CPI Installs RTO for Coating Dryer

    Catalytic Products International (CPI) installed a Regenerative Thermal Oxidizer (RTO) at a Northwest USA manufacturing facility for the abatement of Volatile Organic Compounds (VOCs) emissions from a coating dryer.


    The 8,000 SCFM TRITON-8.95 Regenerative Thermal Oxidizer (RTO) was installed as part of a facility expansion. Working closely with this longtime customer CPI was able to provide an RTO similar to one installed by CPI at another of the customer’s facilities.

    The RTO controls odors and VOC emissions, including phenol and other compounds from a new web coating process line. The RTO system will destroy the incoming VOC emissions from the coating process with 98% destruction efficiency (DRE) at a thermal efficiency of 95%.

    Thermal treatment of VOCs and other air pollutants works by a simple reaction of the harmful hydrocarbon-based air pollutants with oxygen and heat. In this environment, the VOCs are oxidized to form harmless inert by-products like CO2, water vapor (H2O), and usable heat. These harmless by-products are released to the atmosphere or used within primary or secondary energy recovery techniques to further lower the operational costs.

    CPI Regenerative Thermal Oxidizers (RTOs) are engineered to provide exceptional performance and reliability. During operation of the standard two chamber RTO, the VOCs are directed into one of the system’s regenerators, an internally insulated vessel containing specialized ceramic media which allows thermal rate efficiencies up to 97%. The contaminated gases are passed through the first regenerator where energy is transferred from the ceramic media to the gas in order to elevate the temperature. This elevated temperature approaches the ignition level for most solvents and is then directed from the ceramic bed into the combustion chamber. As the stream exits the ceramic bed and travels through the internally lined combustion chamber, minimal heat is added to ensure a proper oxidation temperature and a designed dwell time is maintained providing destruction of the VOCs at greater than 98% efficiency. The resultant clean, oxidized gases are directed to the second regenerator to absorb the heat energy before being released to the atmosphere.

    CPI designed, fabricated and supplied a fully skid mounted, pre-piped and pre-wired RTO with the media installed) on a customer supplied concrete pad. In addition, CPI provided the exhaust stack, an outdoor rated, airconditioned control panel pre-mounted and pre-wired to the oxidizer skid, and startup services.

    CPI worked closely with the customer to minimize the downtime associated with the installation of the Regenerative Thermal Oxidizer (RTO). CPI was able to complete a good portion of the installation activities before the new unit arrived on site for final assembly.

    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 chemical manufacturing 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.

    Topics: Air Pollution Control, Regenerative Thermal Oxidizer, Web Coating, News, Paint & Coatings, Blog

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