APPLICATION OF MULTI-CRITERIA OPTIMIZATION IN PYROLYSIS PROCESSING OF SELECTED WASTE MATERIALS

Thermal methods are perspective technologies that allow transforming some types of waste materials to the quality fuels or valuable chemical raw materials. This paper presents the preparation of samples of selected waste materials either for purposes of analytical identification or for realizing the series of experiments on built-up thermal unit, in reducing conditions. Selected types of waste were pyrolyzed to a final temperature 800 degrees C. Mass balance of the pyrolysis products, off-line analysis of the pyrolysis gas and analysis of the solid residue were performed after pyrolysis. Taking account of all the criteria (quality and quantity of gaseous and solid products) assessment has been conducted by multi-criteria optimization. The performed analysis shows that the examination of individual solution variants with regard to simultaneous effect of several optimization criteria provides information about general breadth of the issues, which undoubtedly contributes to the quality of the process.