Flue gas is the gas that exits to the atmosphere through a flue, a pipe or channel that carries exhaust gases from a fireplace, oven, furnace, boiler or steam generator, and the term often refers specifically to the exhaust gas of combustion at power plants. Combustion of fossil fuels is a common source of flue gas, which when burned with ordinary ambient air is composed largely of nitrogen, carbon dioxide and water vapor. Technology exists to remove pollutants from flue gas at power plants before it reaches the atmosphere.
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MaturityTRL 9: Actual System Proven in Operational Environment 1 Technology Type Sources
1. Wikipedia: Flue gas
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Flue gas is the gas exiting to the atmosphere via a flue, which is a pipe or channel for conveying exhaust gases, as from a fireplace, oven, furnace, boiler or steam generator.
Technology maturity, Wikipedia introduction extract fetched 2026-09-25
Combustion of fossil fuels is a common source of flue gas.
In Group: Scrubbers and Flue Gas Cleaning, Lead
Technology is available to remove pollutants from flue gas at power plants.
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