compact TNV

Thermal afterburning - recuperative compact system

Efficient energy utilization is ensured by the integrated tube bundle heat exchangers. The compact design enables flexible integration into the production process and efficient energy recovery through recirculation into the process. The patented secondary air burner uses the processed air as combustion air, thereby significantly reducing energy consumption. Our basket burner is a versatile burner system that can be operated with natural gas, oil, liquid gas and other fuel or process gases. Conversion to other fuels is possible without any problems.

Operating principle

The TNV is a compact thermal flue gas cleaning system with an integrated recuperative heat exchanger. Essentially, the system consists of a central steel combustion chamber, a burner and a tubular heat exchanger arranged in a ring around the combustion chamber. The pollutant-laden exhaust air is extracted by a fan from the process and fed into the cleaning system. To reduce fuel consumption, the exhaust gas is preheated considerably by the integrated heat exchanger before the installed burner is used in order to reach the required reaction temperature. Oxidation of the pollutants takes place at a temperature of approximately 700 - 750°C. The purified flue gas then flows through the integrated heat exchanger again, transferring a large proportion of its energy to the pollutant-laden raw gas. The purified exhaust gas essentially contains O2, N2, CO2 and H2O and can be released into the atmosphere.

The purified exhaust air still contains energy that can be utilized by optional, customer-specific downstream heat exchangers (air, water, steam, thermal oil).

Industry solutions

Our highly efficient TNV systems are used in areas with:

low volume flows
high pollutant concentrations
need for thermal energy in the production process
or shorter production cycle times
processes with aerosol or particle formation

Typical areas of application are

Surface finishing/ protection
- Automotive industry
- Printing industry
- Coating processes

Technical data

Exhaust air volume	500 bis 30.000 Nm³/h
Heat exchanger efficiency up to	70 %
Pollutant concentration VOC (0- 25% UEG)	0 – 10 g/Nm³

Benefits

Wide range of applications that can be optimally adapted to customer or production-specific requirements
Optimized/low energy consumption
Can be integrated into the production system
The robust design ensures a very long lifetime
Low maintenance requirements
Easy accessibility and therefore good cleaning options
High potential for heat recovery with water, thermal oil, steam or air
No need for additional combustion air - the patented secondary air burner uses the preheated process exhaust air as combustion air and thus substantially reduces energy consumption.
Alternative fuels such as oil or liquid gas are possible
Suitable for processes with aerosol and particle formation (dust, ash, etc.)
Low space requirement due to the compact design and comparatively low weight
The system can be installed indoors/outdoors, horizontally/vertically, on a foundation/steel structure or on a roof

Further products

RTO

Our regenerative thermal oxidation is characterized by H&OUML; Even small pollutants & shy; concentrations ensure a autothermal operation, i.e. there is no additional heating energy. The modular design enables a wide range of applications.

Combustion chamber

Each combustion chamber is individually adapted to your process. It is the solution for complex exhaust air flows and challenging installation situations.

Catalytic post-combustion chamber

Due to the use of catalysts, the oxidation of pollutants can take place at lower temperatures and is therefore particularly energy-saving. Ask us whether your exhaust air is suitable for this.

DeNOx

If there is NOx in the exhaust air, the usual oxidation processes are not suitable. Selective catalytic reduction (SCR) or non-catalytic processes (SNCR) are used here.

Energy saver

For optimal utilization of the energy sources used, ENVIROTEC offers appropriate heat recovery units for all systems. By using this technology, an active contribution can be made to conserving resources and reducing CO2 emissions.

System Solutions

Based on experience, we look at systems holistically.
We design and build complete systems for industrial exhaust air and exhaust gas purification.
Turnkey, but also modularly possible.