The heavy oil obtained from the bottom of the atmospheric distillation tower is called atmospheric residue. It is black and viscous, semi-solid at room temperature. Its properties are related to the properties of crude oil. In petroleum refineries, residual oil is often used to process petroleum coke, residual lubricating oil, petroleum asphalt and other products, or as a cracking raw material. In petrochemical production, residual oil can be used to produce synthesis gas or hydrogen through partial oxidation, or as a raw material for cracking in regenerative furnaces to produce ethylene. Another important use of residual oil is as fuel oil.
#Atmospheric residual oil #Petroleum coke #Residual lubricating oil #Petroleum asphalt #Cracked raw material #Partial oxidation method #Synthetic gas #Hydrogen #Regenerative furnace cracking #Ethylene #Fuel oil