Effect of Reactive Sulfur Removal by Activated Carbon on Aviation Fuel Thermal Stability

Research output: Contribution to journalArticlepeer-review


  • Ehsan Alborzi
  • Christopher M. Parks
  • Phil Gadsby
  • Abdolkarim Sheikhansari
  • Mohammed Pourkashanian

Colleges, School and Institutes

External organisations

  • The University of Sheffield
  • Department of Mechanical Engineering


The effect of reactive sulfur removal from a Jet A-1 fuel with marginal thermal stability on surface deposition propensity is reported. The sulfur removal was achieved through adsorptive treatment of the fuel with activated carbon. The treated fuel was assessed for surface deposition propensity using a high Reynolds thermal stability test device. It was found that activated carbon has a strong adsorption capacity for the removal of reactive sulfur and Fe components from the fuel. This resulted in a substantial reduction of the surface deposition propensity of the Jet A-1 fuel. Density functional theory was used to investigate the role of reactive sulfur and Fe on thermal oxidative stability. Mechanistic pathways for intervention of this class of species with hydroperoxides are proposed.

Bibliographic note

Funding Information: This work was supported by the Horizon 2020-Clean Sky 2 programme under research grant agreement 145251. The authors acknowledge Dr.Nicolas Grosejan of Johnson Matthey for solid adsorbent preparation and Mr. Jason Chetwynd-Chatwin of Rolls Royce for technical support. Publisher Copyright: Copyright © 2020 American Chemical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.


Original languageEnglish
Pages (from-to)6780-6790
Number of pages11
JournalEnergy and Fuels
Issue number6
Publication statusPublished - 18 Jun 2020