Abbas Kebritchi - Engineering Faculty, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran.
Mehdi Nekoomanesh Haghighi - Engineering Faculty, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran.

The rapid rate of plastic consumption throughout the world and low service life of all plastics has led to the creation of increasing amounts of waste [1-2]. There are several methodsfor disposal of plastic waste, i.e. landfill, incineration (energy recovery), true material recycling (similar recycled product or monomer recovery), and chemical recovery [3]. One of the most useful ways of chemical recovery is catalytic pyrolysis.In which polymer chains break down into useful lowermolecular weight compounds [4]. In present work the effect of Catalyst to Polymer ratio (C/P) on catalytic pyrolysis behavior of LDPE over used FCC has been investigated