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Advances in VOC/HAP-Control Technology

SpecialChem / Feb 16, 2004

Since the Clean Air Act (CAA) was enacted in 1970, and amended in 1977, and again in 1990, the Environmental Protection Agency (EPA) has continued to tighten the limits on emissions of Hazardous Air Pollutants (HAPs) and Volatile Organic Compounds (VOCs). Fortunately, the development of new air-pollution-control technologies has kept pace with changing EPA regulations. The basic technologies of 30 years ago still are in use. However, today’s oxidation systems are smaller, lighter, easier to maintain, and far more efficient and cost-effective than their predecessors. The challenge of regulatory compliance today lies in identifying the best solution for the paint and coatings industry, and the correct integration into the process. Every thermal oxidizer works on the principle of converting VOCs and HAPs into carbon dioxide and water. The quickest way to accomplish this is by heating those VOCs and HAPs to between 1400 deg F and 1800 deg F to complete the oxidation process. However, heating compounds to such high temperatures uses large amounts of energy.

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