or naphtha fraction)
二. Atmospheric distillation 200~350℃ distillate is coal, diesel fraction (also called atmospheric gas oil, AGO)
三. Since crude oil has obvious splitting phenomenon starting from 350°C, fractions with a boiling point higher than 350°C need to be fractionated under reduced pressure. The boiling point of the distilled fraction under reduced pressure is then converted to the normal pressure boiling point.
1. The fraction whose boiling point is equivalent to 350~500℃ under normal pressure is the vacuum fraction (also called vacuum gas oil, VGO)
2. The boiling point is equivalent to the fraction greater than 500 ℃ under normal pressure as the residue fraction (VR)
