Catalytic oxidizer eliminates VOCs and odor from exhaust air. (Products and Services).

Glenro, Inc., has introduced a new 3,000-standard-cubic-feet-perminute (SCFM) catalytic oxidation system that removes multiple solvents and odors cost-effectively from a process exhaust stream. The oxidizer destroys a combination of aldehydes, ketones, alcohols, esters, and nonvolatile vegetable oil at the rate of 13.3 pounds per hour.

Catalytic oxidation systems are used when the solvent content of an exhaust stream is not sufficient to oxidize without the addition of excessive energy to the process. The use of a catalyst chamber in an oxidation system allows VOC destruction at considerably lower temperatures than a direct-fired oxidation process would require, which saves on fuel costs. The new Glenro system is designed to maintain catalyst temperature at 750[degrees] to 800[degrees]F, which ensures complete destruction of solvents, oils, and related odors to meet air quality regulations. The system further reduces fuel consumption by using an air-to-air exhaust preheat heat-exchanger subsystem, which recovers exhaust heat for use in preheating the solvent-laden air before it enters the burner chamber. As the system reaches operating temperature, the oxidizer burner automatically throttles back to allow the solvents to serve as part of the fuel source for their own destruction.

The new oxidation system measures 18 feet long by 6 feet wide by 12 feet high, including heat exchanger, ductwork, supply blower, and the system's steel-skid mounting. The primary energy source is a gas burner rated at 1,500,000 British thermal units (Btu) per hour, fed by a complete safety gas train that is supplied as part of the design. Built of heavy-gauge stainless steel, the system is shipped prewired and prepiped for easy installation. Controls come in an enclosure that includes all system controls, operator interface components, and safety checks. A two-pen recording indicating temperature controller is employed to provide a continuous record of temperatures both before and after the catalyst chamber.

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