3454 Silica Road
Sylvania, Ohio 43560
Phone : 419.841.9984
Fax: 419.841.9535
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Articles & Resources From Combustion Controls Solutions & Environmental Services, Inc.

3454 Silica Road, Sylvania, Ohio 43560
Phone: 419.841.9984    Fax: 419.841.9535

Energy savings through regenerative thermal oxidizer equipment

Conserve energy and save money on air pollution controls with regenerative thermal oxidizer equipment

Regenerative thermal oxidizer equipment ranks among the leading air pollution control systems to conserve energy and save money while achieving the highest rates of volatile organic compound (VOC) destruction from the exhaust of a manufacturing or refining enterprise. By recycling heated air through the exhaust stream from a destruction chamber, operators can conserve up to 95 percent of blast furnace heat. This principle of heat exchange in the control of air pollution not only slashes energy expense, but also continues to deliver up to 98 percent destruction rates for VOCs. These devices represent an evolution in air pollution controls, saving fuel and air quality in a cost effective manner for the good of communities and the business that serve them.

Thermal oxidizers took hold shortly after the passing of the Clean Air Act of 1970, with companies gravitating to thermal oxidation’s high destruction rate for hazardous air pollutants as a means to stay in federal compliance. However, the earliest direct-fired thermal oxidizers – known as ‘Afterburners’ – were at first highly inefficient and required continuous fuel feeds to maintain operating temperatures. Following the fuel shortages of the late 1970s, engineers developed means of exchanging heat within the combustion chamber, giving rise to regenerative thermal oxidizer equipment.

Regenerative thermal oxidizer equipment works in a two-stage process. VOC and HAP-laden exhaust first flows from the manufacturing process before entering a manifold for preheating. As the stream runs across the heated stoneware in a first chamber, a chemical reaction takes place to oxidize and destroy the VOCs in the flow. The heated gas then enters a second chamber, heating a secondary stoneware bed as it cools and is released as contaminant-free exhaust. The process then flips to the now-heated secondary stoneware bed as the heating station for incoming pollutants, before heating the primary bed. This cycle for regenerative thermal oxidizer equipment contains heat and allows for higher efficiency.

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