Journal
FUEL PROCESSING TECHNOLOGY
Volume 235, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.fuproc.2022.107386
Keywords
Hydrodesulfurization; Unsupported catalyst; HDS mechanism; Template -free method; Template method
Funding
- Talent Fund for Province and Ministry Co-construction Collaborative Innovation Center of Eco-chemical Engineering [STHGYX2220]
- Min- istry Co -construction Collaborative Innovation Center of Eco-chemical Engineering [STHGYX2220]
- Opening Fund of State Key Laboratory of Heavy Oil Processing [SKLOP202002002]
- National Natural Science Foundation of China [22008131]
- Natural Science Foundation of Shandong Province [ZR2021MB134, ZR2019BB052]
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This review provides an overview of the research progress in unsupported catalysts for the hydrodesulfurization (HDS) of fuel, including template-free methods, template methods, and future development prospects.
With the increasingly prominent concerns on the environmental pollution from vehicles, the sulfur content in fuels must be limited to < 10 ppm around the world. The hydrodesulfurization (HDS) technology still is the dominant hydrorefining process of fuels. Traditional supported HDS catalysts usually refer to the Co(Ni)Mo/ Al2O3 with the shortages of low loading of active metals and strong metal-support interaction. Thus, the unsupported (or bulk) HDS catalysts without support have received increasing attention both from academia and industry in recent years. This review provides the research progress of unsupported catalysts for the HDS of fuel. Firstly, the overview of the HDS process was introduced, followed by the developments of template-free methods and template methods for preparing unsupported HDS catalysts. Finally, some crucial issues and the perspective of future development of unsupported HDS catalysts were summarized to achieve the goal of the production of ultra-low sulfur fuels.
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