Modern refineries produce light (D1), medium (D2) and heavy (D4 diesel distillates, each of which has a specific sulfur content. The specific standards for sulfur content were established by the federal Environmental Protection Agency (EPA ). many states have also established standards for the sulfur content in diesel fuel. Normally that D1 and D2 diesel fuel are available for road and commercial uses.
Distillation of the crude oil of specific fuel products is carried out by heating the crude oil at a given temperature. particular components of crude oil is boiled to produce gasoline, diesel and kerosene. Diesel fuel has a higher molecular weight than petrol and is expected to reach a point of 350 degrees centigrade boiling during the distillation process.
While gasoline requires the help of a combustion spark plug to create diesel fuel is combusted with compressed air. Therefore, the compression ratio of a diesel engine is two to three times higher than a petrol engine. Diesel engines are especially effective when the equipment is operated in a steady state. It is for this reason that diesel fuel is commonly used to power ships, trains and trucks. Diesel engines also produce lots of torque at low revs, which makes them ideal for powering heavy equipment. Although Rudolf Diesel demonstrated the first diesel engine in 1900, it was not until 1930 that the first diesel car trip took place. Mercedes Benz presented the first car that runs on commercial diesel fuel in 1936. For many years, diesel engines relied on a glow plug to heat enough air to ignite the fuel. Modern diesel fuel also contains chemical additives that allow diesel D2 to burn more efficiently and quickly ignite in cold weather. Rudolf Diesel originally experimented with coal dust and vegetable oil to feed its new engine.
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