Activated carbon filtration systems have been used for decades in critical applications for the removal of harmful odors and chemical gases. Carbon works through a process called adsorption – the deposition of a gas on solid. Because of its molecular structure, Carbon is an excellent natural adsorber. For this reason, hospitals, museums, and clean manufacturing facilities all rely on the power of activated carbon to capture gas phase contaminants.
Dynamic ACM material was developed using advanced composites and extrusion technologies to increase carbon utilization. The patented, revolutionary design utilizes an activated carbon/ceramic honeycomb matrix that features unrestrictive air channels to provide a pathway for air to flow with low resistance. The carbon and ceramic are tightly bound together, eliminating dust shedding and the need for downstream filters. Today, Dynamic ACM systems are the perfect solution for a wide range of applications. Dynamic ACM systems require less space, operate with a very low pressure drop and require no post filters, enabling Dynamic ACM systems to be used today in a variety of applications where carbon filtration was previously not an option. State-of-the-art carbon technology eliminates unwanted odors, removes corrosive gases, removes target contaminants, and supplies purified air more efficiently.
Dynamic ACM systems can be used in:
Activated carbon and longevity are impacted by the weight of the carbon and the mass transfer zone (MTZ) length. MTZ impacts the efficiency and more carbon increases the total capacity for odor removal. One gram of activated carbon has 10,000 square feet of internal surface area. One pound of activated carbon has a surface area equal to about 125 acres. Based on the contaminants of concern and their concentration levels, the media life for Dynamic ACM is predictable. In addition, the media can be engineered on a job-by-job basis to meet specific performance requirements such as static pressure drop, maximum face velocity and residence time. Common target contaminants include Hydrogen Sulfide, Sulfur Dioxide and other acid gases and odors.
Dynamic ACM is engineered to deliver an 80.0% to 90.0% upstream/downstream removal. The chart above shows removal of Xylene which is has similarrepresentative characteristics of vehicle exhaust emissions and common VOCs
The most widely used commercial carbon filtration systems consist of 1”-2” deep trays filled with carbon pellets. Large arrays are typically used and air handling systems require powerful fans to overcome very high resistance to airflow. And because carbon pellet systems can shed carbon dust, downstream filters become necessary which can further restrict airflow.
Extended life pellets were introduced in the marketplace over a decade ago, and are formulated to maintain their shape and integrity for a period of four years of operation. Over time, pellets are subject to diurnal and seasonal swings in temperature and humidity, as well as constant vibrations. Granular residue will eventually plugs screen material and lead to channeling in the media, which can allow untreated, contaminant laden air to enter the protected space.
Dynamic ACM systems can be retrofitted into existing pellet cassettes (V-banks) and HVAC units and provide significant advantages including: