Aminu, I, Nahil, MA and Williams, PT orcid.org/0000-0003-0401-9326 (2020) Hydrogen from Waste Plastics by Two-Stage Pyrolysis/Low-Temperature Plasma Catalytic Processing. Energy & Fuels, 34 (9). pp. 11679-11689. ISSN 0887-0624
Abstract
Hydrogen was produced from waste plastic (polyethylene) using a novel two-stage pyrolysis–low-temperature (250 °C) plasma catalytic steam reforming process. Pyrolysis of the polyethylene generated pyrolysis gases, which were catalytically steam-reformed in the presence of low-temperature non-thermal plasma (dielectric barrier discharge) to produce hydrogen gas. In the absence of a catalyst, increasing the plasma power resulted in a significant increase in the hydrogen yield. Different catalysts (Ni/Al2O3, Fe/Al2O3, Co/Al2O3, and Cu/Al2O3) were incorporated in the discharge region of the plasma reactor, and Ni/Al2O3 produced the highest yield of hydrogen at 1.5 mmol g–1plastic. The addition of steam to the plasma catalytic process was investigated at different steam weight hourly space velocities (WHSVs) using the Ni/Al2O3 catalyst. The addition of steam to promote catalytic steam reforming reactions resulted in a marked increase in the hydrogen yield, producing the highest hydrogen yield of 4.56 mmol g–1plastic at a WHSV of 4 g h–1 g–1catalyst.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 American Chemical Society. This is an author produced version of an article published in Energy & Fuels. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Hydrogen,Plastics,Catalysts,Plasma,Water |
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) |
Depositing User: | Symplectic Publications |
Date Deposited: | 27 Nov 2020 13:35 |
Last Modified: | 02 Sep 2021 00:38 |
Status: | Published |
Publisher: | American Chemical Society (ACS) |
Identification Number: | 10.1021/acs.energyfuels.0c02043 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:168392 |