Carbon Adsorption – How Does It Work?
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September 30, 2009 | Category: Product Information
The use of carbon media for reduction and removal of odors and gases has been around since the turn of the century. For the most part carbon and charcoal are the same thing. Carbon used for adsorption of gases is normally expanded by using a combination of pressure and heat. This expanded carbon provides for a large surface area on each carbon granule allowing each granule to adsorb up to 100 times its weight in gases.
Carbon has a natural affinity to attract and retain a wide range ( hundreds of types) of organic and inorganic fumes and odors. As the gaseous molecule passes by the carbon it is adsorbed into the carbon media and retained until that carbon granule is saturated at which time the carbon will no longer adsorb any more ( like a sponge).
The life of the carbon (ability to adsorb) is based on a number of factors. The type of gas or odor, the molecular weight of the gas, volume of air and the concentration of the gas, usually measured in parts per million (ppm). While all of these variables are important in designing a carbon system the most important is the concentration in and the required reduction or concentration out.
If you want to reduce a continuous air flow containing 30 ppm of styrene monomer to 4 ppm at a volume of 500 cfm and you only want to change out the carbon once every month, you may require as much as 60 to 80 lbs of carbon. Remember, once the carbon is saturated it will release any additional gases back into the air stream.
Pure Air Systems offers a wide range of carbon adsorption systems and specially treated media for unique adsorption applications. We offer a line of combination prefilter/carbon media filters that can be used in-lieu of furnace filters for residential and commercial applications. In addition, all of our fan powered units, from our portable HPS series to our 2000 CFM units can be fitted with up to 80 lbs of carbon media and used in a wide variety of gas reduction/removal applications.
For more information on our complete line of carbon adsorption units and technology go to our website at: www.pureairsystems. com.
Post Tags: carbon carbon adsorption gas removal odor removal
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About the Author: Don Musilli
My name is Don Musilli. I started Pure Air Systems in 1985 and then sold it in 2006. I continue to consult for PAS and write their blog and control their Twitter account. I also, on occasion, make changes to the website. The company is now almost 26 years old and has been a major player in offering commercial grade, high performance HEPA and Carbon based filtration systems for the commercial, institutional, industrial and residential markets.
I currently reside in Englewood, Florida where I write blogs and do social media marketing for a number of clients.
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