Activated Carbon
PROCESS INVOLVED IN COCONUT SHELL ACTIVATED CARBON
Products
Activated Carbon is a manifestation of carbon that involves elaborate steps. The first step is to activate the charcoal by a deliberately controlled oxidation procedure to build up a permeable carbon structure. The so derived structure brings about a high level of porosity and over a wide scope of pore sizes, from noticeable splits and fissure to crevices and voids of sub-atomic measurements. The predefined structure of carbon provides it a vast surface zone which permits the carbon to adsorb an extensive variety of compounds. Activated carbon thus formed has the most elevated volume of adsorbing porosity of any material found on earth. The following grades are available in USS Mesh in commercial production.
Granular Activated Carbon
Granular activated carbon is made from raw organic material like coconut shells that are high in carbon. Heat in the absence of oxygen is used to activate the surface area of the carbon. The raw material is placed in a tank without oxygen and subjecting it to extremely high temperature of around 900 degrees Celsius. Afterwards the carbon is exposed to chemicals such as Argon and Nitrogen following which it is again placed in the tank and super heated to a temperature of 600 to 1200 degrees Celsius. Activated carbon so obtained is further crushed and sieved to obtain in granular form.
Activated charcoal is processed to have small, low volume pores that increase the surface area available for adsorption. The high degree of micro porosity and enhanced adsorption properties make it suitable for various domestic and industrial applications.The activated carbon made in particulate form as
powder has large surface to volume ratio with a small diffusion distance. Powdered activated carbon is made up of crushed or ground carbon particles passed through a designated mesh sieve. It is further pulverized to form powdered carbon.
Powder Activated Carbon
Particle Size Distribution
Granular Activated Carbon
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1/4 X 6 mesh (6.300 X 3.350 mm)
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3 X 6 mesh (6.700 X 3.350 mm)
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4 X 6 mesh/(4.75 X 3.350 mm)
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4 X 8 mesh/(4.750 X 2.36 mm)
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4 X 10 mesh (4.750 X 2.000 mm)
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6 X 12 mesh/(3.350 X 1.750 mm)
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8 X16 mesh/(2.360 X 1.180 mm)
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8 X 30 mesh/(2.360 X 0.600 mm)
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12 X 30 mesh (1.700 X 0.600 mm)
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12 X 40 mesh/(1.700 X 0.425 mm)
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20 X 50 mesh/(0.850 X 0.300 mm)
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20 X 70 mesh (0.850 X 0.212 mm)
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30 X 60 mesh (0.600 X 0.250 mm)
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30 X 70 mesh (0.600 X 0.212 mm)
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35 X 80 mesh (0.500 X 0.180 mm)
Powdered Activated Carbon
Technical Specification
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80 X 200 mesh (0.180 X 0.075 mm)
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80 X 325 mesh (0.180 X 0.045 mm)
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- 200USS Mesh ( 0.075 mm)
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-325USS Mesh (0.045 mm)
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