In the present study the energetic valorization of electric cable shredder residues (mixed plastics) has been investigated. Thermochemical conversion by means of High-Temperature Steam Gasification (HTSG) and High-Temperature Pyrolysis (HTP) was studied. The effects of temperature and reaction time - process parameters -were investigated. Comparison of the results showed that HTSG seems a more suitable process in terms of produced syngas quality (64%. v/v and 13 MJ/Nm(3)) than HTP because of higher H-2 yield and lower tar content. (C) 2009 Elsevier B.V. All rights reserved.