The Research Institute of Sweden, RISE, has teamed up with Swedish recyclers Scandinavian Enviro Systems and Ragn-Sells to study the ways how scrap tires can be used in production of pyrolysis oil; the conjoint project is supported by the Swedish government agency, Vinnova.

The new project is set to study three methods used to upgrade tire pyrolysis oil and find the ways how even more refined products can be made; the key emphasis is laid on the process of adding fossil raw materials into the alternative fuels to upgrade them.

RISE tests will be used to carry out the research at laboratories in Piteå and Södertälje, Sweden.

With scrap tires, the world receives both problems and interesting possibilities, for instance, application of crumb rubber in artificial turf, or use of scrap tires as an energy source. Nevertheless, some researchers believe that scrap tires can provide even more value, however this type of waste requires further study. Today, many countries, especially developing ones, are being faced with huge accumulations of scrap tires.

As part of the new Scandinavian project, Ragn-Sells, will be responsible for tire collection and recycling in the country.

At a plant operated by Enviro in the city of Asensbruk, waste tires undergo the process of pyrolysis, which allows to extract oil, gas, carbon black and steel out of them. Today, rubber industry purchases Enviro’s recovered carbon black due to its top quality.

The pyrolysis oil is very similar to fossil fuel; thus, it may partly substitute it one day. Moreover, it is at some extent bio based, as tires contain natural rubber. Additionally, Enviro’s pyrolysis oil is made almost of 50% bio-oil.

According to the research manager Linda Sandström, the first outcomes showed great promise, and her team is hopeful that the study is set to find sustainable solutions for successful tire recovery, capable of diminishing the level of fossil fuels consumed.

Article by Enviro