COMPUTER AIDED MODELLING OF LOW DENSITY POLYETHYLENE PYROLYSIS TO PRODUCE SYNTHETIC FUELS.

Authors

  • AG Adeniyi DEPARTMENT OF CHEMICAL ENGINEERING, UNIVERSITY OF ILORIN, ILORIN, KWARA STATE. NIGERIA.
  • OAA Eletta DEPARTMENT OF CHEMICAL ENGINEERING, UNIVERSITY OF ILORIN, ILORIN, KWARA STATE. NIGERIA.
  • JO Ighalo DEPARTMENT OF CHEMICAL ENGINEERING, UNIVERSITY OF ILORIN, ILORIN, KWARA STATE. NIGERIA.

DOI:

https://doi.org/10.4314/njt.374.1855

Keywords:

Pyrolysis, Simulation, LDPE, Synthetic fuels, Aspen HYSYS

Abstract

The pyrolysis of waste low-density polyethylene (LDPE) is an excellent method of converting waste materials into useful products. Aspen HYSYS 2006 was used to develop a computational steady-state model to simulate the pyrolysis of LDPE. The Peng-Robinson fluid package was used for the simulation. A continuous stirred tank reactor with an Arrhenius kinetic expression was used to predict reaction extent and product yield.  At a pyrolysis temperature of 4500C and atmospheric pressure, 92.88% liquid yield was obtained. From the given feedstock, the char obtained was composed of only elemental carbon. The synthesis gas was composed mainly Hydrogen and C1-C4 hydrocarbons with traces of n-C5 and n-C6. The Pyrolysis oil was composed of higher hydrocarbon fractions (C8-C24). The conversion-temperature relationships from the simulation are in good agreement with experimental results. This proved that pyrolysis of waste LDPE can give an excellent yield of liquid product and is a viable recycling technique.

 

http://dx.doi.org/10.4314/njt.v37i4.12

Downloads

Published

2018-09-30

Issue

Section

Chemical, Industrial, Materials, Mechanical, Metallurgical, Petroleum & Production Engineering

How to Cite

COMPUTER AIDED MODELLING OF LOW DENSITY POLYETHYLENE PYROLYSIS TO PRODUCE SYNTHETIC FUELS. (2018). Nigerian Journal of Technology, 37(4), 945-949. https://doi.org/10.4314/njt.374.1855