General Information
    • ISSN: 2010-0264
    • Frequency: Bimonthly (2010-2014); Monthly (Since 2015)
    • DOI: 10.18178/IJESD
    • Editor-in-Chief: Prof. Richard Haynes
    • Executive Editor: Ms. Nancy Y. Liu
    • Abstracting/ Indexing: Chemical Abstracts Services (CAS), CABI, DOAJ, Ulrich Periodicals Directory, Engineering & Technology Digital Library, Electronic Journals Library, Crossref, ProQuest.
    • E-mail: ijesd@ejournal.net
  • Mar 15, 2017 News! [CFP] 2017 the annual meeting of IJESD Editorial Board, ACESD 2017, will be held in Tokyo, Japan during November 2-4, 2017.   [Click]
  • Mar 15, 2017 News! Vol. 8, No. 5 has been indexed by Crossref.
Editor-in-chief
The University of Queensland, Australia
It is my honor to be the editor-in-chief of IJESD. The journal publishes good papers in the field of environmental science and development.
IJESD 2012 Vol.3(3): 263-267 ISSN: 2010-0264
DOI: 10.7763/IJESD.2012.V3.228

Recovery of Valuable Chemicals from High Density Polyethylene (HDPE) Polymer: a Catalytic Approach for Plastic Waste Recycling

Muhammad N. Almustapha and John M. Andrésen

Abstract—A high density polyethylene (HDPE) polymer was catalytically degraded using two sulfate modified Zirconium catalysts in a fixed-bed reactor at 400OC with the aim of converting plastic wastes to obtain valuable and recyclable liquid products. The TGA results revealed that the onset of degradation was moved from 420OC for HDPE alone to less than 300OC in the presence of the catalysts. The catalysts improved the polymer degradation by achieving high conversion of about 99.8%. The two catalysts appeared to promote different product composition. CAT1 (7%SO3) was more selective to higher gaseous products (68%) and liquid (32%) of mainly aromatics, whereas CAT2 (3.5%SO3) promoted high liquid products (about 53%) of mainly olefinic compounds. It can be concluded that the catalysts can be used for catalytic conversion of plastic wastes to obtain valuable products, most especially CAT2 (3.5%SO3) which gave high liquid content that is composed of mainly olefinic, naphthenic and paraffinic compounds whose carbon number distribution is within the gasoline range. Thus, catalytic conversion using these catalysts may be use as an alternative method for recycling plastic wastes to more valuable and renewable energy sources.

Index Terms—Chemical recycling, fixed-bed reactor, HDPE polymer, plastic wastes, sulfate modified zirconium catalyst.

M. N. Almustapha is with Department of Pure and Applied Chemistry, Usmanu Danfodiyo University Sokoto, P.M.B 2346, Sokoto-Nigeria and currently a PhD candidate with the Department of Chemical and Environmental Engineering, University Nottingham, UK (email: enxmnal@nottinham.ac.uk,; nalmustapha@udusok.edu.ng).
J. M. Andresen is with the Department of Chemical and Environmental Engineering, University Nottingham, University Park, NG7 2RD, Nottingham, UK. (email: j.andresen@nottinham.ac.uk).

[PDF]

Cite: Muhammad N. Almustapha and John M. Andrésen, "Recovery of Valuable Chemicals from High Density Polyethylene (HDPE) Polymer: a Catalytic Approachfor Plastic Waste Recycling," International Journal of Environmental Science and Development vol. 3, no. 3, pp. 263-267, 2012.

Copyright © 2008-2016. International Journal of Environmental Science and Development. All rights reserved.
E-mail: ijesd@ejournal.net