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Petroleum refinery in Anacortes, Washington, United States. Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.
Upstream regards exploration and extraction of crude oil, midstream encompasses transportation and storage of crude, and downstream concerns refining crude oil into various end products. Petroleum is vital to many industries, and is necessary for the maintenance of industrial civilization in its current configuration, making it a critical ...
In 2018 road transport used 49% of petroleum, aviation 8%, and uses other than energy 17%. [155] Electric vehicles are the main alternative for road transport and biojet for aviation. [156] [157] [158] Single-use plastics have a high carbon footprint and may pollute the sea, but as of 2022 the best alternatives are unclear. [159]
Petroleum engineering is a field of engineering concerned with the activities related to the production of hydrocarbons, which can be either crude oil or natural gas. [1] Exploration and production are deemed to fall within the upstream sector of the oil and gas industry.
The hot crude oil is then passed into a distillation column that allows the separation of the crude oil into different fractions depending on the difference in volatility. The pressure at the top is maintained at 1.2–1.5 atm [ 2 ] so that the distillation can be carried out at close to atmospheric pressure, and therefore it is known as the ...
The solid residue remaining from refinement of petroleum by the "cracking" process is also a form of coke. Petroleum coke has many uses besides being a fuel, such as the manufacture of dry cells and of electrolytic and welding electrodes. [citation needed] Gas works manufacturing syngas also produce coke as an end product, called gas house coke.
Petroleum products are materials derived from crude oil as it is processed in oil refineries. Unlike petrochemicals, which are a collection of well-defined usually pure organic compounds, petroleum products are complex mixtures. [1] Most petroleum is converted into petroleum products, which include several classes of fuels. [2]
Oil may be transferred by road or rail tanker or by pipeline to an oil refinery. Gas may be used on the site to run gas engines to produce electricity or can be piped to local users. [3] Excess gas is burned in a ground flare. Produced water may be re-injected into the reservoir. Small fields can use portable integrated packages, like vapor ...