Useful Information On Activated Carbon

Precisely what is ACTIVATED CARBON?

Activated carbon (otherwise 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 a higher level surface reactivity, activated carbon enable you to purify, dechlorinate, deodorize and decolorize both liquid and vapor applications. Moreover, activated carbons are economical adsorbents for many 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.

APPLICATION OF ACTIVATED CARBON

A variety 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 of activated carbon is application specific. Selecting the correct activated carbon product and mesh size is determined by the applying and contaminants you intend to get rid of.

Typical applications are:

Elimination of chemical toxins including Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and removing waste gases
Impregnated activated carbon used as a bacteria inhibitor in mineral water filters
Eliminating taste and odor causing compounds for example MIB and geosmin
Recovery of gold
Removing chlorine and chloramine
Designing an effective activated carbon filtering with plenty contact time, pressure drop, and vessel dimension 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 such as butane activity, floor, density, and water content (moisture) can be accomplished to find the best suitable material to your application.

Kinds of ACTIVATED CARBON

Coconut shell-based activated carbon

The very large internal surface areas seen as microporosity as well as high hardness and low dust make these coconut shell carbons particularly attractive for water and important air applications as well as point-of-use water filters and respirators

Quite high floor seen as an the great majority of micropores
High hardness with low dust generation
Excellent purity, with most products exhibiting a maximum of 3-5% ash content.
Renewable and green raw material.

Coal-based activated carbon

It creates different performance characteristics in industrial applications typically catered to with coal or coconut products.

Wood based activated carbon includes a high area seen as an both mesopores and micropores and possesses excellent decolorizing properties owing to its signature porosimetry

Catalytic based activated carbon

Catalytic carbon is often a type of activated carbon utilized to remove chloramines and hydrogen sulfide from h2o.

They have all of the adsorptive characteristics of conventional activated carbons, along with the ability to promote chemical reactions.

Catalytic carbon just isn’t impregnated with caustic chemicals
Because catalytic carbons have zero impregnates, you won’t need to bother about reduced organic odor capacity or perhaps the higher bed fire potential from the impregnated carbons.

Catalytic carbon is made by altering the outer lining structure of activated carbon. It is modified by gas processing at high temperatures to improve the electronic structure that will 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 seen in traditional activated carbons. Catalytic carbon can be 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 which are water soluble, so carbon systems might 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 by having a fine distribution of chemicals and metal particles for the internal surfaces of its pores. This greatly increases the carbon’s adsorptive capacity by way of a synergism relating to the chemicals as well as the carbon. And offers a cost-effective way to remove impurities from gas streams which could otherwise not be possible.

Water treatment
Due to the antimicrobial/antiseptic properties, silver-impregnated carbon is a great adsorbent for purification in earth-bound domestic and other water systems.

Gas purification
Impregnated activated carbon is utilized to take care of flue gases in coal-fired generation plants along with other pollution control applications. Carbon may be specifically impregnated for removal of 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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