Petroleum Thick dark brown or greenish liquid It‘s name comes from Latin petr – rock and oleum – oil Sometimes we called it black gold Petrol exists in the upper strata of some areas of the Earth‘s crust
Origin of petrol It‘s formed from decayed prehistoric animals and plants. Over many centuries this organic matter, mixed with mud, is buried under thick sedimentary layers of material.
Composition Petroleum consists of hydrocarbons Non-hyrocarbon fractions – which might also include sulphur, nitrogen, oxygen Traces of metals – vanadium, nickel,…. Mineral additions – water, sand, salts
Treatment of petroleum I Petroleum is processed by atmospheric pressure distillation: Gasseous products – methan, ethan, propan, butan Petrol ether (solvent, engine fuel) Light and heavy petrol ( automobile fuel)
Top petroleum-producing countries (Ordered by amount (barrels per day) produced in 2004) Saudi Arabia Russia United States Iran Mexico China Norway Canada Venezuela United Arab Emirates Kuwait Nigeria United Kingdom Iraq