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Hydrodesulfurization of jet fuel by pre-saturated one-liquid-flow technology for mobile fuel cell applications

Titelangaben

Latz, J. ; Peters, R. ; Pasel, Joachim ; Datsevich, Leonid ; Jess, Andreas:
Hydrodesulfurization of jet fuel by pre-saturated one-liquid-flow technology for mobile fuel cell applications.
In: Chemical Engineering Science. Bd. 64 (2009) Heft 2 . - S. 288-293.
ISSN 0009-2509
DOI: https://doi.org/10.1016/j.ces.2008.10.016

Volltext

Link zum Volltext (externe URL): Volltext

Abstract

To prevent the catalysts in fuel cell systems from poisoning by sulfur containing substances the fuel to be used must be desulfurized to a maximum of 10 ppm of sulfur. Thereby, damage to the catalysts in the fuel cell and the reformer can be avoided. Diesel fuel for road vehicles within the EU is already desulfurized at the refinery. However, jet fuel is permitted to have up to 3000 ppm of sulfur. Since the hydrodesulfurization process used in refineries is not suitable for mobile applications, the aim of the present work was to develop an alternative desulfurization process for jet fuel and to determine its technical feasibility. To this end, many processes were assessed with respect to their application in fuel cell based auxiliary power units (APUs). Among them, hydrodesulfurization with pre-saturation was selected for detailed investigations. Laboratory tests revealed that also syngas operation is possible without any performance loss in comparison to operation with hydrogen. Pure hydrogen is not available in a fuel cell system based on reforming of jet fuel. The effects of reaction temperature, operating pressure and liquid hourly space velocity (LHSV) were investigated. Different jet fuel qualities with up to 3000 ppm of sulfur were desulfurized to a level of 15–22 ppm. Finally, the technical applicability of hydrodesulfurization with pre-saturation was demonstrated in a pilot plant with an electrical power of 5 kW, going beyond the laboratory scale. In a 200-h experiment, a commercial jet fuel with 712 ppm of sulfur was desulfurized to a maximum sulfur content of 10 ppm. Besides this, H2S separation by stripping with air turned out to be a suitable method for APU applications. The aim of developing a suitable process for the desulfurization of jet fuel in fuel cell APUs has thus been achieved.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Desulfurization; Jet fuel; Catalysis; Chemical processes; Multiphase processes;
Multiphase reactions
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Chemische Verfahrenstechnik
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Chemische Verfahrenstechnik > Lehrstuhl Chemische Verfahrenstechnik - Univ.-Prof. Dr.-Ing. Andreas Jess
Forschungseinrichtungen > Forschungsstellen > ZET - Zentrum für Energietechnik
Forschungseinrichtungen
Forschungseinrichtungen > Forschungsstellen
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
600 Technik, Medizin, angewandte Wissenschaften > 660 Chemische Verfahrenstechnik
Eingestellt am: 22 Jan 2015 08:20
Letzte Änderung: 17 Mai 2017 07:31
URI: https://eref.uni-bayreuth.de/id/eprint/5825