The objective of this research was to convert a waste plastic into liquid fuel using zeolite X catalyst which it was synthesized from coal fly ash. In this study, 100 grams of polypropylene-type plastic were cracked in a batch reactor at 350 400 and 450o C for 60 minutes with various catalyst/plastic ratios was 0.5; 1.0;1.5 (wt%). Highest yield (%) was 76.09% that obtained at 450o C and catalyst/plastic ratio was 1.5%.Keywords : Cracking, Liquid fuel, Polypropylene, Waste plastic, Zeolite X
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