Catalytic Thermal Oxidizers
Catalytic Thermal Oxidation occurs through a chemical reaction between the VOC hydrocarbon molecules and a precious-metal catalyst bed that is internal to the oxidizer system. A catalyst is a substance that is used to accelerate the rate of a chemical reaction, allowing the reaction to occur in a normal temperature range of 550°F – 650°F (275°C to 350°C).
Thermal Oxidation Catalyst for VOC
(Volatile Organic Compounds)
- Terpene/pinene
- Methanol
- Formaldehyde
- Styrene
- Ketones
- Acetates
- Phenol
- CO (>99.99% Conversion)
- Many Other Organic Compounds
Industrial off-gas often contains a wide diversity of chemical compounds. These are generally divided into volatile organic components (VOC) or (halogenated) hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOX, N2O and NH3) and sulfur compounds. At the same time, the elimination of odorous components is becoming increasingly important.
The economic benefit gained by saving energy and the reduction in material stress due to lower operating temperatures make catalytic emission control the first choice for many industrial plants. It is also an ideal way of upgrading existing thermal plants, as well as promoting the use of smaller heat exchangers which leads to more compact plants. Lower operating temperatures also offer an added advantage by effectively preventing the formation of thermal nitrogen compounds.
Catalysts for Industrial Off-Gas Treatment
- Oxidation Catalysts
- NOX and N2O Reduction
- Ozone and Odor Decomposition
- Absorbtion of Toxic Gases
- Cost Effectiveness
VOC-Catalysts for use in Regenerative Catalytic Oxidizers (RCOx) and for upgrade of Regenerative Thermal Oxidizers (RTOx)
With catalysts, several emission improvements can be realized in addition to eliminating the target VOCs. Thermal Oxidizer NOX, a problem with most Thermal Oxidizers is reduced to near zero, and carbon monoxide typically is measured below 1 ppm. By using less natural/fuel gas, a plant will lower its overall greenhouse gas emissions (GHG) by reducing the total CO2 formed during combustion. With less CO2, your company is actively participating towards the worldwide efforts to minimize Global Warming. In some instances, the cost of catalyst can be offset via trading or selling of emission credits.
CCS&ES offers today’s market cost effective catalyst change outs and services on many system are completed within a one day outage. Recycling of used catalyst is provided upon request and CCS&ES pays for the shipping.