5426993
Descrição
Mapa Mental por Carmen Trinh, atualizado more than 1 year ago
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Criado por Carmen Trinh
mais de 8 anos atrás
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Reducing pollutants
- Catalytic converter
- Hot car engines produce bad
gasses such as Nitrogen
dioxide and Carbon Monoxide
- Then in the catalytic
converter they get
processed and come
out as Nitrogen and
Carbon Dioxide
- However Carbon dioxide
still adds to global
warming
- However Carbon dioxide
still adds to global
warming
- Then in the catalytic
converter they get
processed and come
out as Nitrogen and
Carbon Dioxide
- Only in expensive cars as is
made of raw metals
- Therefore it does help, but not very much as
there are more cheaper cars than there are
expensive cars
- Therefore it does help, but not very much as
there are more cheaper cars than there are
expensive cars
- 2CO + 2NO --> 2C02 + N2
- Hot car engines produce bad
gasses such as Nitrogen
dioxide and Carbon Monoxide
- Wet Scrubbing
- Used to remove sulpher
- We can remove sulphur
before we burn coal but that's
expensive
- So we use wet scrubbing
instead
- First water is added to get a
harmless sulphuric acid
- SO2 + 1/2 O2 + H20 --> H2SO3
- Then we can either add
Calcium Hydroxide or
Calcium Carbonate
- Calcium Hydroxide
- Sulphuric acid + Calcium Hydroxide --> Calcium Sulphate + Water
- H2S04 + Ca(OH)2 --> CaSO4 + H20
- H2S04 + Ca(OH)2 --> CaSO4 + H20
- Sulphuric acid + Calcium Hydroxide --> Calcium Sulphate + Water
- Calcium Carbonate
- Sulphuric acid + Calcium Carbonate --> Calcium Sulphate + Water + Carbon Dioxide
- H2SO4 + CaCO3 --> CaSO4 + H20 + CO2
- However it does produce CO2 which
adds to global warming
- H2SO4 + CaCO3 --> CaSO4 + H20 + CO2
- Sulphuric acid + Calcium Carbonate --> Calcium Sulphate + Water + Carbon Dioxide
- Both of these produce Calcium Sulphate (CaSO4) which can be used as plaster
- Calcium Hydroxide
- SO2 + 1/2 O2 + H20 --> H2SO3
- First water is added to get a
harmless sulphuric acid
- So we use wet scrubbing
instead
- We can remove sulphur
before we burn coal but that's
expensive
- Used to remove sulpher
- Electrostatic Precipitator
- Used to remove particulates (C)
- As particulates go up, they are
given a negative charge
- They carry on up, then becoming attracted
to positively charged plates
- Because of this, they drop into a
container which then disposes of them
- Because of this, they drop into a
container which then disposes of them
- They carry on up, then becoming attracted
to positively charged plates
- As particulates go up, they are
given a negative charge
- Usually found in chimneys
- The gasses still carry on out of the chimney
- Used to remove particulates (C)
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