July 22, 2025 Report Open Access

Mequanintie Gebeyehu

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  <identifier identifierType="DOI">10.20372/nadre:11753</identifier>
  <creators>
    <creator>
      <creatorName>Mequanintie Gebeyehu</creatorName>
      <affiliation>Mekdela Amba University</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Synthesis and Characterization of Liquid Fuels from Waste Plastic Polymers via Catalytic Pyrolysis in Case of Legambo Wereda, South Wollo, Ethiopia</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2025</publicationYear>
  <subjects>
    <subject>Catalytic Pyrolysis, FTIR, GC/MS, Silica-Alumina, Waste Plastics</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2025-07-22</date>
  </dates>
  <resourceType resourceTypeGeneral="Report"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://nadre.ethernet.edu.et/record/11753</alternateIdentifier>
  </alternateIdentifiers>
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    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.20372/nadre:11752</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/mau-community</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;The aim of this study was to convert HDPE and PET waste plastics into valuable hydrocarbon&lt;br&gt;
liquid fuel via catalytic pyrolysis technique using silica-alumina as a low-cost catalyst&lt;br&gt;
synthesized from rice husk and aluminum oxide. HDPE and PET waste plastics were&lt;br&gt;
catalytically degraded in a muffle furnace at a temperature of up to 450 &amp;deg;C using silica-alumina&lt;br&gt;
catalyst in catalytic pyrolysis of the same feedstock for optimum catalyst-to-plastic ratio of 1:3&lt;br&gt;
according to literatures. Optimum yield was obtained at this catalyst-to-plastic ratio with a yield&lt;br&gt;
of 50.90, 6.10%, 43.00 wt% for liquid, solid and gaseous products, respectively for HDPE waste&lt;br&gt;
plastics whereas for PET only solid residue was obtained. The catalyst was characterized by&lt;br&gt;
XRD, FTIR and GC-MS. The ultimate and proximate analysis of the HDPE feed carried out&lt;br&gt;
gave combustible moisture content of 5.70 %, fixed carbon of 11.56%, Ash content of 10.05%,&lt;br&gt;
Volatile matter content of 72.69%, fixed carbon content of 11.56%, calorifc value of&lt;br&gt;
46.70 MJ/kg and elemental composition with carbon (83.65%), hydrogen (12.72%), oxygen&lt;br&gt;
(1.50%), sulphur (0.70%), chlorine (2.25%), and nitrogen (1.37%). The properties determined&lt;br&gt;
were density, viscosity, flash point, fire point, pour point, and calorific value for HDPE feed&lt;br&gt;
stock. Whereas, the ultimate and proximate analysis of PET feed gave moisture content of&lt;br&gt;
4.74%, ash content of 11.67%, volatile matter content of 73.53% and fixed carbon content of&lt;br&gt;
9.06%. The results suggest that catalytic pyrolysis produced liquid products for HDPE feed stock&lt;br&gt;
only, whose properties are comparable to conventional fuels (gasoline and diesel oil).&lt;/p&gt;</description>
    <description descriptionType="Other">Funded by Mekdela Amba University</description>
  </descriptions>
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