WHAT IS ACTIVATED CARBON?
Activated carbon (also referred to as activated charcoal, activated coal or active carbon) is certainly a useful adsorbent. Because of their high floor, pore structure (micro, meso and macro), as well as amount of surface reactivity, activated carbon can be used to purify, dechlorinate, deodorize and decolorize both liquid and vapor applications. Moreover, activated carbons are economical adsorbents for several industries for example water purification, food grade products, cosmetology, automotive applications, industrial gas purification, petroleum and rare metal recovery mainly for gold. The camp materials for activated carbons are coconut shell, coal or wood.
Putting on ACTIVATED CARBON
Different types of activated carbon are designed for various specialized applications.
Granulated activated carbon
Pelletized activated carbon
Powdered activated carbon
Impregnated activated carbon
Catalytic activated carbon
Each grade and height and width of activated carbon is application specific. Choosing the correct activated carbon product and mesh size is determined by the applying and contaminants you intend to remove.
Typical applications are:
Elimination of chemical toxins like Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and removal of waste gases
Impregnated activated carbon used as a bacteria inhibitor in normal water filters
Removal of taste and odor causing compounds like MIB and geosmin
Recovery of gold
Eliminating chlorine and chloramine
Designing an appropriate activated carbon filtration system with plenty contact time, pressure drop, and vessel dimension is important. Also, activated carbon’s physical and chemical characteristics play an important 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 carried out for top level suitable material for the application.
Forms of ACTIVATED CARBON
Coconut shell-based activated carbon
Ab muscles large internal surface areas characterized by microporosity as well as high hardness and low dust make these coconut shell carbons particularly attractive for water and important air applications along with point-of-use water filters and respirators
Quite high area characterized by a large proportion of micropores
High hardness with low dust generation
Excellent purity, with a lot of products exhibiting a maximum of 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 area seen as an both mesopores and micropores and contains excellent decolorizing properties because of its signature porosimetry
Catalytic based activated carbon
Catalytic carbon is a form of activated carbon employed to remove chloramines and hydrogen sulfide from h2o.
It’s every one of the adsorptive characteristics of conventional activated carbons, plus the capacity to promote chemical reactions.
Catalytic carbon is not impregnated with caustic chemicals
Because catalytic carbons haven’t any impregnates, you won’t worry about reduced organic odor capacity or the higher bed fire potential from the impregnated carbons.
Catalytic carbon is produced by altering the outer lining structure of activated carbon. It really is modified by gas processing at high temperatures to change the electronic structure and create the very best level of catalytic activity on carbon for reducing chloramine and H2S in water. This added catalytic functionality is really a lot higher than that found in traditional activated carbons. Catalytic carbon can be an economical treatment for treat H2S levels as high as 20 or 30 ppm. Catalytic carbon converts adsorbed H2S into sulfuric acid and sulfurous acid which can be water soluble, so carbon systems can be regenerated with water washing to bring back H2S capacity for more uncommon physical change-outs.
Relatively low density
Renewable source of raw material
Impregnated Activated Carbon
Surface impregnation chemically modifies activated carbon by having a fine distribution of chemicals and metal particles about the internal surfaces of the company’s pores. This greatly enhances the carbon’s adsorptive capacity by having a synergism relating to the chemicals and also the carbon. And supplies a cost-effective way to remove impurities from gas streams which will otherwise ‘t be possible.
Water treatment
Due to its antimicrobial/antiseptic properties, silver-impregnated carbon is an excellent adsorbent for purification in earth-bound domestic as well as other water systems.
Gas purification
Impregnated activated carbon is used to treat flue gases in coal-fired generation plants and also other pollution control applications. Carbon could be specifically impregnated for eliminating acid gases, ammonia and amines, aldehydes, radio-active iodine, mercury and inorganic gases for example arsine and phosphine. Carbon impregnated with metal-oxide targets inorganic gases including HCN, H2S, phosphine and arsine.
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