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BIOETP - Model 5000 -Regenerative Thermal Oxidizer (RTO) Incinerator
Regenerative Thermal Oxidizer(RTO) is a kind of organic waste gas treatment equipment for medium and high concentration. The regenerative incinerator oxidizes the organic matter (VOCs) in the waste gas into corresponding carbon dioxide and water at high temperature, thereby purifying the waste gas and recovering the heat released when the waste gas is decomposed. The three-chamber RTO waste gas decomposition efficiency reaches more than 99%. The heat recovery efficiency reaches more than 95%, the operating cost is low, and it can handle low-concentration exhaust gas with large air volume. When the concentration is slightly higher, it can also perform secondary waste heat recovery, which greatly reduces production and operation costs. The main structure of RTO is composed of combustion chamber, regenerator and switching valve.Coating industry, Printing industry, Painting industry, Pharmaceutical Chemicals, Paint and ink manufacturing, Circuit board production etc.
The exhaust gas with VOC enters the RTO. In the preheating chamber, the honeycomb ceramic body preheats the exhaust gas to above 760°C, and stays in the oxidation chamber for about 1.0s. VOC is oxidized into carbon dioxide (CO2) and water (H2O) by oxygen in a high temperature environment. , heat is released during the oxidation process, which further increases the temperature of the exhaust gas. The burner controls the minimum temperature of the oxidation chamber to not be lower than 820°C, and then passes through the regenerator, and the ceramic body absorbs the heat of the high-temperature gas to prepare for the next cycle to preheat the exhaust gas. , the cooled flue gas is discharged from the chimney to the atmosphere.
Each regenerator goes through the process of heat storage-release-purge in turn, reciprocating and working continuously; due to the existence of the third chamber, the switching of airflow is more stable. Part of the treated clean exhaust is replaced by VOC before the blower, and the regenerator is purged. After the cleaning is completed, it enters the heat storage program, which eliminates the instantaneous direct discharge state of the two-chamber RTO, making the purification efficiency reach More than 99%.
1. VOC removal rate: 95% to 99%, heat exchange efficiency up to 95%;
2. Processing capacity: the three-chamber RTO can handle air volume up to 100,000Nm3/h
3. Treatment concentration:
Safe operating concentration: below 18%LEL;
Stable operating concentration: below 9%LEL;
Heat balance concentration: 3.5%LEL~4.5%LEL;
Economic benefit concentration: 4.5%LEL~9%LEL, can be used for heat recovery;
Non-economic concentration: 3.5%LEL~2.5%LEL, need to add a certain amount of gas
4. System resistance: 5000pa.
5. Operating temperature:
Heating temperature: ambient temperature ~820°C
Normal operating temperature: 820°C~850°C
Turn off the burner temperature: 850°C
Overtemperature release temperature: 870°C
Shutdown temperature: 900°C (alarm at 890°C)
6. Component configuration:
Horizontal push or lift switching valve, leakage rate 0.1%, valve plate is stainless steel, generally 304 grade, and 316 or duplex steel is configured according to needs;
High refractory aluminum silicate fiber insulation layer in the oxidation chamber and regenerator chamber, the maximum working temperature is 1260°C; the outer surface temperature ≤ ambient temperature +45°C
Heating device: gas, oil burner or electric heater
7. Operability: high degree of automation, low maintenance cost, no secondary pollution such as thermal NOx;