The importance of emission control has increased
sharply due to the increased need of energy from
combustion. However, biomass utilization in energy
production is not free from problems because of physical
and chemical characteristics which are substantially
different from conventional energy sources. In
this situation, the quantity and quality of emissions as
well as used renewable sources as wood or corn grain
are often unknown. To assess this problem the paper
addresses the objectives to quantify the amount of
greenhouse gases during the combustion of corn as
compared to the emissions in fossil combustion (natural
gas, LPG and diesel boiler).
The test was carried out in Friuli Venezia Giulia in
2006-2008 to determine the air pollution (CO, NO,
NO2, NOx, SO2 and CO2) from fuel combustion in
family boilers with a power between 20-30 kWt. The
flue gas emission was measured with a professional
semi-continuous multi-gas analyzer, (Vario plus industrial,
MRU air Neckarsulm-Obereisesheim).
Data showed a lower emission of fossil fuel compared
to corn in family boilers in reference to pollutants
in the flue gas (NOx, SO2 and CO). In a particular
way the biomass combustion makes a higher concentration
of carbon monoxide (for an incomplete
combustion because there is not a good mixing between
fuel and air) and nitrogen oxides (in relation at
a higher content of nitrogen in herbaceous biomass in
comparison to another fuel).
