Very large internal surface areas characterised by microporosity along with relatively high hardness and low dust make these carbons particularly attractive for water and critical air applications such as point of use water filters and respirators respectively.
Venus as a manufacturer and distributor of Coconut Shell based carbons stocks a wide range of high quality products. In addition to granular forms, we hold a number of pelletised grades (3mm, 4mm & 5mm) available for delivery to any destination worldwide.
In-house expertise is available for selection of the optimum carbon for any application.
Products are available in the following mesh sizes (specialised particle distributions are also available on request).
(4.75 x 3.35 mm)
(2.36 x 1.18 mm)
(1.00 x 0.425 mm)
(4.75 x 2.36 mm)
(2.00 x 1.00 mm)
(0.85 x 0.300 mm)
(4.75 x 2.00 mm)
(1.70 x 0.85 mm)
(0.60 x 0.250 mm)
(3.35 x 1.70 mm)
(1.70 x 0.60 mm)
(0.60 x 0.212 mm)
(3.35 x 1.40 mm)
(1.70 x 0.425 mm)
(0.300 x 0.150 mm)
(3.35 x 1.18 mm)
(1.40 x 0.60 mm)
(0.300 x 0.075 mm)
(2.36 x 1.40 mm)
(1.00 x 0.50 mm)
(0.250 x 0.075 mm)
Activated carbon is a non-graphite form of carbon which could be produced from any carbonaceous material such as coal, lignite, wood, paddy husk, coir pith, coconut shell, etc. Activated carbon manufactured from coconut shell is considered superior to those obtained from other sources mainly because of small macropores structure which renders it more effective for the adsorption of gas/vapour and for the removal of colour and odour of compounds.
The activated carbon is extensively used in the refining and bleaching of vegetable oils and chemical solutions, water purification, recovery of solvents and other vapours, recovery of gold, in gas masks for protection against toxic gases, in filters for providing adequate protection against war gases/nuclear fall outs, etc.
Steam activation and chemical activation are the two commonly used processes for the manufacture of activated carbon. However coconut shell based activated carbon units are adopting the steam activation process to produce good quality activated carbon.
Process (Steam Activation)
The process of activation is carried out in two stages. Firstly the coconut shell is converted into shell charcoal by carbonization process which is usually carried out in mud-pits, brick kilns and metallic portable kilns. The coconut shell charcoal is activated by reaction with steam at a temperature of 900oC -1100oC under controlled atmosphere in a rotary kiln. The reaction between steam and charcoal takes place at the internal surface area, creating more sites for adsorption. The temperature factor, in the process of activation is very important. Below 900oC the reaction becomes too slow and is very uneconomical. Above 1100oC the reaction becomes diffusion controlled and therefore takes place on the outer surface of the charcoal resulting in loss of charcoal.
6.5 - 7.5
Methylene Value adsorption mgm / gm
190 - 350
Adsorption capacity at % by mass (min)
Being a client centric organization, we are engaged in manufacturing and supplying a comprehensive range of Coconut Shell Powder. Obtained from matured coconut shells, the range is widely used as a phenolic extruder and filler in diverse industrial applications.
Widely appreciated for quality uniformity, precise composition and resistance to fungal attack, the range is used in the following sectors:
Synthetic resin glues
|Appearance||Clear light brown free flowing powder|
|Moisture||10 per cent max.|
|Apparent density||0.6 to 0.7 g/cc|
|Ash content||1.5 max.|
|Sieve analysis - BS sieve||Retained on 200 mesh shall not exceed 0.1%|