dízelüzemanyag

Dízelüzemanyag, often referred to as diesel fuel, is a liquid fuel used in diesel engines. It is a complex mixture of hydrocarbons, typically derived from the fractional distillation of crude oil. The refining process separates crude oil into various components based on their boiling points, with diesel fuel being one of these fractions. Its composition can vary depending on the source crude oil and the refining methods employed.

Diesel fuel is characterized by its cetane number, which indicates its combustion quality and ease of ignition under compression. A higher cetane number generally leads to smoother engine operation and reduced knocking. It also has a higher energy density compared to gasoline, meaning it can store more energy per unit volume, contributing to the fuel efficiency of diesel engines.

The primary application of diesel fuel is in transportation, powering trucks, buses, trains, and ships. It is also widely used in agricultural machinery, construction equipment, and generators due to the efficiency and durability of diesel engines. Environmental concerns have led to the development of low-sulfur diesel fuels and alternative diesel fuels, such as biodiesel, to reduce emissions of pollutants like sulfur dioxide and particulate matter. The production and use of diesel fuel are subject to various regulations aimed at controlling air pollution and ensuring fuel quality.