Air Pollution Control
- Created by: lovelyy
- Created on: 15-05-18 17:00
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- Air Pollution Controls
- General
- Montreal Protocol
- Reduce gases from anthropogenic sources
- Kyoto Protocol
- Reduce CFC emissions
- Clean Air Act
- Reduce coal burning
- Environmental Protection Act
- Limit emissions and regulate integrated contol measures
- Convention on Long-Range Trans-Boundary Air Pollutiom
- Control air pollution
- Reduce energy use
- Substituted fuels
- Hydro-treated crude oil removes HS so there are less particulates and gases
- Montreal Protocol
- Specific
- Sulphur Oxides
- Wet And Dry Flue-Gas Desulphurisation
- Alkaline sorbets added to flues to react with sulpher oxides
- Wet: slurry used and calcium sulphite and water produced
- Dry: Crushed sorbent and calcium sulphite and carbon dioxide formed
- Wet And Dry Flue-Gas Desulphurisation
- Nitrogen Oxides
- Low temp combustion to prevent oxidation of nitrous compounds to nitrogen oxides
- Staged burners to control air and fuel flow and prevent formation
- Catalytic converters reduce to nitrogen and oxygen
- Urea sprays: effluent gases convert to nitrogen and water
- Smoke
- Electrostatic Precipitators
- Particles pass between electrodes and are charged. They collect on the oppositely charged plate
- Cyclone Separators
- Arir is rotated quickly in a cylinde. At top of the cylinder, particles hit the side and fall to the bottom. Rotation radius redues at bottom, removing small particles
- Scrubbers
- Effluent gases put in contact with reagent to remove particulates
- Afterburners
- Burn off excess VOCs
- More efficient combustion
- Electrostatic Precipitators
- Methane
- Reduce landfill use
- Collect gas during fossil fuel exploration
- CFCs
- Alternative material
- HCFCs as refrigerants
- Alternative use
- Pump/trigger action sprays
- Alternative material
- Sulphur Oxides
- General
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