Fuels in DF

Burn completely in excess oxygen to produce water and carbon dioxide Very exothermic reaction Cycloalkanes, alkenes and alcohols also react similarly

The earth naturally emits infrared radiation into space Greenhouse gases absorb some of this

Carbon monoxide is formed CO is poisonous It binds to haemoglobin molecules instead of O causing internal suffocation Incomplete and complete combustion reactions are oxidation reactions

Contribute to photochemical smog Causes eye irritation and respiratory problems

Sulfur dioxide and NOx contribute to acid rain Destroys trees, vegetations, kills fish in lakes and corrodes buildings and statues

Very small articles of liquid suspended in air Causes cardiovascular and respiratory problems Solid particulates can also be formed e.g. carbon from burning fossil fuels

MOT emission tests Laws Taxes Behaviour - e.g. car sharing and encouraging public transport

Fermentation of sugar Carbon neutral as carbon dioxide is taken up during production but when burnt CO2 is released and during transportation Petrol engines must be modified

Refining renewable fats and oils Carbon neutral as carbon dioxide is taken up during production but when burnt CO2 is released and during transportation Petrol engines must be modified

Breakdown of organic waste matter Carbon neutral as carbon dioxide is taken up during production but when burnt CO2 is released and during transportation

Can be burned in a modified engine or used in a fuel cell Water is the only waste product Hydrogen can be obtained from seawater but it takes energy to extract it If the energy used comes from a renewable source the process can be called carbon neutral Transportation and storage - Hydrogen is very flammable and has to be liquified New infrastructure