WHAT IS ACTIVATED CARBON?
Activated carbon (also known as activated charcoal, activated coal or active carbon) is definitely a useful adsorbent. Due to their high floor, pore structure (micro, meso and macro), and also 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 most industries like water purification, food grade products, cosmetology, automotive applications, industrial gas purification, petroleum and platinum recovery mainly for gold. The base materials for activated carbons are coconut shell, coal or wood.
Using 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. Deciding on the correct activated carbon product and mesh size is determined by the application and contaminants you're planning to take out.
Typical applications are:
Eliminating chemical toxins for example Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and removing waste gases
Impregnated activated carbon utilized as a bacteria inhibitor in drinking water filters
Elimination of taste and odor causing compounds including MIB and geosmin
Recovery of gold
Elimination of chlorine and chloramine
Designing a proper activated carbon filtering with plenty of contact time, pressure drop, and vessel dimensions are important. Also, activated carbon’s physical and chemical characteristics play a vital role in removing contaminants effectively. Therefore, material tests are essential and ASTM test methods like butane activity, surface, density, and water content (moisture) can be accomplished to get the best suitable material to your application.
Kinds of ACTIVATED CARBON
Coconut shell-based activated carbon
The very large internal surface areas seen as an microporosity together with high hardness and occasional dust make these coconut shell carbons particularly attractive for water and critical air applications along with point-of-use water filters and respirators
Extremely high floor characterized by 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 focused on with coal or coconut products.
Wood based activated carbon carries a high surface seen as both mesopores and micropores and has excellent decolorizing properties because of its signature porosimetry
Catalytic based activated carbon
Catalytic carbon can be a sounding activated carbon used to remove chloramines and hydrogen sulfide from mineral water.
They have all the adsorptive characteristics of conventional activated carbons, along with the capacity to promote chemical reactions.
Catalytic carbon is just not impregnated with caustic chemicals
Because catalytic carbons don't have any impregnates, you won’t need to bother about reduced organic odor capacity or even the higher bed fire potential from the impregnated carbons.
Catalytic carbon is done by altering the counter structure of activated carbon. It really is modified by gas processing at high temperatures to improve the electronic structure and make the very best amount of catalytic activity on carbon for reducing chloramine and H2S in water. This added catalytic functionality is much greater than that present in traditional activated carbons. Catalytic carbon can be an economical solution to treat H2S levels of up to 20 to 30 ppm. Catalytic carbon converts adsorbed H2S into sulfuric acid and sulfurous acid that are water soluble, so carbon systems can be regenerated with water washing to restore H2S capacity for more uncommon physical change-outs.
Relatively low density
Renewable way to obtain raw material
Impregnated Activated Carbon
Surface impregnation chemically modifies activated carbon via a fine distribution of chemicals and metal particles for the internal surfaces of the company's pores. This greatly enhances the carbon’s adsorptive capacity through a synergism involving the chemicals and the carbon. And supplies a cost-effective approach to remove impurities from gas streams which would otherwise not be possible.
Water treatment
Due to its antimicrobial/antiseptic properties, silver-impregnated carbon is a great adsorbent for purification in earth-bound domestic along with other water systems.
Gas purification
Impregnated activated carbon can be used to treat flue gases in coal-fired generation plants along with other pollution control applications. Carbon might be specifically impregnated for removing acid gases, ammonia and amines, aldehydes, radio-active iodine, mercury and inorganic gases such as arsine and phosphine. Carbon impregnated with metal-oxide targets inorganic gases including HCN, H2S, phosphine and arsine.
To read more about Pellet Activated Carbon For Industry Air Purification explore this useful net page