Biodesulfurization Processes for the Removal of Sulfur from Diesel Oil: A Perspective Report

Roselle Y. Mamuad and Angelo Earvin Sy Choi ()
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Roselle Y. Mamuad: Department of Chemical Engineering, Mariano Marcos State University, City of Batac 2906, Philippines
Angelo Earvin Sy Choi: Department of Chemical Engineering, De La Salle University, 2401 Taft Ave., Manila 0922, Philippines

Energies, 2023, vol. 16, issue 6, 1-15

Abstract: The presence of elevated levels of sulfur in diesel oil results in an increased sulfur content in the process stream, which poses significant risks to human health, animals, the environment, vehicles, and infrastructure. Sulfur is a major contributor to particulate matter (PM) and total PM emissions. The level of pollutants emitted is correlated to the sulfur content in diesel fuel. Consequently, regulations regarding the sulfur content in crude oil products, particularly in diesel oil, have become increasingly stringent. Refiners are working to develop sulfur-free fuels with less than 10 ppm of sulfur. To address the impending threats to human health and the environment, and the impact of climate change on property, eco-friendly desulfurization techniques such as biodesulfurization (BDS) are being explored. Several bacterial species have been identified for the BDS of diesel oil, but extensive studies are needed to fully understand the mechanism. Further research on BDS is also required to make it more attractive and competitive in industrial applications. Combining BDS with other technologies for the desulfurization of diesel oil can potentially reduce operating costs and improve resource allocation, making this innovation a viable option for industry.

Keywords: biodesulfurization; sulfur; dibenzothiophene; diesel fuel; recalcitrant organosulfur (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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