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Epcon Industrial Systems (The Woodlands, Texas, U.S.) has successfully engineered and installed a high-efficiency composite curing oven and regenerative thermal oxidizer (RTO) system for a major adhesives and sealants producer, tackling the dual challenge of precision curing and volatile organic compound (VOC) emissions control.

In the production of epoxy resins, polyurethanes and phenol-formaldehyde adhesives, high levels of VOCs are generated — posing both environmental and operational challenges. Traditional VOC treatment methods are often costly and inefficient. Epcon says that its patented solution combines advanced oxidation technology with integrated heat recovery to reduce emissions while reducing energy costs.

The custom system features a three-chamber RTO with more than 95% heat recovery efficiency, achieving 99%+ VOC destruction at temperatures up to 1600°F. The oxidized exhaust is redirected through secondary and tertiary heat exchangers, repurposing waste heat to power curing ovens and preheat water used in adhesive processing.

Additionally, Epcon’s intelligent control system — powered by programmable logic controllers (PLCs) and variable frequency drives (VFDs) — ensures real-time adjustment of airflow, temperature and pressure, maintaining optimal curing conditions across varied production lines. With a 20:1 burner turndown ratio and precision software control, manufacturers can pre-define process parameters for consistent, automated operation.

Through integration of air pollution control and process heating, the Epcon system significantly reduces natural gas and electricity consumption, lowers operating costs and ensures full compliance with air quality regulations.