What exactly is ACTIVATED CARBON?
Activated carbon (also known as activated charcoal, activated coal or active carbon) is certainly a useful adsorbent. This can high surface area, pore structure (micro, meso and macro), and high degree of surface reactivity, activated carbon may be used to purify, dechlorinate, deodorize and decolorize both liquid and vapor applications. Moreover, activated carbons are economical adsorbents for several industries such as water purification, food grade products, cosmetology, automotive applications, industrial gas purification, petroleum and rare metal recovery mainly for gold. The bottom materials for activated carbons are coconut shell, coal or wood.
Putting on ACTIVATED CARBON
Several types of activated carbon are suited for various specialized applications.
Granulated activated carbon
Pelletized activated carbon
Powdered activated carbon
Impregnated activated carbon
Catalytic activated carbon
Each grade and size activated carbon is application specific. Choosing correct activated carbon product and mesh size is determined by the application form and contaminants you want to get rid of.
Typical applications are:
Removing chemical toxins for example Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and removing waste gases
Impregnated activated carbon used as a bacteria inhibitor in normal water filters
Elimination of taste and odor causing compounds such as MIB and geosmin
Recovery of gold
Removal of chlorine and chloramine
Designing a suitable activated carbon filtration with sufficient contact time, pressure drop, and vessel size is important. Also, activated carbon’s physical and chemical characteristics play a crucial role in removing contaminants effectively. Therefore, material testing is essential and ASTM test methods for example butane activity, area, density, and water content (moisture) can be accomplished for the greatest suitable material on your application.
TYPES OF ACTIVATED CARBON
Coconut shell-based activated carbon
Ab muscles large internal surface areas seen as a microporosity along with high hardness and low dust make these coconut shell carbons particularly attractive for water and important air applications in addition to point-of-use water filters and respirators
Extremely high floor seen as an the great majority of micropores
High hardness with low dust generation
Excellent purity, generally products exhibiting at most 3-5% ash content.
Renewable and green raw material.
Coal-based activated carbon
It makes different performance characteristics in industrial applications typically catered to with coal or coconut products.
Wood based activated carbon features a high floor seen as both mesopores and micropores and contains excellent decolorizing properties because of its signature porosimetry
Catalytic based activated carbon
Catalytic carbon is often a class of activated carbon employed to remove chloramines and hydrogen sulfide from mineral water.
It’s got each of the adsorptive characteristics of conventional activated carbons, plus the ability to promote chemical reactions.
Catalytic carbon just isn’t impregnated with caustic chemicals
Because catalytic carbons haven’t any impregnates, you won’t worry about reduced organic odor capacity or perhaps the higher bed fire potential with the impregnated carbons.
Catalytic carbon is created by altering the counter structure of activated carbon. It is modified by gas processing at high temperatures to switch the electronic structure and make the very best a higher level catalytic activity on carbon for reducing chloramine and H2S in water. This added catalytic functionality is a lot more than that present in traditional activated carbons. Catalytic carbon is surely an economical means to fix treat H2S levels up to Twenty or thirty ppm. Catalytic carbon converts adsorbed H2S into sulfuric acid and sulfurous acid which are water soluble, so carbon systems might be regenerated with water washing to revive H2S capacity for less frequent physical change-outs.
Relatively low density
Renewable source of raw material
Impregnated Activated Carbon
Surface impregnation chemically modifies activated carbon through a fine distribution of chemicals and metal particles around the internal surfaces of the company’s pores. This greatly enhances the carbon’s adsorptive capacity through a synergism between the chemicals as well as the carbon. And gives a cost-effective way to remove impurities from gas streams which could otherwise not be possible.
Water treatment
For the antimicrobial/antiseptic properties, silver-impregnated carbon is an efficient adsorbent for purification in earth-bound domestic and other water systems.
Gas purification
Impregnated activated carbon can be used to treat flue gases in coal-fired generation plants and also other smog control applications. Carbon can be specifically impregnated for eliminating acid gases, ammonia and amines, aldehydes, radio-active iodine, mercury and inorganic gases including arsine and phosphine. Carbon impregnated with metal-oxide targets inorganic gases including HCN, H2S, phosphine and arsine.
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