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Flue gas from London's Bankside Power Station, 1975. 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. It often refers to the exhaust gas of combustion at power plants. Technology is available to remove pollutants from ...
Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends, [1] or coal. According to the type of engine, it is discharged into the atmosphere through an exhaust pipe , flue gas stack , or propelling nozzle .
Typical monitored emissions include: sulfur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen chloride, airborne particulate matter, mercury, volatile organic compounds, and oxygen. CEM systems can also measure air flow, flue gas opacity and moisture. A monitoring system that measures particulate matter is referred to as a PEMS.
Because the flue gas volume is reduced, less heat is lost in the flue gas. The size of the flue gas treatment equipment can be reduced by 75%. The flue gas is primarily CO 2, suitable for sequestration. The concentration of pollutants in the flue gas is higher, making separation easier. Most of the flue gases are condensable; this makes ...
The carbon monoxide concentration in exhaust gases is closely related, and almost proportional to the air fuel ratio in the rich regions. It is, therefore, of great value when tuning an engine. Carbon dioxide emitted is theoretically directly proportional to the fuel consumed at a given and constant air fuel ratio.
Carbon and hydrogen are almost completely oxidized to carbon dioxide and ... to PM2.5 at a concentration of 880 ... that measurement of CO in flue gas ...
A new, emerging flue gas desulfurization technology has been described by the IAEA. [16] It is a radiation technology where an intense beam of electrons is fired into the flue gas at the same time as ammonia is added to the gas. The Chendu power plant in China started up such a flue gas desulfurization unit on a 100 MW scale in 1998.
First, an absorption column using piperazine as a solvent absorbs about half the carbon dioxide in the flue gas, then the use of a membrane results in 90% capture. [33] A parallel setup is also, with the membrane and absorption processes occurring simultaneously.