Removal of Nitrogen Containing Compounds From Fuel Using Modified Activated Carbon

S M Anisuzzaman; Mohd Syafiq Kamarulzaman.

Transactions on Science and Technology, 8(1), 38 - 44.

Back to main issue

This study was carried out to understand the suitability of activated carbon (AC) which is modified with hydrochloric acid (HCl) and tested by its adsorption capacity of nitrogen containing compounds (NCC) from fuel with three variables such as different concentrations of model fuel, contact time, and amount of modified AC (MAC). Batch mode experiments were conducted to remove quinoline (QUI) and indole (IND) from the model fuel prepared from n-hexane. All the experimental data were analysed using ultraviolet-visible spectroscopy after adsorption experiment between adsorbent and model fuel. Modification of commercial AC involved impregnation with different ratios of HCl solution. The characterization of modified and unmodified AC was done by using fourier-transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM). The adsorption potential of the MAC was measured based on the two isotherms, which are Langmuir and Freundlich isotherms to determine the isotherm constants and two kinetic models which are pseudo-first order and pseudo-second order. The adsorption capacity for QUI and IND was found to be 0.4708 mg/g and 0.8094 mg/g, respectively. On the other hand, the rate of adsorption for QUI and IND was 6.3766 and 0.4992, respectively. The adsorption kinetic experiment for both QUI and IND was found to follow the pseudo first-order.

KEYWORDS: Adsorption, nitrogen containing compounds, quinoline, indole, activated carbon.

Download this PDF file

  1. Anisuzzaman, S. M., Abang, S., Krishnaiah, D. & Azlan, N. A. 2019. Removal of used motor oil from water body using modified commercial activated carbon. Malaysian Journal of Chemistry, 21(1), 36-46.
  2. Anisuzzaman, S. M., Krishnaiah, D. & Alfred, D. 2018. Adsorption potential of a modified activated carbon for the removal of nitrogen containing compounds from model fuel. AIP Conference Proceedings, Proceedings of the International Conference on Engineering and Technology (INTCET 2017). 23-24 November, 2017. Palm Garden Hotel, IOI Resort City, Putrajaya, Malaysia. 1930(020013), 1-8.
  3. Chen, J. P. & Wu, S. 2004. Acid/base-treated activated carbons: characterization of functional groups and metal adsorptive properties. Langmuir, 20(6), 2233-2242.
  4. Ching, S. L., Yusoff, M. S., Aziz, H. A. & Umar, M. 2011. Influence of impregnation ratio on coffee ground activated carbon as landfill leachate adsorbent for removal of total iron and orthophosphate. Desalination, 279, 225-234.
  5. Eijsbouts, S., De Beer, V. H. J. & Prins, R. 1991. Hydrodenitrogenation of quinoline over carbon-supported transition metal sulphides. Journal of Catalysis, 127, 619-630.
  6. Furimsky, E. & Massoth, F. E. 2005. Hydrodenitrogenation of petroleum. Catalysis Reviews, 47(3), 297-489.
  7. Gong, H., Chen, Z., Fan, Y., Zhang, M., Wu, W. & Wang, W. 2015. Surface modification of activated carbon for siloxane adsorption. Renewable Energy, 83, 144-150.
  8. Krishnaiah, D., Anisuzzaman, S. M., Bono, A. & Sarbatly, R. 2013. Adsorption of 2,4,6-trichlorophenol (TCP) onto activated carbon. Journal of King Saud University: Science, 25(3), 251-255.
  9. Marriott, J. 2010. Characterization of nitrogen-containing compounds in heavy gas oil petroleum fractions using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry. Energy Fuels, 24, 3572-3580.
  10. Oliveira, F. M. E., Vaz, B. G., Borba, C. E., Alonso, C. G. & Ostroski I. C. 2019. Modified activated carbon as a promising adsorbent for quinoline removal. Microporous and Mesoporous Materials, 277, 208-216.
  11. Roghaye, D. & Mansor, A. 2017. Zeolites for adsorptive desulfurization from fuels: A review. Fuel Processing Technology, 167, 99-116.
  12. Seo, P. W., Ahmed, I. & Jhung, S. H. 2016. Adsorptive removal of nitrogen-containing compounds from a model fuel using a metal-organic framework having a free carboxylic acid group. Chemical Engineering Journal, 299, 236-243.
  13. ShamsiJazeyi, H. & Kaghazchi, T. 2010. Investigation of nitric acid treatment of activated carbon for enhanced aqueous mercury removal. Journal of Industrial and Engineering Chemistry, 16(5), 852-858.
  14. Tan, I. A. W., Abdullah, M. O., Lim, L. L. P. & Yeo, T. H. C. 2017. Surface modification and characterization of coconut shell-based activated carbon subjected to acidic and alkaline treatments. Journal of Applied Science & Process Engineering, 4(2), 186-194.
  15. Wu, S. & Chen J. P. 2008. Modification of a commercial activated carbon for metal adsorption by several approaches. Indian Journal of Environmental Protection, 28(8), 673-675.