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Showing posts from October, 2022

Cashing in Carbon Credits with Thermal Oxidizers and RTOs

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Increasingly, Companies are pledging to help stop climate change by reducing their own greenhouse-gas emissions as much as they can. With the current Biden Administration heavily pushing the agenda of climate change, the role of greenhouse gases are being taken very seriously. While the discussions are often emotionally charged and filled with rhetoric, a number ofcritical data points stand out. Human activities, including combustion of fossil fuels, do lead to the production, or emission, of excess carbon dioxide. Beyond the obvious environmental benefits , re-engineering a cleaner manufacturing process could lead to some economic and social gains destined to change our world for the better. Perhaps most significant from an economic vantage – In many places a voluntary private sector market has developed which facilitates the purchase and sale of "carbon credits." The concept is simple, if elegant. Carbon dioxide emitters, less kindly called polluters, may choose to compe

The Physics and Construction of Thermal Oxidizers and Afterburners

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The three most important components of a thermal oxidizer are a combustion chamber , a burner , and a blower to draw air through the incinerator. Air and fuel are continuously delivered to the incinerator along with the contaminant-laden gas stream, where the fuel is combusted. The products of combustion and the unreacted feed stream are mixed and enter the reaction zone of the unit. The pollutants in the process air are then reacted at elevated temperatures. The unit requires operating temperatures in the 1200-1600 o F range for combustion of most pollutants. RESIDENCE TIME The residence time of the system is dictated by the air velocity within the chamber, but generally retention times between 0.2 and 2.0 seconds are used. The average velocity of the gas can range between 10 fps and 50 fps. These high velocities are useful in preventing the particulates from settling down. The energy liberated by the reaction may be directly recovered in the process or indirectly recovered by u