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Edward Lowton
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ARTICLE
Regenerative Oxidisers
23 April 2025
Regenerative Oxidisers are used where there is no requirement for heat recovery, or the amount of heat that can be recovered is too small to justify a Thermal Recovery Oxidiser. They are also well suited to processes that discharge high volumes of exhaust with relatively low VOC content.

The VOC laden air from the process is drawn into the Oxidiser by means of a variable speed controlled effluent transport fan. The effluent is heated in the incoming tower, passed through the combustion chamber and cooled in the exit tower, each of which is filled with a specialist ceramic material.
Advantages of Regenerative Oxidisers
- As effective as Recuperative Thermal Oxidiser, with lower NOx emissions
- Suited to high flow, low VOC content exhaust streams
- Continuous control of the emissions
- Simple management of operation
- Reduced maintenance
- Reduced gas/fuel consumption
- Self-contained plant which doesn’t produce waste or heat requiring recovery
- Range from 1,000 to 150,000 Nm³/h
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