Biofilters and oxidizers can be effective control devices to remove organic vapors that are hazardous air pollutants (HAPs) or volatile organic compounds (VOCs) from gas streams because they can convert toxic organic vapors into carbon dioxide and water. However, fluctuations in the vapor’s concentration make it challenging for these devices to operate efficiently and economically. Combining adsorption with concentration and flow rate-controlled desorption provides an active buffer between the source of vapor and a secondary control device to more effectively remove the vapor from gas streams at a well defined concentration and total gas flow rate. Such approach can enhance the performance of the secondary control device by providing a stable concentration of vapor at a reduced total gas flow rate, which can result in a small more efficient secondary control device.
展开▼
