Crude oil refining and its processes (Petroleum Refining) is actually performing a series of physical and chemical changes on the input product of the refinery, which is crude oil, and converting it into output products or petroleum products. The purpose of crude oil refining is to convert the useless and unusable substance of crude oil into high-quality petroleum products that are in demand by the market and consumers. A petroleum refinery is a set of facilities and equipment that are related to each other and the process of refining They do crude oil. Refineries include different types based on the structure and production materials. Also, each refinery includes different departments, each of which is responsible for a specific task in order to produce and improve the quality of petroleum products. In an oil refinery, due to the sensitivity of the work and the need for knowledge and expertise, various engineers in the fields of mechanics, process , chemistry, oil, energy, electricity, computer, safety, etc.
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In general, refineries can be divided into the following three categories in terms of products: Fuel refineries. which are the most common type of refinery and their purpose is to produce common fuels such as gasoline, diesel, liquefied gas, kerosene, etc. Such as Tehran Refinery, Abadan Refinery, Arak Refinery and… oil refineries whose products are all kinds of light and heavy oils and lubricants, bitumen and… These products can produce oil separately or continue the operation of a fuel refinery. Famous refineries in this field include Pars Oil Refinery and Behran Oil Refinery.Petrochemical refineries. which, in addition to producing fuel products, produce raw materials for petrochemical units such as aromatics, ethylene, butadiene, etc. Among the famous refineries in this area, we can mention the Persian Gulf Star Refinery.
