Abstract
Over the last few years Fläkt Danmark A/S and associates have conducted extensive investigations on CFC-recovery and TDI-removal by absorption on AC (activated carbon) in soft foam production. The research has consisted of measurements at existing foaming lines, pilot plant tests on site and one semi-industrial application.
The research so far has yielded valuable information on several issues to be considered when designing full-scale CFC-recovery installations; for example:
Proper and cost-effective plant design, including the air extraction system and the AC-recovery system itself
Quality and quantity of the recovered product.
Carbon lifetime to be expected and TDI adsorption mechanism.
The information gathered so far forms a good basis for the design of full-scale CFC-recovery systems that will keep emissions of TDI and CFC well below the limits demanded by the environmental authorities, at a reasonable price. This paper gives a description of the research carried out so far and a few examples are included to illustrate the economic aspects of CFC-recovery.
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