A spinosus Fe3O4@MOF-PMoW catalyst for the highly effective oxidative desulfurization under oxygen as oxidant

• Published in: Separation and purification technology 2021-06, Vol.264, p.118460, Article 118460
• Main Authors: Li, Si-Wen, Zhang, Hai-Yan, Han, Tian-Hao, Wu, Wen-Qi, Wang, Wei, Zhao, Jian-She
• Format: Article
• Language: English
• Subjects: MOF materials; Oxidative desulfurization; Recycling using times; Spinosus loaded-heteropolyacid catalyst
• ISSN: 1383-5866; 1873-3794
• DOI: 10.1016/j.seppur.2021.118460

•A new kind of virus-type FeMP catalyst was synthesized and characterized.•Different type of MOF materials have been compared studied in ODS process.•FeCrP shows an excellent desulfurization efficiency and more recycling times.•The catalyst can be easily recovered and reused by external magnet. A newly kind of spinosus loaded-heteropolyacid catalyst Fe3O4@MOF-PMoW (abbreviated as FeMP, M = Cr, Cu and Zr) has been obtained under one-pot method using the various magnetic MOF materials bases. Detailed characterizations have proved out the spinosus structure, with the stinging surface morphologies outside, which benefits for the excellent desulfurization performance to the larger contact area with sulfur compounds as much as possible. To be noted, the FeCrP catalyst shows the 100% DBT removal in 60 min, while only 97.0% and 91.6% for FeCuP and FeZrP, respectively. The phenomenon is mainly attributed to the larger BET contact area, leading to link more PMoW to react with DBT in oil. In particular, the FeCrP could be applied in ODS process even after 10 times without the obvious decrease in catalytic activity and the same highly desulfurization performance also has founded in real diesel, showing a better using value in actual industrial application.