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首页> 外文期刊>RSC Advances >Synthesis of zirconium modified FDU-12 by different methods and its application in dibenzothiophene hydrodesulfurization
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Synthesis of zirconium modified FDU-12 by different methods and its application in dibenzothiophene hydrodesulfurization

机译：不同方法合成锆改性FDU-12及其在二苯并噻吩加氢脱硫中的应用

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摘要

Zirconium modified mesoporous materials were successfully synthesized by different methods including direct synthesis and post synthesis (grafting and impregnating). Meanwhile, the corresponding catalysts were prepared. A series of techniques, including small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM) and pyridine adsorption Fourier-transform infrared (Py-IR), were used to characterize the properties of supports and catalysts. The results of SASX and TEM characterization proved that all the modified materials retained the well ordered mesoporous structure from the FDU-12 material. N-2 adsorption-desorption results showed that the Zr-FDU-12 material obtained by direct synthesis (Zr-in-F) possessed higher specific surface area (709 m(2) g(-1)), pore volume (0.65 cm(3) g(-1)) and larger pore size (18.7 nm) than the Zr-FDU-12 materials obtained by the post synthesis. According to the characterization result of UV-Vis, Zr-in-F exhibited better dispersion of Zr species than materials obtained by the post synthesis. It was found that the incorporation of Zr species not only increased acidities but also enhanced the sulfidities of the Mo species. All the catalysts were evaluated for their activities in the hydrodesulfurization of dibenzothiophene, and the NiMo/Zr-in-F catalyst exhibited the best catalytic performance (97.3%), attributed to its higher specific surface area, larger pore size, higher sulfidity, and more acidic sites.
机译：通过不同的方法成功地合成了锆改性的介孔材料，包括直接合成和合成后（接枝和浸渍）。同时，制备相应的催化剂。使用一系列技术，包括小角度X射线散射（SAX），透射电子显微镜（TEM）和吡啶吸附傅里叶变换红外（PY-IR）来表征载体和催化剂的性质。 SASX和TEM表征的结果证明，所有改性材料都保留了来自FDU-12材料的良好的订购介孔结构。 N-2吸附 - 解吸结果表明，通过直接合成（Zr-In-F）获得的ZR-FDU-12材料具有较高的比表面积（709m（2）G（-1）），孔体积（0.65厘米（3）G（-1））和较大的孔径（18.7nm）比由合成后获得的Zr-FDU-12材料。根据UV-Vis的表征结果，Zr-In-F表现出比通过后合成所获得的材料更好地分散Zr物种。结果发现，Zr种类不仅增加了酸性而且增强了Mo物种的核心。评价所有催化剂在二苯甲酸噻吩的加氢脱硫中的活性，并且Nimo / Zr-in-F催化剂表现出最佳的催化性能（97.3％），其归因于其较高的比表面积，孔径较大，硫含量较高，和更酸性的位点。

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  • 来源
    《RSC Advances》 |2018年第48期|共9页
  • 作者

    Meng Qian; Du Peng; Wang Bo; Duan Aijun; Xu Chunming; Zhao Zhen; Liu Cong; Hu Di; Li Yuyang; Xiao Chengkun;

  • 作者单位

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

    China Univ Petr State Key Lab Heavy Oil Proc Beijing 102249 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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