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Crude Oil and Fuels
Descripción
GCSE Chemistry Mapa Mental sobre Crude Oil and Fuels, creado por Nuala Glasheen el 13/07/2015.
Sin etiquetas
chemistry
gcse
Mapa Mental por
Nuala Glasheen
, actualizado hace más de 1 año
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Creado por
Nuala Glasheen
hace casi 9 años
21
2
0
Resumen del Recurso
Crude Oil and Fuels
Crude Oil
Crude oil is a mixture of hydrocarbons.
These are separated into useful products, such as fuels, using a process called fractional distillation.
The demand for short hydrocarbon molecules is greater than their supply in crude oil, so a reaction called cracking is used.
Cracking converts long alkane molecules into shorter alkanes and alkenes, which are more useful.
unrefined petroleum derived from fossils in the ground
Hydrocarbon Fuels
Most fuels contain carbon and/or hydrogen
During combustion gasses are released into the atmosphere
Sulphur Dioxide, Carbon Dioxide and Carbon Minoxide
These do damage to our atmosphere
Global Warming
Biofuels, including biodiesel and ethanol, are produced from plant material.
There are economic, ethical and environmental issues surrounding their use.
Combustion - Burning something
Hydrocarbons
Alkanes
Carbons and hydrogens with only single bonds
In cracking these molecules are made into alkenes
Alkenes
Hydrogens and carbons with double bonds
Properties
Generally they have high boiling points
Highly Flammable
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