What do fuels contain
Suffer impurities
What do sulfur impurities do during combustion
Reacts with oxygen to produce sulfur dioxide, then sulfur dioxide reacts with water in the air to produce sulfurous acid and sufuric acid (acid rain)
Sulfur dioxide
SO2
Sulfur trioxide
SO3
Sulfuric acid
H2SO4
Sulfurous acid
H2SO3
Major problems with acid rain
Decreases PH in the soil
This kills animals and pants
Corrodes metal and limestone and marble buildings and statues
How to reduce pollution caused by sulfur
Removing sulfer impurities from the fuel (starting at the core)
Flue-gas sulfur is action “acid scrubber”
Flue-gas de sulfurisation (acid scrubber)
Reduces sulfur dioxide emissions from coal
Where do Oxides of nitrogen come from
the high temperature inside the engine causes nitrogen and oxygen in thr atmosphere(air) to react. this produces oxides of nitrogen.
nitrogen story
1) nitrogen monoxide
2) nitrogen dioxide
nitrogen dioxide description
a brown gas that contribuits and contributes to photo chemical smog
this irritates respiratory conditions e.g asthema
Catalyst converter’s description
have a honey comb structure to increase surface area of the platinum and palladium transition metal catalyst
doesnt work untill its hot
