Key Info On Activated Carbon

WHAT IS ACTIVATED CARBON?

Activated carbon (also referred to as activated charcoal, activated coal or active carbon) is certainly a useful adsorbent. Due to their high surface, 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 base materials for activated carbons are coconut shell, coal or wood.

APPLICATION OF 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 size activated carbon is application specific. Choosing the correct activated carbon product and mesh size is determined by the approval and contaminants you intend to take out.

Typical applications are:

Removal of chemical toxins such as Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and removal of waste gases
Impregnated activated carbon utilized as a bacteria inhibitor in mineral water filters
Removing taste and odor causing compounds including MIB and geosmin
Recovery of gold
Removal of chlorine and chloramine
Designing an effective activated carbon filtering with plenty contact time, pressure drop, and vessel sizing is important. Also, activated carbon’s physical and chemical characteristics play an important 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 carried out to find the best suitable material to your application.

Varieties of ACTIVATED CARBON

Coconut shell-based activated carbon

Abdominal muscles 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 important air applications and also point-of-use water filters and respirators

Extremely high surface area characterized by the great majority of micropores
High hardness with low dust generation
Excellent purity, with many products exhibiting only 3-5% ash content.
Renewable and green raw material.

Coal-based activated carbon

It creates different performance characteristics in industrial applications typically focused on with coal or coconut products.

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

Catalytic based activated carbon

Catalytic carbon can be 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 isn’t impregnated with caustic chemicals
Because catalytic carbons have no impregnates, you won’t need to panic about reduced organic odor capacity or even the higher bed fire potential in the impregnated carbons.

Catalytic carbon is produced by altering the outer lining structure of activated carbon. It can be modified by gas processing at high temperatures to improve the electronic structure that will create the very best a higher level catalytic activity on carbon for reducing chloramine and H2S in water. This added catalytic functionality is significantly greater than that present in traditional activated carbons. Catalytic carbon is definitely an economical treatment for treat H2S levels of up to Twenty or thirty ppm. Catalytic carbon converts adsorbed H2S into sulfuric acid and sulfurous acid which are water soluble, so carbon systems may be regenerated with water washing to revive H2S ease of 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 its pores. This greatly improves the carbon’s adsorptive capacity by having a synergism involving the chemicals and the carbon. And gives a cost-effective approach to remove impurities from gas streams which may otherwise not possible.

Water treatment
Because of its antimicrobial/antiseptic properties, silver-impregnated carbon is an excellent adsorbent for purification in earth-bound domestic along with other water systems.

Gas purification
Impregnated activated carbon is utilized to take care of flue gases in coal-fired generation plants and other polluting of the environment control applications. Carbon could be specifically impregnated for elimination of 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.

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