Wide insistence on this product for a multitude of uses, particularly
air/gas treatment and Purification, Precious Metal Recovery, and
Catalysis, is attributable to one or more combinations of the following:
surface area pores of 5 to 10 A 0 radius, which provides
unmatchable adsorption and retentive capabilities for gases and
low molecular weight.
Hardness of the natural grains often superior to even more expensive
extruded types, assuring sustained bed volumes / Carbon inventories
in circuit, and hence, efficiency levels, despite successive back
washes / steaming / high temp. Reactivation and rigorous of handling
or hydraulic transport of carbon.
- High density
- if mass transfer zone / pressure drop parameters are met, this
property facilitates very substantial economies in filter size
for the same efficiencies alternative Carbons provide.
- Low Ash
Content - contributing to high purity even without treatment.
Phases of Activated Carbon
exclusive properties are, however, not only a function of the raw
material type, but more so of its origin, its quality and the diligence
with which the processes which convert it to the required class
of Activated Carbon, are managed; a process which defies total automation
and is often too costly for human control.