Kütuselisandid

Kütuselisandid are chemical additives that can be blended into fuels to enhance their performance or impart specific properties. They are commonly used in gasoline, diesel fuel, and aviation fuel, as well as in heating oils. The purpose of these additives varies widely, ranging from improving combustion efficiency to preventing corrosion and reducing emissions.

One common type of kütuselisandid is detergents. These additives help to keep fuel injectors and intake valves clean, preventing the buildup of deposits that can impair engine performance and fuel economy. Other additives include octane boosters, which increase the octane rating of gasoline, making it more resistant to knocking or pinging in high-compression engines. Anti-knock agents, such as tetraethyllead, were historically used for this purpose, though they have largely been phased out due to environmental concerns.

Lubricity improvers are another important category, particularly for diesel fuels. Modern ultra-low sulfur diesel fuels can have reduced lubricity, and these additives help to protect fuel injection pumps and injectors from wear. Antioxidants are also added to fuels to prevent degradation and the formation of sludge or gums during storage. Corrosion inhibitors are used to protect fuel system components from rust and other forms of corrosion.

The development and use of kütuselisandid are driven by factors such as increasingly stringent environmental regulations, the need for improved fuel efficiency, and the demand for longer-lasting and more reliable engines. Refiners carefully select and blend additives to meet specific fuel standards and customer requirements. The exact composition and purpose of kütuselisandid can be proprietary information held by fuel manufacturers.