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GASOLINES AND DIESEL FUELS FROM POLYMERIC MATERIALS

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Author(s): Božena Mlynková | Martin Bajus | Elena Hájeková | Gabriel Kostrab | Dušan Mravec

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 51;
Issue: 1;
Start page: 18;
Date: 2009;
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Keywords: Thermal cracking | Polymers | Oils/waxes | Gasolines | Diesel fuels.

ABSTRACT
Our work presents an overview of the use of oils/waxes obtained from thermal cracking of simulatedwaste plastics for production of automotive gasolines and diesel fuels. Experiments of simulatedwaste polymers thermal cracking in a batch reactor were carried out. Thermal cracking wasrealised at the temperature 450°C. The principal process products, gaseous and liquid hydrocarbonfractions are similar to the refinery cracking products.Liquid cracking products are unstable due to the olefins content and their chemical composition andproperties strongly depend on the applied feed composition. Gasoline and diesel fuel fractions havebeen hydrogenated over Pd/C catalyst. Bromine numbers of the hydrogenated fuels were decreasedto the value in range 0.02 to 6,9 g Br2/100g of the sample.The octane numbers (RON) before hydrogenation of gasoline were in the range 80.5 to 93.4. Afterhydrogenation of gasoline the RON decreased to the range 61,0 to 93,6. The diesel indexes (DI) forprimary diesel fuel were in the range 74,4 to 75,6. After hydrogenation of diesel fuels the DI increasedup to the range 98,2 to 104,9.
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