期刊
WASTE MANAGEMENT
卷 58, 期 -, 页码 250-259出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2016.09.023
关键词
Municipal plastic waste; Pyrolysis; Polystyrene (PS) plastic; Liquid oil; Batch pyrolysis reactor
资金
- Ministry of Education, Saudi Arabia [1/S/1433]
- Science Foundation Ireland (SFI) [12/RC/2302]
- ERVIA, Gas Networks Ireland (GNI) through the Gas Innovation Group
This paper aims to investigate the effect of temperature and reaction time on the yield and quality of liquid oil produced from a pyrolysis process. Polystyrene (PS) type plastic waste was used as a feedstock in a small pilot scale batch pyrolysis reactor. At 400 degrees C with a reaction time of 75 min, the gas yield was 8% by mass, the char yield was 16% by mass, while the liquid oil yield was 76% by mass. Raising the temperature to 450 degrees C increased the gas production to 13% by mass, reduced the char production to 6.2% and increased the liquid oil yield to 80.8% by mass. The optimum temperature and reaction time was found to be 450 degrees C and 75 min. The liquid oil at optimum conditions had a dynamic viscosity of 1.77 mPa s, kinematic viscosity of 1.92 cSt, a density of 0.92 g/cm(3), a pour point of -60 degrees C, a freezing point of -64 degrees C, a flash point of 30.2 degrees C and a high heating value (HHV) of 41.6 MJ/kg this is similar to conventional diesel. The gas chromatography with mass spectrophotometry (GC-MS) analysis showed that liquid oil contains mainly styrene (48%), toluene (26%) and ethyl-benzene (21%) compounds. (C) 2016 Elsevier Ltd. All rights reserved.
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