Thermal oxidation with regenerative heat recovery (RTO) for foam rubber production

Posing the tasks

In order to prevent odour emissions from escaping to the neighbourhood and for compliance with official limit levels, exhaust gasses from multiple vulcanisation channels must be cleaned. Due to the tendency towards condensate formation of softener vapours, the systems would have to be laid out in such a manner that they could be operated without manual intervention for the cleaning work.

Solution / Highlights

In order to maintain the required raw gas values while maintaining preferably low operating costs, the 3-chamber RTO system, model ROXITHERM RTK represents the most economical solution to the exhaust air problem.

The very highly oxidable softener vapours tend heavily toward liquid or encrusted caking accumulations in the raw gas feed lines and in the inlet area of the regenerative heat exchanger. In order to clean these automatically during ongoing operations, the system is outfitted with a "burn-out" function, which thermally disintegrates the accumulations. In order to prevent low temperature carbonization gasses emissions, the system is outfitted with a low temperature carbonization gas return, which directs these to the combustion chamber of oxidation.