Web Coating

To control the exhaust emissions from up to three coating line dryers, a leading manufacturer of print marking ribbons installed a Regenerative Thermal Oxidizer equipped with a secondary heat recovery system from The CMM Group.

The CMM RTO replaced an aging thermal recuperative oxidizer that presented both maintenance and operating cost problems because of its natural gas usage. The 22,500 scfm RTO from CMM is designed to destroy 99%+ of the hexane, isopropyl alcohol and toluene VOCs generated by the company’s three coating line dryers. The unit is designed to be self-sustaining with an inlet VOC concentration of approximately 9% LFL. The maximum inlet VOC loading is not expected to exceed 815 pounds per hour.

For additional energy savings, the secondary heat recovery system is designed to direct the heat recovered from the oxidizer back into the company’s curing oven and reduce natural gas usage.

To control the 60 to 80 pounds per hour of MEK, acetone, DMF and toluene VOCs emitted from a treater/dryer, a leading manufacturer of printed circuit boards used in a variety of applications including high-end computing, telecommunications, military medical, automotive, etc., installed a 3,000 scfm Regenerative Thermal Oxidizer from The CMM Group.

Featuring pneumatic poppet valves for the heat exchanger canister airflow switching, the CMM RTO destroys 98% of the VOCs generated during the company’s 24 hour per day/6 days per week production schedule.

When a manufacturer of custom coated and laminated films and metalized films needed to replace an old catalytic oxidizer, they selected The CMM Group to provide them with a rewarranted 19,000 scfm catalytic oxidizer.

After the original unit was picked up, inspected and equipped with any required replacement parts, CMM delivered and set-up the unit at the customer site. Equipped with a precious metal bead type catalyst, the unit was guaranteed to provide a 98% VOC destruction efficiency and includes an insulated hot-side by-pass duct with an automated damper, 70% efficient plate type heat exchanger with heavy duty expansion joints and a modem for remote access.