Thermal oxidation is a process used, with excellent results, for the thermal oxidation of air streams containing risky natural pollution (VOCs). The thermal oxidizer: how it works oxidation is carried out within a combustion chamber the place the pollution inside the effluent to be treated are burned, usually decomposing them into carbon dioxide (CO2) and water vapor (H2O).
Thermal oxidation: types and working principles
The thermal oxidation process, because of high temperature, it is proposed to rework the dangerous components into harmless carbon dioxide (CO2) and water vapor (H2O).
There are several machines to realize thermal oxidation and the selection relies on a number of aspects such because the concentration of the pollution to be handled and the extent of thermal effectivity to be obtained. The potential machines are:
Direct fired thermal Oxidizer:
It’s a thermal oxidizer with out warmth recovery. In observe it’s a suitable designed combustion chamber, outfitted with a burner, which thermally oxidized pollutants. On the end of the chamber, we can insert totally different types of heat recovery based mostly on the necessity of the client (normally heat recovery on thermal oil, water to provide steam or other heating recovery manufacturing).
Thermal recuperative Oxidizer:
It is a thermal oxidizer with warmth exchanger. It is built in such a approach that the effluent incoming is heated up from the flue gases with a view 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 is a thermal oxidizer the place the heat exchanger for warmth 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 95%. The pollution, may be oxidized reaching the autothermal situation of the system, which means set to zero the auxiliary fuel consumption. Additionally in this case it’s potential to put in a last 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 pollutants that, in this approach, can occur at lower temperatures (about 300-400 ° C) maintaining comparable environmental efficiencies. To the system it is potential to mix a warmth exchanger to extend the warmth 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 by means of using our scrubber wetclean.
Thermal oxidizer strengths
ensures the highest abatement rate, exceeding that required by worldwide standards;
it’s offered in modular models that enable a rapid pre-assembly, minimizing the set up time at the set up site.
An heat exchanger may be designed, with the intention to recover sensible warmth from the output fumes. The wise warmth recovered in this means can be used to heat up air, water or diathermic oil, or can be used to acquire vapour.