Environmental Engineering Research

  • 제23권3호
  • /
  • Pages.250-257
  • /
  • 2018
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  • 1226-1025(pISSN)
  • /
  • 2005-968X(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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New composites based on low-density polyethylene and rice husk: Elemental and thermal characteristics

  • Anshar, Muhammad (Department of Mechanical Engineering, State Polytechnic of Ujung Pandang) ;
  • Tahir, Dahlang (Department of Physics, Hasanuddin University) ;
  • Makhrani, Makhrani (Department of Physics, Hasanuddin University) ;
  • Ani, Farid Nasir (Department of Thermodynamics and Fluid Mechanics, Universiti Teknologi Malaysia) ;
  • Kader, Ab Saman (Marine Technology Centre, Universiti Teknolgi Malaysia)
  • 투고 : 2017.07.26
  • 심사 : 2018.02.06
  • 발행 : 2018.09.30
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초록

We developed new composites by combining the solid waste from Low-Density Polyethylene in the form of plastic bag (PB) and biomass from rice husk (RH),in the form of $(RH)_x(PB)_{1-x}$ (x = (1, 0.9, 0.7, 0.5)), as alternative fuels for electrical energy sources, and for providing the best solution to reduce environmental pollution. Elemental compositions were obtained by using proximate analysis, ultimate analysis, and X-ray fluorescence spectroscopy, and the thermal characteristics were obtained from thermogravimetric analysis. The compositions of carbon and hydrogen from the ultimate analysis show significant increases of 20-30% with increasing PB in the composite. The activation energy for RH is 101.22 kJ/mol; for x = 0.9 and 0.7, this increases by 4 and 6 magnitude, respectively, and for x = 0.5, shows remarkable increase to 165.30 kJ/mol. The range of temperature of about $480-660^{\circ}C$ is required for combustion of the composites $(RH)_x(PB)_{1-x}$ (x = (1, 0.9, 0.7, 0.5)) to perform the complete combustion process and produce high energy. In addition, the calorific value was determined by using bomb calorimetry, and shows value for RH of 13.44 MJ/kg, which increases about 30-40% with increasing PB content, indicating that PB has a strong effect of increasing the energy realized to generate electricity.

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  2. Wax Recovery from the Pyrolysis of Virgin and Waste Plastics vol.60, pp.22, 2018, https://doi.org/10.1021/acs.iecr.1c01176