Recent advances in catalytic oxidative desulfurization of fuel oil – A review

Sulfur affects fuel quality, and the burning of fuel containing sulfur compounds caused adverse effects on humans and the environment. Nowadays, research has shifted focus to the development of desulfurization technologies to cut the sulfur content to permissible limits for gasoline and diesel. Although various technologies developed for oil treatment in petrochemical industries are not very effective and unable to comply with the standard recommended values. In recent times, catalytic ODS has been identified as one of the most suitable, effective, and sustainable technology for deep desulfurization. The development of new emerging class of hybrid organic–inorganic compounds of [email protected] demonstrated great potential as catalytic materials for ODS. This is due to the unique characteristics of high functionalization, stability, surface area, and porosity. This review provides an overview of sulfur-containing compounds in fuel and presents a critical analysis of desulfurization methods and applications. This is followed by an in-depth analysis of the recently developed strategies of [email protected] applications considering the emerging prospects and advantages to overcome the drawbacks of pristine POMs and MOFs. The operating parameters affecting catalytic activity have been discussed, and finally, the work provides future research directions to increase the catalytic performance of [email protected] materials in desulfurization technology.