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Journal of Chemistry
Volume 2013, Article ID 838590, 7 pages
Research Article

Investigation on Aromaticity Index and Double-Bond Equivalent of Aromatic Compounds and Ionic Liquids for Fuel Desulphurization

1Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, 26300 Pahang, Malaysia
2Chemical Engineering Department, PETRONAS Ionic Liquid Centre, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Tronoh, 31750 Perak, Malaysia

Received 18 July 2013; Revised 5 November 2013; Accepted 15 November 2013

Academic Editor: Yoshihiro Kudo

Copyright © 2013 Syamsul B. Abdullah et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Aromaticity index (AI) and double-bond equivalent (DBE) were studied to seek a simpler approach in identifying suitable ionic liquids for the desulphurization process. Manifestation of interaction mechanism by COSMO-RS and Raman spectroscopy is discussed. The findings demonstrate that AI and DBE calculations can be used to analyze and arrogate potential combination of cation and anion for fuel desulphurization purposes.