raakaöljyä

Raakaöljyä, also known as crude oil, is a naturally occurring liquid mixture of hydrocarbons found in rock formations. It is a fossil fuel, meaning it was formed from the remains of ancient organisms over millions of years. The composition of crude oil varies significantly depending on its origin, influencing its properties and market value. It is typically black or brownish in color and can range from very fluid to a thick, viscous substance.

The extraction of crude oil involves drilling into underground reservoirs. Once extracted, it is transported to refineries, where it undergoes a complex process called fractional distillation. This process separates the crude oil into various components based on their boiling points. These components, known as fractions, include gasoline, diesel fuel, kerosene, jet fuel, heating oil, and lubricating oils. Petrochemicals, which are used to produce plastics, synthetic fibers, and other materials, are also derived from crude oil.

Crude oil is a vital commodity in the global economy, serving as the primary source of energy for transportation, industry, and heating. Its price is influenced by a multitude of factors, including supply and demand, geopolitical events, and speculation in financial markets. Concerns about its environmental impact, such as greenhouse gas emissions from its combustion and the risk of oil spills, have led to increased efforts to develop and utilize alternative energy sources.