GRANULAR ACTIVATED CARBONS
Environmental awareness has also shaped the manufacturing of activated carbons by introducing the concept that normal everyday waste materials, such as agricultural by-products are potential precursor sources of activated carbon. Nowadays, the sources of activated carbon are extensive and are ever expanding. Any low-cost material with a high carbon content and low in inorganics content can be used as precursors to produce activated carbon.
Activated carbon is the most widely used adsorbent because of its low cost, exceptionally high porosity, tuneable pore size and high adsorptive capacities . The raw materials widely used initially for the production of commercial activated carbon are coal, bone char, peat, petroleum coke, lignite, wood, coconut shells, wood charcoal, coconut shell charcoal and other biomass sources.
However, today the range of precursor materials is diverse and widespread. Nearly all organic materials with relatively high carbon content may serve as raw materials, ranging from conventional materials such as wood, coconut shell or coal to natural or synthetic polymers.
For commercial grade carbons, the values of surface areas typically vary in the range between 500 and 1500 m2/g or even as high as 3000 m2/g. They can be further separated into two sub-categories in accordance with their applications, namely, gas phase and liquid phase, in which the former is usually microporous (pore diameter < 2 nm) in granular form (2.36–0.833 mm, or 8/20 in mesh size) and the latter is mesoporous (pore diameter lies between 2 and 50 nm) in powdered form (0.150–0.043 mm, or 100/325).
Both granular and powdered activated carbons have been shown to be effective in wastewater treatment in which activated carbons play an important role in decolorising, odour removal, gas removal, and metal removal and recovery as well as organics adsorption.
PRODUCTS
ACID WASHED ACTIVATED CARBONS
Active carbon contains large amount of acid soluble inorganic material depending on the precursor and its source of origin. Active carbon has very high capacity to adsorb organics, inorganics, bad taste and odour material. Adsorption capacity is enhance by modifications such as acid washing because this modification removes the acid soluble inorganic materials from the carbon and make it more porous, efficient and useful for various liquid process applications such as waste water treatment, water purification, decolourisation process in chemical and pharmaceutical industries, food and beverage industry for many purposes such as decolourization of sugar, dechlorination, decaffeination, purification of organic compounds,etc.
We manufacture acid washed active carbons as per the customer requirements for the applications mentioned above.
FEATURES & BENEFITS
Some of the benefits of Acid Wash carbon include Dechlorination of water, better taste, removal of bad odors, removal of color from water, removal of organic substances, etc. Acid wash carbon has extensive internal structure, neutral surface, maximum hardness, extended operational life, high volume activity, and rapid pH stabilization.
Acid wash carbon is used in various applications such as Condensate de-oiling, semiconductor process water, and protection of reverse osmosis membranes from chlorine and organic fouling.
PRODUCTS & SPECS
● ACG-50 (Acid Washed)
● ACG-60 (Acid Washed)
Silver Impregnated AC / Bacteriostatic
One of the main applications of granular activated carbon is the purification of water. Its function is the retention of organic contaminants and the elimination, by chemical reaction, of the free residual chlorine that remains in the water after the disinfection stage. The removal of free chlorine takes place in the first few centimeters of the carbon bed, so there is no longer any protection against bacterial growth in the rest of the bed. Sooner or later, bacteria can enter from a poorly disinfected influent, or from some point in the effluent pipe. This may happen mainly when there is no water circulation while the equipment is out of service. Bacteria reproduce, and turn the carbon bed into a source of contamination.
In order to inhibit bacterial growth, the surface of the carbon is impregnated with 0.1% metallic silver to make carbon bacteriostatic using ionic silver to enable it to bind strongly with carbon surface to make it suitable to function and purify large volumes of water.
FEATURES & BENEFITS
● High efficiency
● Negligible silver leaching
● No health hazards to humans
● No loss in Bacteriostatic property up to 6000 litres water
● Available in Granular and block form
PRODUCTS & SPECS
● IND-104
● IND-105
Respiratory / Military Application
Whetlerite carbons are Cu, Cr and Ag impregnated activated carbons used for respiratory protection against super toxic nerve, blister, blood and choking agents in the military. Whetlerite carbons are used in nuclear, biological and chemical (NBC) filters for collective protection, and in NBC canisters, as part of individual gas masks, for personal protection. ACIPL expertises in the impregnation of active carbon and this whetlerite carbon is one of the best example as we bulk produce this materialto meet the Defence requirement of our country.
