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Synthesis and characteristics of Ce modified HY/SBA-15 and its desulfurization performance for simulated oil

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Abstract

A composite zeolite HY/SBA-15 has been synthesized by an overgrowth approach, and then doped with Ce by a liquid phase ion exchange process to form the Ce modified HY/SBA-15 catalyst. The synthesized materials were examined by X-ray diffraction (XRD), nitrogen adsorption–desorption, transmission electron microscopy (TEM), BJH analysis and pyridine adsorption Fourier-transform infrared spectroscopy (Py-FTIR). The results showed the existence of two different pores sizes of 1.8 and 6 nm. Thus, the HY/SBA-15 composite includes both microporous and mesoporous structures. Desulfurization activity of the composite materials was evaluated using as simulated oil gas. The results showed that the SOx adsorption capacity of Ce-HY/SBA-15 was enhanced by 1.97 mg/g compared to HY/SBA-15, which suggested that the Ce plays an important role in the desulfurization of simulated oil over composite zeolite. Furthermore, the Py-FTIR results revealed the relationship between the surface acids and the desulfurization performance. It was found that the weak Lewis acids were important for the improved desulfurization performance, while the Brönsted acids inhibited the desulfurization performance.

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Acknowledgments

We thank the Research Fund for the Doctoral Program of Higher Universities (20100042110008), Found for Research Project of Education and Teaching Reform of Liaoning Shihua University (20165230080023), Found for Liaoning Shihua University Students Innovation and Entrepreneurship (2016008) and Supported by talent scientific research fund of LSHU.

Authors’ contribution

Chun-Wei Shi, Wen-Yuan Wu and Xue Bian conceived and designed the experiments. Chun-Wei Shi, Yongfu Wu and Wen-Yi Chen performed the experiments and analyzed the data. Chun-Wei Shi, Yongfu Wu, Wen-Yi Chen, Wen-Yuan Wu, Xue Bian, Shan-Lin Zhao and Mingyuan Pei wrote the paper.

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Authors and Affiliations

  1. College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Funshun, Liaoning, 113001, China

    Chun-Wei Shi, Wen-Yi Chen & Shan-Lin Zhao

  2. School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China

    Yongfu Wu

  3. School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning, 110819, China

    Wen-Yuan Wu & Xue Bian

  4. Inha University, 100 Inharo, Nam-gu, Incheon, 402-751, South Korea

    Mingyuan Pei

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  1. Chun-Wei Shi
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Correspondence to Chun-Wei Shi.

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Shi, CW., Wu, Y., Chen, WY. et al. Synthesis and characteristics of Ce modified HY/SBA-15 and its desulfurization performance for simulated oil. J Porous Mater 24, 381–388 (2017). https://doi.org/10.1007/s10934-016-0271-3

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  • DOI: https://doi.org/10.1007/s10934-016-0271-3

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