What’s ACTIVATED CARBON?
Activated carbon (also known as activated charcoal, activated coal or active carbon) is certainly a useful adsorbent. Because of their high floor, pore structure (micro, meso and macro), and also level 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 a lot of industries for example water purification, food-grade products, cosmetology, automotive applications, industrial gas purification, petroleum and platinum recovery mainly for gold. The camp materials for activated carbons are coconut shell, coal or wood.
Using ACTIVATED CARBON
A variety of activated carbon are fitted to various specialized applications.
Granulated activated carbon
Pelletized activated carbon
Powdered activated carbon
Impregnated activated carbon
Catalytic activated carbon
Each grade and sized activated carbon is application specific. Choosing correct activated carbon product and mesh size depends upon the approval and contaminants you intend to get rid of.
Typical applications are:
Removing volatile organic compounds including Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and elimination of waste gases
Impregnated activated carbon utilized as a bacteria inhibitor in h2o filters
Eliminating taste and odor causing compounds such as MIB and geosmin
Recovery of gold
Eliminating chlorine and chloramine
Designing a suitable activated carbon filtering system with sufficient contact time, pressure drop, and vessel sizing is important. Also, activated carbon’s physical and chemical characteristics play a huge role in removing contaminants effectively. Therefore, material exams are essential and ASTM test methods including butane activity, area, density, and water content (moisture) can be done for top level suitable material to your application.
Forms of ACTIVATED CARBON
Coconut shell-based activated carbon
The very large internal surface areas seen as a microporosity together with high hardness and occasional dust make these coconut shell carbons particularly attractive for water and demanding air applications and also point-of-use water filters and respirators
High area seen as an the great majority of micropores
High hardness with low dust generation
Excellent purity, with most products exhibiting at most 3-5% ash content.
Renewable and green raw material.
Coal-based activated carbon
It produces 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 it has excellent decolorizing properties because of its signature porosimetry
Catalytic based activated carbon
Catalytic carbon is often a form of activated carbon utilized to remove chloramines and hydrogen sulfide from mineral water.
They have every one of the adsorptive characteristics of conventional activated carbons, along with the capacity to promote chemical reactions.
Catalytic carbon isn’t impregnated with caustic chemicals
Because catalytic carbons don’t have any impregnates, you won’t need to panic about reduced organic odor capacity or the higher bed fire potential in the impregnated carbons.
Catalytic carbon is created by altering the counter structure of activated carbon. It can be modified by gas processing at high temperatures to alter the electronic structure that will create the highest degree of catalytic activity on carbon for reducing chloramine and H2S in water. This added catalytic functionality is much more than that within traditional activated carbons. Catalytic carbon is an economical strategy to treat H2S levels as high as 20 or 30 ppm. Catalytic carbon converts adsorbed H2S into sulfuric acid and sulfurous acid that happen to be water soluble, so carbon systems could be regenerated with water washing to restore H2S capacity for less frequent physical change-outs.
Relatively low density
Renewable method to obtain raw material
Impregnated Activated Carbon
Surface impregnation chemically modifies activated carbon through a fine distribution of chemicals and metal particles for the internal surfaces of the company’s pores. This greatly raises the carbon’s adsorptive capacity by having a synergism involving the chemicals along with the carbon. And provides a cost-effective approach to remove impurities from gas streams which may otherwise stop possible.
Water treatment
Because of its antimicrobial/antiseptic properties, silver-impregnated carbon is an effective adsorbent for purification in earth-bound domestic and other water systems.
Gas purification
Impregnated activated carbon is utilized to treat flue gases in coal-fired generation plants as well as other polluting of the environment 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.
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