Thermal oxidation with regenerative heat recovery (RTO) for textile coating

Posing the tasks

The European solvent directive and its implementation in the 31st BImSchV obligated the manufacturer of synthetic leather products in Poland to clean hydrocarbon-laden exhaust air, which escapes during the band coating process.

The exhaust air had been cleaned via a thermal recuperative post-combustion system up to that point, which, do to its age, could no longer be deployed and exhibited an extremely high energy consumption.

Solution / Highlights

The 3-chamber RTO system, model ROXITHERM RTK, proved to be the most economical solution to the exhaust air problem for the exhaust air volumes and contaminant composition emitted in the production process.

As the exhaust air contains softeners, which can cause caked accumulations in the inlet area of the heat reservoir and result in system clogging of the system, the system is outfitted with a "burn-out" function, which makes it possible to vaporise these caked accumulations.