reports a simpliﬁed representation of the separation of petroleum into the following six major fractions: volatile saturates, volatile aromatics, nonvolatile saturates, nonvolatile aromatics, resins and asphaltenes.
He also reports arbitrarily deﬁned physical boundaries for petroleum using carbon-number and boiling point.
Other atoms are also named based on the number of protons they carry.
Notice in the diagram that eight different isotopes of Carbon are illustrated.
Since protons and neutrons weigh about the same, the atomic mass of ordinary carbon is 6 6 = 12.
It is called "Carbon-12," which is abbreviated "C." The fact that the atom has six protons is what makes it carbon.
and it is estimated that the world consumes about 95 million barrels each day.
Concern over the depletion of the earth's finite reserves of oil, and the effect this would have on a society dependent on it, is a concept known as peak oil.
The presence of C in coal is probably produced de novo by radioactive decay of the uranium-thorium isotope series that is naturally found in rocks (and which is found in varying concentrations in different rocks, hence the variation in C dating. To understand this process we must first understand a little bit about the atoms themselves and how they get their names.Most carbon atoms have six positively charged protons and six uncharged neutrons.) is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface, which is commonly refined into various types of fuels.Components of petroleum are separated using a technique called fractional distillation.