PROGRAMME

Sustainable supply of raw materials

The innovative method of testing solid fuels as an answer to safe and sustainable supply of raw materials –the example of coking coal parameters

The metallurgical coal (coking coal) has been defined as the critical raw material (CRM) in the European Union. Using that type of coal in the coking plants allows it to produce high quality steel and steel products in steel mill around the world. Coking the metallurgical coal is a really complex and demanding process. The formation of coke with high strength and appropriate reactivity depends on the composition and coking properties of the mixture. Coke reactivity testing is recognized as the primary measure of coke quality. The most important and reliable indicators are CRI (coke reactivity index) and CSR (coke strength after reactivity). The most expected values are low CRI and high CSR results. To choose a correct and safe mixture of metallurgical coals to coking procedure, an adequate tests need to be done. The CLP-B Laboratory invented and implemented a new tool that allows to calculate the possibility of adverse reaction occurrence in coking chamber based on CRI/CSR and other coals parameters.