4.6 Article

Catalytic oxidative desulfurization of model fuel utilizing functionalized HMS catalysts: characterization, catalytic activity and mechanistic studies

期刊

REACTION CHEMISTRY & ENGINEERING
卷 6, 期 2, 页码 289-296

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d0re00373e

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资金

  1. Key Research and Development Project of Shandong Province [2019GGX103018]
  2. National Natural Science Foundation of China [22008131]
  3. Natural Science Foundation of Shandong Province [ZR2019BB052, ZR2018LB027]
  4. foundation of the State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering [2017-K17, 2017-K23]
  5. State Key Laboratory for Effective Utilization of Chemical Resources [CRE-2018-C-302]
  6. Start-up Foundation for Advanced Talents of Qingdao University of Science and Technology [010022919, 010029063]

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A novel Fe(ii) porphyrin catalyst was synthesized and characterized, showing excellent catalytic activity and reusability in oxidative desulfurization. The catalyst reached a desulfurization rate of 98.4% under optimized conditions, indicating its potential for oxidative reactions. A possible mechanism for the oxidative desulfurization on FeC4Pc-HMS catalysts was proposed based on experimental results.
In this study, a novel Fe(ii) porphyrin conjugated amino modified HMS catalyst was synthesized and characterized by BET, XRD, TEM, SEM, and UV-vis techniques. The catalytic oxidative desulfurization performance and the different reaction conditions in model oil were investigated. The results showed that the mentioned FeC4Pc catalysts which integrated the high surface area of carriers and the high catalytic capacity and accessibility of active components exhibited excellent catalytic activity and reusability. Under the optimized reaction conditions, the desulfurization rate reached 98.4% of model oil enriched with model sulfur compounds. A possible mechanism of the oxidative desulfurization on FeC4Pc-HMS catalysts was proposed, and our experimental results demonstrated that the catalyst has potential for other oxidative reactions.

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