Catalytic Products International (CPI) rebuilt a QUADRANT SR- 8,500 SCFM Recuperative Thermal Oxidizer used for the control of volatile organic compounds (VOCs) and Hazardous Air Pollutants (HAPs) at a Midwest USA resin-coating facility.
As part of the customer’s aftermarket service contract, CPI conducted an annual maintenance inspection of the Recuperative Thermal Oxidizer. During the inspection it was determined that the existing combustion chamber needed repairs due to thermal fatigue of internal components. The rebuild of the Recuperative Thermal Oxidizer included removal and replacement in the combustion chamber section, insulation and reinforcement of the existing structure and repairs to heat exchanger as well.
CPI worked closely with this long-time customer to minimize the downtime associated with the disassembly and removal of the old components and installation of the new combustion chamber. CPI was able to complete a good portion of the installation activities before the new equipment arrived on site. This approach guaranteed that the entire system was installed correctly, and the facility was back up in production with minimal downtime.
The rebuilt Recuperative Thermal Oxidizer controls VOC emissions from the resin coating process with a destruction rate efficiency (DRE) of 99%. Thermal treatment of VOCs and other air pollutants works by a simple reaction of the harmful air pollutants with oxygen and heat. In this environment, the VOCs are converted into harmless inert byproducts, water vapor (H2O), and usable heat. These harmless by-products are typically released to the atmosphere, or in some cases use an energy recovery technique to further lower the operational costs.
A Recuperative Thermal Oxidizer utilizes a superior combustion and dwell chamber coupled with a cylindrical design for efficient destruction of VOCs. The unique design starts by drawing the solvent laden fumes into the high temperature primary heat exchanger where they are preheated. From there the process flow enters the high velocity combustion chamber where it then travels down the elongated combustion chamber at very high velocities, causing flame impingement and turbulence to occur and providing excellent mixing of the air stream. Next, the heated process stream enters the dwell chamber where the VOC and CO are converted to harmless CO2 and H2O.
Catalytic Products International (CPI) has been “Enabling Clean Production™ Since 1969” and continues as a leading supplier of air pollution control equipment. CPI is at the forefront in providing industries including the sand resin-coating industry with solutions to their air pollution control needs.
Today, CPI partners with its customers as a trusted resource in resolving the most complex air pollution and energy conservation problems. We provide our customers with innovative and cost-conscious solutions to their most complex VOC, NOx, and Odor pollution challenges. Our equipment is also at work meeting energy conservation strategies and minimizing greenhouse gas (GHG) emissions.
