Identification and Characterisation of Major Hydrocarbons in Thermally Degraded Low Density Polyethylene Films
No Thumbnail Available
Date
2017-10
Journal Title
Journal ISSN
Volume Title
Publisher
University of Port Harcourt
Abstract
The vast application of Low Density Polyethylene (LDPE) in packaging, greenhouses, homes etc has led to its huge accumulation as a municipal solid waste with monumental health, economic and environmental
consequences. Since these are non-biodegradable and their photodegradation occurs only over a very long period, their economic conversion to energy products through pyrolysis is the thrust of this study. LDPE sample collected from the University of Ilorin Community was thermally degraded in a pyrolyser at temperatures ranging from 203 – 400 oC. The products of pyrolysis were in three (3) states of matter and both the liquid and solid products were analysed using FTIR to determine the functional groups and GC- MS for the hydrocarbons present in the products. For the GC-MS analysis, the peaks that had 90% above quality when compared with the compounds in the installed NIST11 library were reported. There were alkanes, alkenes, halogenated alkanes, and very few aromatics in the liquid product and, the hydrocarbons were observed to range between C10 - C27. The FTIR and GC-MS results show the potential of the oil obtained as renewable source of energy while that for residue shows its inherent energy content. The liquid product was refluxed over molecular sieve catalyst (US 2882244A) and the calorific value was found to increase from 13,974 kJ/kg to 15,815.52 kJ/kg and this is found to be comparable to the range for lignite and dry wood.
Description
Keywords
environmental pollution, solid wastes, LDPE, pyrolysis, hydrocarbons, Calorific value
Citation
Eletta, O.A.A., Ajayi, O.A., Ogunleye, O. O., Tijani, I.A., Adeniyi, A.G. & Agbana, A.S. (2017): Identification and characterization of major hydrocarbons in thermally degraded low density polyethylene films. Journal of Applied Science and Environmental Management. 21(6); 1111- 1117,