FIND

Comparison of Various Combustion Methods

There are four major combustion methods to treat VOCs: Direct Flame Incinerator (DFI), Regenerative Thermal Oxidizer (RTO), Catalytic Combustion System (CCS・CATox・CO) and more recently Regenerative Catalytic Oxidizer (RCO).
Among them, the CCS and the RCO methods (by catalytic oxidation) allow to avoid the formation of thermal NOx and CO gases and provide a high-level VOCs destruction while efficiently eliminating inconvenient smells.

Catalytic Combustion
System
(CCS・CatOx・CO)
Regenerative Catalytic
Oxidizer
(RCO)
Direct Flame
Incinerator
(DFI)
Regenerative
Thermal
Oxidizer(RTO)
Schematic diagram
Standard operating temperature 300℃ 300℃ 800℃ 1,000℃
VOCs destruction and removal efficiency 99.99x% 99.x% 99.x% 99.x%
Deodorization efficiency Excellent Good Good Good
Generation of thermal NOx None None Generated Generated
CO destruction Easy Easy Difficult Difficult
Heat recovery rate 60% 95% 60% 95%
Initial cost High High Moderate Moderate
Running cost Low Very low High Low

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