basic geology(地质学基础,全英文),从网上收集整理的国外基础地质学比较全的学习资料,需要的快下!
Catlytic converter converts carbon monoxide, nitrous oxides and hydrocarbons into carbon dioxide, nitrogen and water.
• Recirculating exhaust gas along with a catlytic converter greatly reduces emissions.
Coal
Main problem is the sulfur dioxide it produces upon burning. Solutions:
• Burn only low sulfur coal.
• Wash coal to remove pyrite.
• Convert coal to gas (called Gasification)
• Fluidized Bed Combustion (or Limestone Injection): Mix coal with limestone, to form calcium sulfides or sulfates, which are prevent sulfur from forming sulfur dioxide.
• Scrubbing - slurries of lime or limestone.