الفهرس 
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Abstract
The Technological advancements over the last century have leaded large and continuous growth in the output of plastic materials. This exponential growth has created public concern over the environmental impact caused by the polymeric waste produced. These have acted as driving forces for a lot of current research aimed at the development of plastic recycle processes. As a result, the conversion of plastic waste to useful products is gaining increasing attention.
The aim of this work is converting plastic wastes into liquid fuel .main attention is given to gasoline because of its high market demand.
Additionally, contribution in solving the environmental problem .since the amount of e plastic wastes is continuously increasing around the world. This poses a threat to the environment because of their large quantity and disposal problem as thermoplastics do not biodegrade for a very long time. To achieve this goal, the parameters effect on the polymer chain degradation was studied such as type of Nano catalyst and amount of catalyst effects. The first stage of this investigation aimed to convert plastic wastes material to fuel oil by thermal cracking process.
The next stage of the study involved an investigation of the conversion by catalyst and Nano catalyst. Finally, Gas chromatography/mass spectrometry (GC/MS) apparatus was used for analysis the composition of fuel hydrocarbon products.