~ Coconut Shell Based Activated Carbon
~ Free Carbon Testing Service (CTC Testing)
~ Bonded Activated Carbon Panels
~ Galvanised Steel frames
~ Loose Fill Activated Carbon Panels now available
Applications
Activated Carbon Panel Filters are normally supplied
fitted with an aluminium frame and can be made to any reasonable size
to match existing panels of all makes.
The depth of the bonded carbon panel filter is restricted
by our own imposed limits of not less than 10mm and not greater than
60mm Actual depth.
Capacities shown for Activated Carbon Panels &
Activated Carbon Discarb
Cells are based on a dwell time of 0.1 seconds, which is the normally
accepted minimum for most applications. Description
For heavier odours i.e. Indian or Thai cooking odours, a contact time
of 0.3 seconds with the carbon filter is recommended to ensure effective
odour control, which will effectively reduce the Face Velocity and
rating to one third.
Where hot air is being filtered (e.g. extract from cooker hoods) the
activated carbon panels or discarb
cells should be positioned as far from the heat source as possible,
so not to comprimise effective odour removal.
Air stream temperatures in excess of 40°C should not be exceeded.
If temperatures in excess of this figure are anticipated, reduce the
air temperature by means of a fresh air bleed or a cooling coil.
Humidity levels must be maintained below 80%RH for air passing through
the activated carbon panel. Again this can be acheived by mixing with
dry air or conditioning the airstream.
Pre-filters should be fitted in the ventilation system to protect
activated carbon filters, to protect the carbon filters and ensure
a good life for the filter. We do not consider a glass
panel to be suitable and recommend a filter having a minimum grade
of F5 to EN779, such as a general
purpose multi pocket filter.
Some cooking operations give off large amounts of smoke, which is
extremely detrimental if allowed to reach the carbon filters(
smoke is a particulate). (See HEPA
Filters, or Electrostatic
Precipitators for smoke control)
Grade 20 Activated Carbon Filters are rated 30% on
their ability to adsorb carbon tetrachloride (CTC) in testing; and
have a typical surface area per weight of between 700-800 m2/g by
the BET N2 method (the area being a measure of the area of the walls
of the cavern like structure of the activated carbon): Bulk density
is between 0.55 - 0.59 g/cc
Grade 50 Activated Carbon Filters are rated 55% on
their ability to adsorb carbon tetrachloride (CTC) in testing; have
a typical surface area per weight of between 1100-1200 m2/g by the
BET N2 method (the area being a measure of the area of the walls of
the cavern like structure of the activated carbon): Bulk density is
between 0.49 - 0.53 g/cc
