Chemical Catalyzed Recycling of Polymers: Catalytic Conversion of PE, PP and PS into Fuels and Chemicals over H-Y

In the following study the termocatalytic degradation of polyethylene of high and low density, (HDPE, LDPE), polypropylene (PP) and polyestyrene (PS) on the H-Y zeolite was performed. The catalytic activity was carried out in a batch reactor at 500 degrees C. The reaction time was 43,75 min. Liquid product yields ranged from similar to 42 and similar to 44% wt% for polyethylenes and PP, while the production of PS showed similar to 71 wt%. The gaseous products ranged between similar to 46 and similar to 52 for PE and PP and similar to 24 wt% for PS. The PP generated the greatest amount of carbonaceous residues (similar to 10 wt%) whereas the LDPE produced the lowest (similar to 4 wt%). (C) 2015 Published by Elsevier Ltd.