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Catalysis for Sustainable Energy

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2084-6819
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Production of JET fuel containing molecules of high hydrogen content

Sz. Tomasek / Z. Varga / A. Holló / N. Miskolczi / J. Hancsók
Online erschienen: 22.12.2017 | DOI: https://doi.org/10.1515/cse-2017-0008

Abstract

The harmful effects of aviation can only be reduced by using alternative fuels with excellent burning properties and a high hydrogen content in the constituent molecules. Due to increasing plastic consumption the amount of the plastic waste is also higher. Despite the fact that landfill plastic waste has been steadily reduced, the present scenario is not satisfactory. Therefore, the aim of this study is to produce JET fuel containing an alternative component made from straight-run kerosene and the waste polyethylene cracking fraction. We carried out our experiments on a commercial NiMo/Al2O3/P catalyst at the following process parameters: T=200-300°C, P=40 bar, LHSV=1.0-3.0 h-1, hydrogen/hydrocarbon ratio= 400 Nm3/m3. We investigated the effects of the feedstocks and the process parameters on the product yields, the hydrodesulfurization and hydrodearomatization efficiencies, and the main product properties. The liquid product yields varied between 99.7-99.8%. As a result of the hydrogenation the sulfur (1-1780 mg/kg) and the aromatic contents (9.0-20.5%) of the obtained products and the values of their smoke points (26.0-34.7 mm) fulfilled the requirements of JET fuel standard. Additionally, the concentration of paraffins increased in the products and the burning properties were also improved. The freezing points of the products were higher than -47°C, therefore product blending is needed.

Keywords: alternative JET fuel; waste polyethylene; straight-run kerosene

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Artikelinformationen

Erhalten: 29.09.2017

Angenommen: 10.11.2017

Online erschienen: 22.12.2017

Erschienen im Druck: 20.12.2017


Quellenangabe: Catalysis for Sustainable Energy, Band 4, Heft 1, Seiten 52–58, ISSN (Online) 2084-6819, DOI: https://doi.org/10.1515/cse-2017-0008.

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© 2017. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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