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| 1 | An Efficient Extraction-Free Method for Oxidative Desulfurization of Model Fuels Employing Cross-Linked Polyionic Liquid Phosphotungstate Catalysts显示文摘An efficient extraction-free oxidative desulfurization(ODS)process using a series of cross-linked polyionic liquid phosphotungstate(CLPIL-PW)catalysts is reported.The cross-linked PILs were prepared with DVB and 1-n-alkyl-3-vinyl imidazole hydrobromide(alkyl=ethyl,butyl,octyl,dodecyl),and were then assembled with phosphotungstic acid(H_(3)PW_(12)O_(40))to form the catalysts.The CLPIL-PWs have been applied to the oxidative removal of dibenzothiophene(DBT)from model oil with H_(2)O_(2) as an oxidant.The effects of ionic liquid(IL)cationic species,varying the DVB/IL molar ratio in the polymerization process,and varying operating conditions were investigated.The CLPIL-PWs were characterized by inductively coupled plasma(ICP)mass spectrometry,elemental analysis,scanning electron microscopy(SEM),Fourier transform infra-red(FTIR)spectroscopy,X-ray diffraction(XRD),^(13)C and^(31)P nuclear magnetic resonance(NMR)spectroscopy.The polydivinylbenzene-co-1-n-octyl-3-vinyl imidazole phosphotungstate(P(DVB-OVIm)PW)exhibited the highest DBT removal efficiency(99.9%)and remarkable recyclability,and could be reused eight times without reducing its activity.Finally,an extraction-free ODS mechanism is proposed. | Yuan Dandan Zhang Ling Yin Guoqing Wang Yuanyuan Zhang Jiaojing | 2022 | China Petroleum Processing & Petrochemical Technology2022，24，3： | 2 |
| 2 | 燃油氧化脱硫研究进展显示文摘对于油品中的含硫化合物,传统的加氢脱硫工艺对硫醇、硫醚和硫化氢等含硫化合物脱除效果显著,但对噻吩类大分子含硫化合物的脱除效果不佳。在非加氢脱硫工艺中,氧化脱硫工艺不仅可以有效脱除噻吩类含硫化合物,并且反应条件温和、经济环保,是目前非加氢脱硫技术中最具潜力的燃油脱硫技术。氧化脱硫可以有效去除燃料油中的噻吩类含硫化合物,其中氧化剂和催化剂是氧化脱硫反应的关键。综述了几种不同的氧化剂和催化剂在氧化脱硫中的效果,为燃油氧化脱硫的应用提供一定的参考。 | 张士明 吴玉国 刘全杰 贾立明 白红鑫 | 2023 | 当代化工2023，52，8： | 0 |
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