Fuels

11.3

What the syllabus asks of you

Name the fossil fuels: coal, natural gas and petroleum
Name methane as the main constituent of natural gas
State that hydrocarbons are compounds that contain hydrogen and carbon only
State that petroleum is a mixture of hydrocarbons
Describe the separation of petroleum into useful fractions by fractional distillation
Describe how the properties of fractions obtained from petroleum change from the bottom to the top of the fractionating column, limited to: (a) decreasing chain length (b) higher volatility (c) lower boiling points (d) lower viscosity
Name the uses of the fractions as: (a) refinery gas fraction for gas used in heating and cooking (b) gasoline / petrol fraction for fuel used in cars (c) naphtha fraction as a chemical feedstock (d) kerosene / paraffin fraction for jet fuel (e) diesel oil / gas oil fraction for fuel used in diesel engines (f) fuel oil fraction for fuel used in ships and home heating systems (g) lubricating oil fraction for lubricants, waxes and polishes (h) bitumen fraction for making roads

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Chapter 11: Fuels

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