Due to its properties, rubber is a versatile used material – from industry applications such as conveyer belts and tank tracks, hoses and wires up to household articles such as rubber band for preservation of food. The most well-known and quantitative biggest representative for this type of waste are scrap tires. In Germany alone, over 600,000 metric tons of scrap tires incur within a year.

Until now scrap tires are mainly retreaded (if possible), burned (e.g. in cement mills), or shredded to end up as a floor cover, for instance.

An obviously more effective usage of scrap tires and other rubber waste is a material utilization or, in other words, real recycling. »Material utilization« in this context means to decompose rubber into its components to produce final goods. These goods are products to sell as secondary raw material or market as an alternative product or fed to the energy cycle.

This kind of recycling is realized with the CRS-BERAHN®. Using a pyrolysis process the rubber is decomposed in its components. In the process carbon, pyrolysis-oil, and residual gas are extracted. As far as metals are combined with the rubber, such as spring steel and clincher ring within tires, it is taken out of the process, too, with no changes in its structure. Besides, it is irrelevant if the rubber is vulcanized or not.

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