Oilgae - Glossary

Flue gas - From Wikipedia, the free encyclopedia - Flue gas is gas that exits to the atmosphere via a flue, which is a pipe or channel for conveying exhaust gases from a fireplace, oven, furnace, boiler or steam generator. Quite often, it refers to the combustion exhaust gas produced at power plants. Its composition depends on what is being burned, but it will usually consist of mostly nitrogen (typically more than two-thirds) derived from the combustion air, carbon dioxide (CO2) and water vapor as well as excess oxygen (also derived from the combustion air). It further contains a small percentage of pollutants such as particulate matter, carbon monoxide, nitrogen oxides and sulfur oxides.

 Gases arising from the combustion of fuels, mainly consisting of carbon dioxide. Fuel gas normally contains pollutants, such as carbon dioxide, nitrogen oxide, sulfur dioxide, dust. - www.steag-statepower.com/spi/glossary.aspx

 Products of combustion plus excess air plus dilution air (on natural-draft appliances) that pass through the vent. - www.vagovic.com/glossary.html