Sulphur dioxide (SOx) emissions:
There are various techniques for reducing emissions of SO2 during the combustion of fuels used for generating electricity. These techniques are many and varied but include, inter alia:
• use of low sulphur fuels;
• in-furnace sulphur control via the injection of a sorbent, such as calcium oxide or calcium carbonate, during the combustion process;
• flue gas desulphurisation (FGD); and
• fuel gas desulphurisation.
Oxides of nitrogen emissions:
Like SO2, there are various techniques for reducing emissions of NOx during the combustion of fuels used for generating electricity. For example:
• advanced (dry) combustion systems;
• injection of DeNOx water;
• low NOx burners;
• flue gas recirculation;
• reburn;
• selective non-catalytic reduction (SNCR); and
• selective catalytic reduction (SCR).
Particulates Matters
Particulate emissions are generally controlled using one of two main techniques:
• electrostatic precipitators; or
• bag filters.
Particulate emissions are generally controlled using one of two main techniques:
• electrostatic precipitators; or
• bag filters.
