Thermal oxidation is a process used, with wonderful results, for the thermal oxidation of air streams containing unstable organic pollution (VOCs). The thermal oxidation is carried out within a combustion chamber the place the pollutants inside the effluent to be handled are burned, typically decomposing them into carbon dioxide (CO2) and water vapor (H2O).
Thermal oxidation: types and working principles
The thermal oxidation process, as a consequence of high temperature, it’s proposed to remodel the dangerous elements into harmless carbon dioxide (CO2) and water vapor (H2O).
There are several machines to realize thermal oxidation and the choice is based on a number of features such as the concentration of the pollutants to be treated and the level of thermal efficiency to be obtained. The attainable machines are:
Direct fired thermal Oxidizer:
It is a thermal oxidizer with out heat recovery. In follow it’s a suitable designed combustion chamber, outfitted with a burner, which thermally oxidized pollutants. On the finish of the chamber, we can insert totally different types of warmth recovery based mostly on the need of the client (usually warmth recovery on thermal oil, water to provide steam or other heating recovery production).
Thermal recuperative Oxidizer:
It is a thermal oxidizer with heat exchanger. It’s in-built such a way that the effluent incoming is heated up from the flue gases with the intention to contain the consumption of auxiliary fuel. Further is feasible to make the most of the residual warmth in the flue gases putting in a second warmth exchanger for air or for water as needed.
Regenerative thermal Oxidizer:
It’s a thermal oxidizer where the heat exchanger for heat recovery is regenerative type. A regenerative exchanger consisting of ceramic materials which, if suitably dimensioned, is able to reach thermal recovery efficiencies as much as ninety five%. The pollutants, may be oxidized reaching the autothermal condition of the system, meaning set to zero the auxiliary fuel consumption. Also in this case it’s potential to put in a ultimate warmth exchanger to the stack to recover again on air or on water.
Catalytic thermal Oxidizer:
It’s a thermal oxidizer that makes use of a suitable catalyst for the oxidation of the pollution that, in this manner, can happen at lower temperatures (about 300-four hundred ° C) maintaining comparable environmental efficiencies. To the system it is doable to mix a heat exchanger to extend the heat recovery additional limiting the auxiliary fuel consumption.
Only in the presence of halogenated compounds is feasible the formation of relative halogenated acid needing to insert within the purification process, downstream thermal oxidation, a wet abatement system through the usage of our scrubber wetclean.
Thermal oxidizer strengths
ensures the highest abatement rate, exceeding that required by worldwide standards;
it’s offered in modular units that permit a fast pre-assembly, minimizing the installation time at the set up site.
An heat exchanger may be designed, https://www.tksindustrial.com/thermal-oxidizer-projects with a purpose to recover wise heat from the output fumes. The wise heat recovered in this means can be used to warmth up air, water or diathermic oil, or can be used to obtain vapour.