Visit the page on air pollution control devices to learn the specifics on how flue gases are cleaned before being sent to the smokestack.Although dispersion of certain pollutants helps in some cases, this technique does not by any means solve the pollution problem of these power plants since these pollutants may cause problems downwind such as acid rain. Some smokestacks are comparable to the largest buildings in the world, such as that in Figure 1, which is about as tall as the Empire State Building. For the last 12+ years, we’ve quickly and efficiently met the combustion product and heating. When you need a reliable company to sweep and inspect your chimney, upgrade your fireplace, or put a stop to that chimney leak before the damage gets worse, Mr. Also, by building stacks higher than inversion layers the gas can be dispersed even more effectively. Broadway & Raleigh’s Top Choice for Chimney Care. This technique is to build the stack very high, because wind speeds are greater at high elevations, and the dispersion of the gases results in less gas remaining in a given area. Īlong with using these technologies, another technique is used which reduces harmful gases over a given area. Technologies such as wet and dry scrubbers, and electrostatic precipitators can remove up to 99% of certain pollutants. All of these are harmful and have various effects on the environment, so many methods are employed to rid of as much of these as possible before the gas is sent into the atmosphere. Some of these pollutants include nitrogen oxides (NOx), sulfur oxides (SOx), carbon dioxide, carbon monoxide and particulate matter. These flue gases originate in the boiler where the combustion occurs, and contain various pollutants depending on what kind of fuel is burned. These gases are called flue gas, and are emitted when hydrocarbon based fuels such as coal, oil or natural gas are burned. This height disperses pollutants over a wider area in order to minimize their impact. Ī smokestack, stack, or chimney is a tall vertical pipe or channel used by power plants to exhaust combustion gases into the air. The Inco Superstack in Sudbury, Ontario is 380 meters tall, note the train at the bottom for a sense of how high it is (click to enlarge).
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