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The PROTECT™ VS vapor phase carbon adsorber canisters are air-or vapor-treatment units that can treat higher flow rates and contain larger beds of activated carbon, but with the
convenience of an economical canister. PROTECT™ VS canisters contain all of the operating elements required for utilization of granular activated carbon in air or vapor treatment, including a flat carbon bed support across the entire bed cross sectional area and plenum area below this support for effective air introduction and distribution across the bed. The canisters are constructed of unlined carbon steel with a stainless steel screen bed support for use with activated carbon in air treatment.
The PROTECT™ VS vapor phase carbon adsorber canisters are available in three sizes that can contain up to 8,000 pounds of granular activated carbon for treating air or vapor sources typically up to 4,500 cfm. The PROTECT™ VS canisters can be used in operating pressures up to 1 psi and a moderate vacuum of up to 5 inches mercury.
The PROTECT™ VS vapor phase adsorbers can be provided with any of Continental Carbon Group’s wide variety of vapor phase activated carbon products that can be selected for a specific air or vapor treatment application.
PROTECT™ VS canisters are shipped with the dry activated carbon fill installed in the unit. The canisters are self-supporting and should be set on a level accessible area as near as possible to the emission source. Standard installation does not utilize any anchoring devices. Installation is simple, requiring a flexible hose, duct or pipe to connect the vent or emission source to the flanged bottom inlet of the canister.
The PROTECT™ VS canister’s treated air discharge is a flanged connection on the upper side of the vessel and can be left open or equipped with flexible hose, duct or pipe to direct the treated air to a desired discharge point. If the canister is located outside and is to be vented directly, then a U-shaped outlet pipe or rain hat (such as a pipe tee) is recommended to be installed to prevent precipitation from entering the unit.
The recommended air flow for the PROTECT™ VS canisters are listed in the table on page 3. If higher flows are anticipated, then either a larger canister should be utilized or two or more
PROTECT™ VS canisters should be placed in parallel operation.
The table also lists the recommended maximum static pressure and vacuum capabilities. These ratings should not be exceeded, as the canister could be irreparably damaged.
When the treated air or vapor exceeds the desired contaminant concentration, the granular activated carbon in the PROTECT™ VS canister should be replaced with fresh activated carbon. The canister is to be isolated from the process by either closing and locking the inlet and outlet valves, or physically disconnecting the canister from the inlet and outlet pipe or hose. The carbon exchange procedure can either take place where the canister is installed, or the disconnected canister can be moved to another location for this activity.
Contact Continental Carbon Group for resupply of the carbon products and complete turnkey services, including removal and management of the spent carbon and refilling the canister with the fresh carbon.
Pressure drop through a PROTECT™ VS canister is a function of the process air flow as shown in the graph below. If higher flows or lower pressure drop are needed, multiple canisters can be installed in parallel operation. The maximum pressure in the canister should not exceed 1 psig, regardless of the pressure drop across the unit.
The PROTECT™ VS canister is designed for a variety of air or vapor applications at air flows up to 4,500 cfm and pressures up to 1 psi. Continental Carbon Group offers a wide range of carbon adsorption systems and services for a range of air or vapor flow rates and pressures to meet specific applications.
Activated carbon preferentially removes oxygen from air. In closed or partially closed containers and vessels, oxygen depletion may reach hazardous levels. If workers are to enter a vessel containing carbon, appropriate sampling and work procedures for potentially low oxygen spaces should be followed, including all applicable Federal and State requirements.
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