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Mazut is a low-quality
heavy fuel oil Heavy Fuel Oil (HFO) is a category of fuel oils of a tar-like consistency. Also known as bunker fuel, or residual fuel oil, HFO is the result or remnant from the distillation and cracking process of petroleum. For this reason, HFO is contaminate ...
, used in
power plants A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many pow ...
and similar applications. In the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
and
Western Europe Western Europe is the western region of Europe. The region's countries and territories vary depending on context. The concept of "the West" appeared in Europe in juxtaposition to "the East" and originally applied to the ancient Mediterranean ...
, by using
FCC The Federal Communications Commission (FCC) is an independent agency of the United States federal government that regulates communications by radio, television, wire, satellite, and cable across the United States. The FCC maintains jurisdictio ...
or RFCC processes, mazut is blended or broken down, with the end product being
diesel Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engi ...
. Mazut may be used for heating houses in the former
USSR The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nati ...
and in countries of the
Far East The ''Far East'' was a European term to refer to the geographical regions that includes East and Southeast Asia as well as the Russian Far East to a lesser extent. South Asia is sometimes also included for economic and cultural reasons. The t ...
that do not have the facilities to blend or break it down into more conventional petro-chemicals. In the West, furnaces that burn mazut are commonly called "waste oil" heaters or "waste oil" furnaces. Mazut-100 is a
fuel oil Fuel oil is any of various fractions obtained from the distillation of petroleum (crude oil). Such oils include distillates (the lighter fractions) and residues (the heavier fractions). Fuel oils include heavy fuel oil, marine fuel oil (MFO), b ...
that is manufactured to
GOST GOST (russian: ГОСТ) refers to a set of international technical standards maintained by the ''Euro-Asian Council for Standardization, Metrology and Certification (EASC)'', a regional standards organization operating under the auspices of t ...
specifications, for example, GOST 10585-75 (not active) or GOST 10585-2013 (active as per December 2019). Mazut is almost exclusively manufactured in
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
,
Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbeki ...
,
Azerbaijan Azerbaijan (, ; az, Azərbaycan ), officially the Republic of Azerbaijan, , also sometimes officially called the Azerbaijan Republic is a transcontinental country located at the boundary of Eastern Europe and Western Asia. It is a part of th ...
, and
Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the s ...
. This product is typically used for larger boilers in producing steam, since the energy value is high. The most important factor when grading this fuel is the
sulfur Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formul ...
content, which can mostly be affected by the source feedstock. For shipment purposes, this product is considered a "dirty oil" product, and because
viscosity The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water. Viscosity quantifies the int ...
drastically affects whether it is able to be pumped, shipping has unique requirements. Mazut is much like No. 6 fuel oil (
Bunker C Fuel oil is any of various fractions obtained from the distillation of petroleum (crude oil). Such oils include distillates (the lighter fractions) and residues (the heavier fractions). Fuel oils include heavy fuel oil, marine fuel oil (MFO), bun ...
) and is part of the products left over after
gasoline Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organic c ...
and lighter components are evaporated from the crude oil.


Different types of Mazut-100

The main difference between the different types of Mazut-100 is the content of sulphur. The grades are represented by these sulfuric levels:Mazut
Page 54, CIR Staff Paper, Center for International Research (U.S.), Publisher: U.S.S.R. Input-Output Branch, Center for International Research, Bureau of the Census, U.S. Department of Commerce, 1984. * ”Very low sulphur” is mazut with a sulphur content of 0.5% * ”Low sulphur” is a mazut with a sulphur content of 0.5–1.0% * ”Normal sulphur” is a mazut with a sulphur content of 1.0–2.0% * ”High sulphur” is a mazut with a sulphur content of 2.0–3.5% Very-low-sulphur mazut is generally made from the lowest-sulfur crude feedstocks. It has a very limited volume to be exported because: * The number of producers in Russia is limited. Refineries that produce this are generally owned by the largest domestic oil companies, such as
Lukoil The PJSC Lukoil Oil Company ( stylized as LUKOIL or ЛУКОЙЛ in Cyrillic script) is a Russian multinational energy corporation headquartered in Moscow, specializing in the business of extraction, production, transport, and sale of petrol ...
and
Rosneft PJSC Rosneft Oil Company ( stylized as ROSNEFT) is a Russian integrated energy company headquartered in Moscow. Rosneft specializes in the exploration, extraction, production, refining, transport, and sale of petroleum, natural gas, and petro ...
, etc. * In Russia and the CIS countries a minimum of 50% from the total produced volume is sold only to domestic consumers in Russia and the CIS. * Most of the remainder amount is reserved by state quotas for state-controlled companies abroad. * The remaining volume available for export is sold according to state quotas, via state auctions, accessible only to Russian domestic companies. Low- to high-sulfur mazut is available from Russia and other CIS countries (Kazakhstan, Azerbaijan, Turkmenistan). The technical specifications are represented in the same way, according to the Russian GOST 10585-99. The Russian origin mazut demands higher prices.


References

{{Reflist Oils Petroleum products Petroleum in the Soviet Union