Diesel fuel is a mixture of hydrocarbons obtained by distillation of crude oil. Important properties which are used to characterize diesel fuel include cetane number (or cetane index), fuel volatility, density, viscosity, low temperature operability properties, and sulfur content. Diesel fuel specifications differ for various fuel grades and in different countries.
Jet A-1 is the most widespread type of jet fuel globally for use in turbofan- and turboprop-powered commercial aircraft. Jet A-1 specification to meet the AFQRJOS Check List which embodies the requirements of the two main specifications Def Stan 91-091 (Issue 11) and ASTM D1655 (Latest Issue). It also meets the NATO F-35 specification.
Crude oil means a mixture of hydrocarbons that exists in liquid phase in natural underground reservoirs and remains liquid at atmospheric pressure after passing through surface separating facilities. A wide variety of crude oil from light, medium, heavy and bituminous crude which can produce petroleum products and by-products by distillation process.
The four alkanes — methane, ethane, butane, and propane. An alkane is a hydrocarbon where single bonds link together each atom. Hydrocarbons are chemical compounds made up exclusively of carbon and hydrogen atoms. Methane, ethane, butane, and propane. They are all colorless, odorless, and flammable gases. However, they all have different molecular structures and individual uses.