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Environmental System

Regenerative Thermal (Catalytic) Oxidizer

Case study

This case is applicable for optoelectronic industry. Traditionally, thermal oxidizer was implemented to process VOC, but it resulted in a higher fuel consumption. Based on the existing condition and preference in operation, ACTIVE has designed and implemented the Regressive Thermal Oxidizer as the new processing facility. Thus, the thermal oxidizer has since served as a substitute, because the regressive one is much more energy-efficient.

Two of the ACTIVE’s patented technologies are applied in this case

1.Transmission device for the temperature controllable combustion engine
The transmission device for the temperature-controllable combustion engine installed with the provided systems above can be very fuel-efficient. The fuel consumption of the systems is 0~2 Nm3/hr. When the concentration is high during the system entry, no fuel will be used.
2.Airtight structure for the ventilation of the regressive thermal oxidizer
Patented airtight design can avoid the high frequency of replacing materials due to the ventilation switch caused by traditional design.

Process: VOC Control for TFT-LCD Plant
Exist equipment: Rotor concentration and TO
New equipment: Rotor concentration and RTO
Process exhaust flowrate: 9,180 Nm3/hr
Process inlet temp.: 25 ℃
RTO inlet temp.: 60~80 ℃
Exhaust Temperature:(MAX.) 130~180 ℃
DRE (Destruction Removal Efficiency):base on CH4 ≧ 99%