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Address: Jurong East Road, Huantai Industrial Park, Zibo City, Shandong Province
Tel: +86-135-8959-1050
E-mail: [email protected]
Tel: +86-135-8959-1050
E-mail: [email protected]
Common Problem
Differences Between RTO and RCO Devices
时间: 2025-08-01 11:00
In the treatment of organic waste gases (VOCs), RTO (Regenerative Thermal Oxidizer) and RCO (Regenerative Catalytic Oxidizer) are two common high-efficiency technologies. Their core differences are as follows: 1. Reaction Principle RTO: Dec
In the treatment of organic waste gases (VOCs), RTO (Regenerative Thermal Oxidizer) and RCO (Regenerative Catalytic Oxidizer) are two common high-efficiency technologies. Their core differences are as follows:
1. Reaction Principle
RTO: Decomposes organics by direct oxidation at high temperatures (usually 760~1200℃), converting VOCs into CO? and H?O without the need for a catalyst.
RCO: Catalytically oxidizes VOCs at low temperatures (usually 250~400℃) under the action of catalysts (such as platinum, palladium, and other precious metals), reducing the activation energy of the reaction.
2. Temperature and Energy Consumption
RTO: Requires maintaining high temperatures, with higher fuel consumption, suitable for treating high concentration waste gases (thermal energy can be self-sustained).
RCO: Due to the catalyst, operates at lower temperatures with significantly reduced energy consumption, suitable for medium to low concentration waste gases.
3. Applicable Conditions
RTO:
Suitable for treating high concentrations (usually >1.5g/m³), complex components (such as sulfur, halogens, etc. that may poison catalysts).
High temperature resistant, but requires fuel supplementation for low concentration waste gases, with poorer economic efficiency.
RCO:
Suitable for medium to low concentration waste gases (0.5~10g/m³), with components non-toxic to catalysts (such as benzene, ketones).
If the waste gas contains dust, heavy metals, sulfur/phosphorus compounds, etc., it easily causes catalyst poisoning and failure.
4. Equipment Structure and Cost
RTO:
Simple structure, no catalyst bed, but requires high-temperature resistant materials (such as ceramic regenerative media).
Lower initial investment, but operating costs (fuel) may be higher.
RCO:
Requires a catalyst bed, more complex structure, catalyst needs periodic replacement (lifetime usually 2~5 years).
Initial investment is higher (catalyst cost), but long-term operation has low energy consumption.
5. Treatment Efficiency
Both can achieve over 95% purification rate, but RCO is more efficient at low temperatures, while RTO is more adaptable to high concentration waste gas.
6. Safety and By-products
RTO: High temperatures may produce NOx (combustion temperature needs to be controlled); suitable for treating flammable waste gas (requires explosion-proof design).
RCO: Low temperature reduces NOx formation, but the catalyst may cause selective side reactions (such as halogenated hydrocarbons generating dioxins).
Selection Recommendations
Choose RTO: high waste gas concentration, complex composition (including catalyst poisons), need to treat large flow rates.
Choose RCO: medium waste gas concentration, simple composition, requires low energy consumption or low temperature operation (e.g., sensitive facilities nearby).
If waste gas concentration fluctuates greatly, combine the advantages of both by using an RTO+RCO combined process.
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Telephone: +86-135-8959-1050 E-mail: [email protected]
Address: Jurong East Road, Huantai Industrial Park, Zibo City, Shandong Province
