Key Specifics Of Activated Carbon
Precisely what is ACTIVATED CARBON?
Activated carbon (also known as activated charcoal, activated coal or active carbon) is a very useful adsorbent. This can high area, pore structure (micro, meso and macro), and degree of surface reactivity, activated carbon enables you to purify, dechlorinate, deodorize and decolorize both liquid and vapor applications. Moreover, activated carbons are economical adsorbents for a lot of industries including water purification, food-grade products, cosmetology, automotive applications, industrial gas purification, petroleum and rare metal recovery mainly for gold. The beds base materials for activated carbons are coconut shell, coal or wood.
APPLICATION OF ACTIVATED CARBON
Various kinds 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 the correct activated carbon product and mesh size depends upon the application form and contaminants you intend to remove.
Typical applications are:
Removal of volatile organic compounds for example Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and eliminating waste gases
Impregnated activated carbon used as a bacteria inhibitor in mineral water filters
Eliminating taste and odor causing compounds such as MIB and geosmin
Recovery of gold
Eliminating chlorine and chloramine
Designing an appropriate activated carbon filtering with plenty contact time, pressure drop, and vessel dimension is important. Also, activated carbon’s physical and chemical characteristics play a huge role in removing contaminants effectively. Therefore, material testing is essential and ASTM test methods including butane activity, surface area, density, and water content (moisture) can be carried out for the greatest suitable material on your application.
Varieties of ACTIVATED CARBON
Coconut shell-based activated carbon
The very 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 demanding air applications along with point-of-use water filters and respirators
High area seen as a a large proportion of micropores
High hardness with low dust generation
Excellent purity, with many 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 catered to with coal or coconut products.
Wood based activated carbon has a high floor seen as both mesopores and micropores and has excellent decolorizing properties owing to its signature porosimetry
Catalytic based activated carbon
Catalytic carbon is a sounding activated carbon employed to remove chloramines and hydrogen sulfide from drinking water.
It’s got each of the adsorptive characteristics of conventional activated carbons, along with the power to promote chemical reactions.
Catalytic carbon is just not impregnated with caustic chemicals
Because catalytic carbons haven’t any impregnates, you won’t worry about reduced organic odor capacity or even the higher bed fire potential of the impregnated carbons.
Catalytic carbon is created by altering the outer lining structure of activated carbon. It can be modified by gas processing at high temperatures to switch the electronic structure and make the best level of catalytic activity on carbon for reducing chloramine and H2S in water. This added catalytic functionality is significantly more than that within traditional activated carbons. Catalytic carbon can be an economical means to fix treat H2S levels of up to 20 to 30 ppm. Catalytic carbon converts adsorbed H2S into sulfuric acid and sulfurous acid which can be water soluble, so carbon systems could be regenerated with water washing to restore H2S convenience of more uncommon physical change-outs.
Relatively low density
Renewable supply of raw material
Impregnated Activated Carbon
Surface impregnation chemically modifies activated carbon by having a fine distribution of chemicals and metal particles on the internal surfaces of their pores. This greatly improves the carbon’s adsorptive capacity by having a synergism involving the chemicals and the carbon. And offers a cost-effective method to remove impurities from gas streams which could otherwise stop possible.
Water treatment
For the antimicrobial/antiseptic properties, silver-impregnated carbon is an effective adsorbent for purification in earth-bound domestic along with other water systems.
Gas purification
Impregnated activated carbon is employed to deal with 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 like arsine and phosphine. Carbon impregnated with metal-oxide targets inorganic gases including HCN, H2S, phosphine and arsine.
To get more information about Pellet Activated Carbon For Industry Air Purification check this resource