Crude oil Flashcards
how does crude oil get separated in fractional distillation
heated crude oil enters a tall fractionating column which is hot at the bottom and gets cooler towards the top vapours
from the oil rise through the column
vapours condense when they become cool enough liquids are led out of the column at different heights
What is crude oil?
Crude oil is made of organisms that lived and died millions of years ago – mainly plankton that was buried in mud. It is a complex mixture of hydrocarbons close hydrocarbonA compound that contains hydrogen and carbon only. . The carbon atoms are joined together in chains and rings.
what is complete combustion?
Complete combustion of a hydrocarbon fuel happens when there is a good supply of air. Carbon and hydrogen atoms in the fuel react with oxygen in an exothermic reaction:
carbon dioxide and water is produced
the maximum amount of energy is given out
In a Bunsen burner, this occurs when the air hole is fully open.
What is incomplete combustion?
Incomplete combustion happens when the supply of air or oxygen is poor. Water is still produced, but carbon monoxide and carbon are produced. Less energy is released during complete combustion.
In a Bunsen burner, incomplete combustion occurs when the air hole is closed.
