Chemistry: Crude oil and fuels
- Created by: Bexxmay
- Created on: 04-04-14 16:23
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- Crude Oil and Fuels
- Fuels from crude oil
- Seperate a mixture of liquid by distillation
- Liquids called fractions
- mixture of many different compounds
- Most compounds in crude oil are hydrocarbons; Hydrogen and carbon
- Alkanes are saturated hydrocarbons
- Contain as many hydrogen atoms as possible in their molecules
- Seperate a mixture of liquid by distillation
- Fractional distillation
- Crude oil is seperated into fractions using fractional distillation
- The properties of each fraction depends on the size of they hydrocarbon molecule
- Fractions with lower boiling points are less viscous and burn more easily
- Burning Fuels
- Burning hydrocarbons in plenty of air produces carbon dioxide and water
- Burning hydrocarbons in a limited supply of air may produce carbon monoxide and solid particles
- Any sulfure compound in the fuel burn to produce sulfure dioxide
- Oxides of nitrogen can be formed when fuels burn under extreme conditions.
- Cleaner fuels
- Carbon dioxide from burning fuels causes Global Warming
- Sulfure dioxide and nitrogen oxxide cause acid rain
- Particles cause Global Dimming
- Pollutants can be removed from waste gases after the fuel is burned
- Alternative fuels
- Biodiesel can be made from vegetable oils
- Biofuels are renewable sources of energy that can be used instead of fossil fuels
- There are advantages and disadvantages for using biofuels
- Ethanol made from sugar is a biofuel
- hydroge is a potential fuel for the future
- Fuels from crude oil
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