Saad, JM, Nahil, MA and Williams, PT (2015) Influence of process conditions on syngas production from the thermal processing of waste high density polyethylene. Journal of Analytical and Applied Pyrolysis, 113. 35 - 40. ISSN 0165-2370
Abstract
A range of process conditions, including the type of reactor, the reacting atmosphere and the presence of catalyst, and their influence on the production of syngas, i.e. hydrogen and carbon monoxide, from the thermal processing of waste high density polyethylene (HDPE) has been investigated. Pyrolysis in the presence of nitrogen and in the presence of carbon dioxide, two-stage pyrolysis-steam reforming and carbon dioxide/catalysis process conditions were investigated in relation to gas composition and particularly hydrogen and carbon monoxide yield. The influence of addition of a Ni-Mg-Al catalyst in the second reactor was also investigated. It was found that a two-stage pyrolysis at 500 °C, followed by second stage reaction at 800 °C resulted in a significant increase in hydrogen production. With the addition of carbon dioxide, the two stage process also increased carbon monoxide yield in addition to hydrogen. Addition of steam into the second stage reactor with the carbon dioxide produced a further increase in hydrogen production. Also, the presence of a Ni-Mg-Al catalyst in the second reactor increased the amount of hydrogen and carbon monoxide produced.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014, Elsevier. This is an author produced version of a paper published in Journal of Analytical and Applied Pyrolysis. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | High-density polyethylene; Waste; Carbon dioxide reforming; Gasification; Catalyst; Hydrogen |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Research Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Oct 2015 14:42 |
Last Modified: | 29 Oct 2015 05:39 |
Published Version: | http://dx.doi.org/10.1016/j.jaap.2014.09.027 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jaap.2014.09.027 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:87464 |