Promotion of WO3 species on Pt/α-Al2O3 for the deep hydrogenation of naphthalene

被引：0

作者：

Liang Y. ^{[1
]}

Zhao T. ^{[1
]}

Zhao B. ^{[1
]}

Liu L. ^{[1
]}

Dong J. ^{[1
]}

Tang M. ^{[2
]}

Li X. ^{[2
]}

机构：

[1] College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan

[2] Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan

来源：

Liu, Lei (liulei@tyut.edu.cn) | 1600年 / Materials China卷 / 72期

关键词：

Catalyst; Decalin; Hydrogenation; Naphthalene; Support; Tungsten oxide;

D O I：

10.11949/0438-1157.20211030

中图分类号：

学科分类号：

摘要：

Pt-WO3/α-Al2O3 catalysts were prepared with sequential impregnation of WO3 and then Pt in α-Al2O3 supports without acid sites. The as-prepared were investigated the promotion of WO3 catalysts in the reaction of hydrogenation of naphthene at mild reaction conditions. XRD, Raman, HRTEM, XPS, and H2-TPR analyses reveal the basic structure and distribution of Pt and WO3 species. Py-IR analyses reveal that the changing of acid sites after loading Pt and WO3 species. Pt-WO3/α-Al2O3 catalysts have shown excellent catalytic performance for the hydrogenation of naphthalene to decalin at mild reaction conditions (70℃, 3 MPa, 1 h) with the conversion and selectivity of decalin are 100%. Combined with the characterization and catalytic performance, the pre-introduced Pt and WO3 species caused the strong interaction between Pd sites and WO3 and the efficient distribution of Pt by WO3 species. The strong acidity of the catalyst and the high degree of Pt dispersion are the key factors for the deep hydrogenation of naphthalene by Pt-WO3/α-Al2O3 under low temperature conditions, which is of great significance for the process of decalin as a hydrogen storage medium. © 2021, Editorial Board of CIESC Journal. All right reserved.

引用

页码：5643 / 5652

页数：9

共 35 条

[1] Shi X F, Yang S Y, Qian Y., Chemical looping technology for clean and highly efficient coal processes, CIESC Journal, 69, 12, pp. 4931-4946, (2018)
[2] Cai D L, Xiong H, Zhang C X, Et al., From nanoscale discrete diffusion behavior control to macroscale coal chemical process, CIESC Journal, 71, 9, pp. 3849-3865, (2020)
[3] Song H., Two-step catalytic hydrogenation of industrial naphthalene to decalin, (2015)
[4] Pang M, Liu C Y, Xia W, Et al., Activated carbon supported molybdenum carbides as cheap and highly efficient catalyst in the selective hydrogenation of naphthalene to tetralin, Green Chemistry, 14, 5, (2012)
[5] Tan F Y., Study on hydrogenation of naphthalene to decalin in a fixed bed reactor, (2006)
[6] Zhang Y Y, Zhao J, Lu X L, Et al., Progress in liquid organic hydrogen storage materials, Chemical Industry and Engineering Progress, 35, 9, pp. 2869-2874, (2016)
[7] Yang P, Xin J, Li M F, Et al., Research advances in the hydroconversion of tetralin, Petroleum Processing and Petrochemicals, 42, 8, pp. 1-6, (2011)
[8] Zheng X X, Zhao J, Sun G F, Et al., Research progress in catalysts for the hydrogenation of naphthalene, Chemical Industry and Engineering Progress, 34, 5, pp. 1295-1299, (2015)
[9] Egorova M, Prins R., Competitive hydrodesulfurization of 4,6-dimethyldibenzothiophene, hydrodenitrogenation of 2-methylpyridine, and hydrogenation of naphthalene over sulfided NiMo/γ- Al<sub>2</sub>O<sub>3</sub>, Journal of Catalysis, 224, 2, pp. 278-287, (2004)
[10] Albertazzi S, Busca G, Finocchio E, Et al., New Pd/Pt on Mg/Al basic mixed oxides for the hydrogenation and hydrogenolysis of naphthalene, Journal of Catalysis, 223, 2, pp. 372-381, (2004)

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