Granular activated carbon has a relatively larger particle size compared to powdered activated carbon and consequently, presents a smaller external surface. Diffusion of the adsorbate is thus an important factor. These carbons are therefore preferred for all adsorption of gases and vapours as their rate of diffusion are faster. Granulated carbons are used for water treatment, deodourisation and separation of components of flow system. GAC can be either in the granular form or extruded. GAC is designated by sizes such as 8×20, 20×40, or 8×30 for liquid phase applications and 4×6, 4×8 or 4×10 for vapour phase applications. A 20×40 carbon is made of particles that will pass through a U.S. Standard Mesh Size No. 20 sieve (0.84 mm) (generally specified as 85% passing) but be retained on a U.S. Standard Mesh Size No. 40 sieve (0.42 mm) (generally specified as 95% retained).
Activated carbon is the most popular and the cheapest material used in purification of alcohol,and steam-activated carbon is derived from natural raw materials.Much of activated carbon is regenerated (cleaning/desorption) and is used hundreds,or even thousands,of times.
We are suppling Granular Activated Carbon from coal for water treatment.
1) Specification as follows:
Iodine absorbed Value, 800-900, 900-100, 1000-1050 Mg/g and up.
Mesh 1.0-2.5mm, 97%;
2) Packing: Woven PP bags.
3) Shipment time: About 15 days.
4) payment terms; by L/C at sight or by T/T.
For reliable buyers, please do not hesitate to contact with us.
Activated carbon (also called activated charcoal) is the more general term which includes carbon material mostly derived from charcoal.