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Regenerative Thermal Oxidizer (RTO)
key word: Regenerative Thermal Oxidizer (RTO)
Product Description
Overview
A Regenerative Thermal Oxidizer (RTO) is an energy-efficient, environmentally friendly device designed for the treatment of low- to medium-concentration volatile organic waste gases. Drawing on our company’s many years of experience in organic waste-gas treatment and incorporating advanced foreign technologies, we have successfully developed a new series of high-efficiency, energy-saving RTOs that produce no secondary pollution. This product line has been successfully deployed in numerous applications across relevant industries in China.
Working Principle
The principle is to heat the organic waste gas to above 760°C, causing the VOCs in the gas to undergo oxidative decomposition into carbon dioxide and water. The high-temperature gases produced by oxidation then flow through ceramic heat-storage units, raising the temperature of the ceramics and “storing” heat. This stored heat is subsequently used to preheat the incoming organic waste gas, thereby reducing fuel consumption for heating the gas. The ceramic heat-storage units should be divided into two or more chambers, with each chamber sequentially undergoing heat storage, heat release, and cleaning cycles in a continuous, cyclical operation.
Uses
1. Paint production and coating/painting.
2. Petroleum and chemical industries (e.g., fine chemicals, rubber, synthetic fibers).
3. Printing and dyeing (e.g., metal printing, paper printing).
4. Electronic components and wires.
5. Pharmaceutical industry.
6. The exhaust gas contains substances that are toxic to the catalyst (e.g., metallic vapors of mercury, lead, tin, zinc, etc., as well as phosphorus, phosphides, arsenic, halogens, and others).
Performance Features
The RTO’s main structure comprises a combustion chamber, heat-storage chambers, and inlet and outlet air passages. The regenerative ceramic packing bed in this unit enables maximum heat recovery, with a thermal efficiency exceeding 95%. Compared with conventional catalytic combustion systems and direct-fired thermal oxidizers (TO), the RTO offers superior thermal efficiency (≥95%), lower operating costs, and the ability to treat exhaust gases across low, medium, and high concentration ranges. When the pollutant concentration is ≥2,500 mg/m³, the furnace can sustain self-ignition without the need for burner heating, thereby significantly reducing production and operational expenses.
1. High purification efficiency: two-bed RTOs achieve a purification efficiency of over 95%, while three-bed RTOs achieve a purification efficiency of over 98%.
2. Advanced PLC technology is employed, resulting in a high degree of system automation.
3. The system equipment is compact and occupies a small footprint.
4. Simple operation and maintenance, with low operating costs.
5. Strong adaptability, stable operation, and high safety.
6. Low fuel consumption, or even no fuel required.
7. Highly efficient and advanced heat exchange system with minimal heat loss.
8. Does not generate secondary pollutants such as NOx.
9. Long service life and easy maintenance.
Process Flow and Selection
Process Flow Diagram (Taking a Three-Chamber RTO as an Example)
Parameters and Standards
Model |
RTO-1000 |
RTO-1500 |
RTO-2000 |
RTO-3000 |
RTO-4000 |
RTO-5000 |
|
Rated Purification Flow Rate (Nm³/h) |
10000 |
15000 |
20000 |
30000 |
40000 |
50000 |
|
Object to be processed |
VOCs such as benzene, alcohols, ethers, aldehydes, phenols, ketones, and esters |
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Exhaust gas concentration mg/Nm³ |
1000 mg/Nm³ ≤ concentration ≤ 25% LEL |
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Purification rate (%) |
≥95% (two-room unit) ≥98% (three-room unit) |
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Heat Storage Efficiency (%) |
≥95% |
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Operating Temperature (°C) |
≥760℃ |
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Heat storage unit model |
MLM plate-type/honeycomb pore type |
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Chamber surface temperature |
≤50℃ |
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Oxidation chamber residence time |
≥1S |
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Burner heating capacity (×10⁴ kcal/h) |
50 |
70 |
100 |
140 |
190 |
240 |
|
Fuel consumption (m³/h) |
Upon startup |
~59 |
~83 |
~119 |
~166 |
~226 |
~285 |
Normal operation |
The operating mode is determined based on the exhaust gas concentration: when the benzene-series compound concentration reaches or exceeds 2,500 mg/Nm³, autoignition can be sustained within the furnace, allowing the burner to be shut down. |
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Pressure Loss Due to Wind (Pa) |
≤3000 |
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Quotation, Sales Hotline:0514-80913965 / 80913966
After-sales service:0514-80913977 / 80913979
Sales Hotline:0514-80913965 / 80913999
Technical Support:0514-80913952 / 80913953
Sales Fax:0514-80913999/86166402
Production base: Zhenwu Town, Jiangdu District, Yangzhou City, Jiangsu Province (Binhu)
Group Headquarters: Taishan East Road, Jiangdu District, Yangzhou City
Company E-mail:tianyugroup@vip.163.com
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