FEATURES & BENEFITS
● Low pressure drop
● Hardness enough to withstand transport hazards
● Highly efficient
● High surface area
● Low moisture content
● No ammonia smell from canisters and filters based on this grade of impregnated carbon
● Provides longer duration of protection against Organic volatiles including nerve and blister agents
● Provides longer duration of protection against inorganic volatiles including blood and choking agents
● Provides protection against gas mask breaking agents such as Cyanogen chloride
PRODUCTS & SPECS
ASC WHETLERITE
ACID GAS REMOVAL
Our impregnated activated carbons assist with removal of odorous sulphur compounds in sewage pumping stations, personal protection respirators, and removal of corrosive gases from air intake systems—specifically in electronics manufacturing facilities, museums etc.
PRODUCTS & SPECS
● ACI HIKA G
● ACI HIKA I
● ACI HIKA II
AMMONIA REMOVAL
Our AMSORB-I product categories are designed for removal of ammonia and its derivatives from air and gas streams.
PRODUCTS & SPECS
● AMSORB I
MERCURY REMOVAL
Mercury and its compounds are cumulative toxins that are harmful to most forms of life even when taken in very small amounts. It’s unique properties allow widespread applications across the paper and pulp industry, chemical processors, agricultural industries, specialized battery producers, and chloroalkali manufacturers. It is also found naturally in coal—which is released on burning in power plants and heat generators, in oxygenated waters—which eventually accumulates in fish, and in air and natural gas. Activated carbons are an excellent solution to control the widespread discharge of elemental mercury and its salts.
FEATURES & BENEFITS
● Specially designed to treat a variety of flue gas compositions, high adsorption capacity for many pollutants with exceptional mercury removal rates and low carbon usage.
● Most commonly used adsorbents for removal of pollutants and treatment of wastewater
PRODUCTS & SPECS
● HG SORB
NUCLEAR GRADE APPLICATION
Nuclear technology involves several operations, the more important being the production of nuclear fuels, processing of spent fuels, and operation of nuclear reactors. All these operations require a thorough purification of the exhaust and circulating gas. Because many of these processes involve inert gases or radioactive gases, their removal can best be carried out by activated carbon adsorption.
FEATURES & BENEFITS
● Performance of these carbons used in the air cleaning unit.
● Used for removing toxic materials from a fluid.
● Used in military gas masks for removing toxic gases, apparatuses for adsorping toxic gases in the general industrial fields
PRODUCTS & SPECS
● N SORB I
DESULPHURIZATION
Sulfur dioxide is the major air pollutant obtained from the combustion of fossil fuels. Exhaust gases from several industrial and production units where coal or sulfide ores are used, contain sulfur-containing toxic gases and vapors such as sulfur dioxide, hydrogen sulfide, carbon disulfide, and several organosulfur compounds. These industrial gases need to be desulfurized effectively before mixing with the environment. While protecting the environment from pollution, commercial benefits in terms of recovery of a valuable component, sulfur, can also be derived with the use of activated carbons.
Activated carbons are promising adsorbents for SO2 and sulfur-containing toxic gas removal due to their high efficiency and regenerative capacity.
PRODUCTS & SPECS
● ACI HIKA G
FORMALDEHYDE REMOVAL
Formaldehyde and other aldehydes are the main pollutants in indoor air. Formaldehydes are mainly obtained from paint, polymerizing plates, bindings, chemical fibers and even cigarette smoke. Being toxic, a high concentration of formaldehyde can cause symptoms such as headache and nausea, and may lead to lung cancer. Activated carbon adsorbents are the most promising adsorbents when adsorption of traces of gases and vapors is concerned.
Our impregnated activated carbons offer effective chemisorption of formaldehyde from air.
PRODUCTS & SPECS
● FORMSORB
CO REMOVAL
Carbon monoxide (CO) is a very toxic gas with TLV of 35 ppm and it is to be removed from the air in mines, enclosed spaces, fire breaking places for the sustenance of the life. Active carbon can not hold the CO due to physisorption and therefore many impregnants were used in past to make the CO removal adsorbent. Copper and manganese based adsorbent was found to be best but its main disadvantage was that it got deactivated at high RH. In order to overcome this disadvantage palladium impregnated carbon was developed which became even more active due to high RH. This again one of the very specialized carbon developed by us for air purification and CO removal. It almost works like the turn over catalyst and offers very high protection against CO.
FEATURES & BENEFITS
● High Surface area carbon
● Highly efficient for CO removal
● Almost offers endless protection against CO
● Works as turn over catalyst
● Palladium found to be of nano size in this product
● Works in any RH but becomes more active at high RH
PRODUCTS & SPECS
Paladium Impregnated Carbons
Note: CO removal capacity has been specified for quality control, otherwise it offers very high protection.