Skip to main content
Log in

Non-hydrogen processes for simultaneous desulfurization and denitrogenation of light petroleum fuels—an elaborative review

  • Review Article
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

The removal of sulfur- and nitrogen-containing compounds present in petroleum fractions is necessary to meet the stringent environmental regulations and to prevent the environment and humanity from the threats they pose. Conventional hydro-desulfurization and hydro-denitrogenation processes have evolved significantly over the past decade but are limited due to severe operating conditions and inefficiency in removing nitrogen-containing compounds. On the contrary, unconventional non-hydrogen methods for refining of crude oils are beneficial in terms of mild operating conditions and are efficient for eradicating both sulfur- and nitrogen-containing compounds. Despite being efficient for both sulfur and nitrogen-containing compounds, these techniques suffer due to the hindrance posed by the competitive nature of nitrogen-containing compounds. Thus, it is recommended to develop techniques that can remove both the compounds simultaneously and efficiently. Techniques for simultaneous removal of those compounds can also be expected to reduce the number of unit operations required during refining and can be energy-efficient as well. This elaborative review summarizes the developments done in this field in the past two decades. To improve the understanding of the scientific community towards the feasibility of simultaneous desulfurization and denitrogenation processes, the crucial parameters for efficient desulfurization-denitrogenation processes are also discussed. This review can be expected to encourage the scientific community to search for more economical, energy-efficient, and commercializable pathways for desulfurization-denitrogenation of petroleum oil.

Graphical abstract

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

Data availability

All data generated or analyzed during this study are included in this published article.

References

Download references

Acknowledgements

The authors acknowledge the Department of Chemical Engineering, Indian Institute of Technology Kharagpur.

Author information

Authors and Affiliations

Authors

Contributions

All the authors contributed to the work. SK conducted the literature analysis, prepared the original draft and attended the revisions and editing. SS conceptualized, edited and critically revised the work. Both the authors have read and approved the final manuscript.

Corresponding author

Correspondence to Sonali Sengupta.

Ethics declarations

Ethics approval and consent to participate

Not applicable

Consent for publication

Not applicable

Competing interests

The authors declare no competing interests.

Additional information

Responsible Editor: Philippe Garrigues

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kumari, S., Sengupta, S. Non-hydrogen processes for simultaneous desulfurization and denitrogenation of light petroleum fuels—an elaborative review. Environ Sci Pollut Res 28, 61873–61907 (2021). https://doi.org/10.1007/s11356-021-15909-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-021-15909-9

Keywords

Navigation