Refining: From Crude Oil To Petroleum Merchandise
Various kinds of crude air oil pumps oilOil that has not been refined. look totally different: some are black and viscous, others are brown and fluid. However none of them can be used as is in car engines, boilers or manufacturing units. They first need to be converted into varied finished products by refining All industrial processes used to obtain varied petroleum merchandise, resembling gasoline, gasoline, heating oil and asphalt, from crude oil. (See Close-Up: “Why Crude Oil Must be Refined”).
Everyone seems to be aware of the names of most of those products: gasoline (referred to as petrol in some international locations) and dieselDiesel is the identify of an inner combustion engine that works by compression-ignition… are fuels for cars and trucks; jet fuelFuel is any solid, liquid or gaseous substance or material that can be combined with an oxidant… powers aircraft; liquefied petroleum gasoline (LPG)Combination of mild hydrocarbons produced partly from the refining of crude oil (about 40%) and partly from the processing of pure gas.. , also known as butane and propane, is an automotive gas or is packaged in bottles and used for household wants; fuel oil is used in home and industrial boilers; base oils are used to produce lubricants; and asphaltAt ambient temperature, a sticky, black and highly viscous or stable mixture of heavy hydrocarbons… (or bitumen) is used to pave roads. There can be naphtha, which is the air oil pumps principle feedstock for petrochemicals (See Characteristic Report: “Petrochimicals and Plastics”).
Crude oil is converted into petroleum merchandise in plenty of steps in refineries (See Close-Up: “The Three Stages of Refining”). The primary is atmospheric distillation at 350 to 400°C. The crude oil vapors rise contained in the column, while the heaviest molecules remain at the bottom. The heavy residues are distilled once more in one other column.
After separation, the following step is conversion at a temperature of 500°C. Processes embody catalytic cracking and hydrocrackingRefining process that converts heavy hydrocarbons into lighter, low-sulfur products within the presence of hydrogen. , which “crack” the molecules which are nonetheless too heavy, producing fuel, gasoline and diesel. Then molecules which can be corrosive or cause air pollution, resembling sulfur, are removed.