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化工学报  2015 

静电纺丝法制备氧化钛-氧化石墨复合载体的加氢脱硫性能

DOI: 10.11949/j.issn.0438-1157.20141781, PP. 2514-2520

Keywords: 静电纺丝,TiO2纳米纤维,氧化石墨,加氢脱硫,催化剂,载体

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Abstract:

以静电纺丝法制备TiO2纳米纤维(TiO2(NF))和TiO2-氧化石墨(GO)复合纳米纤维(TiO2(NF)-GO)加氢脱硫催化剂的载体,采用等体积浸渍法制备NiMo/TiO2(NF)和NiMo/TiO2(NF)-GO催化剂,运用N2吸附-脱附、X射线衍射、XPS、TEM、Raman光谱和NH3程序升温脱附等表征手段对载体和催化剂进行表征分析,并考察掺杂不同含量GO对催化剂加氢脱硫性能的影响。实验结果表明,当GO/TiO2(NF)质量分数为0.5%时,复合载体的中强酸增加得最多,在温度280℃、氢气分压2.0MPa、体积空速4h-1,氢油体积比400相当温和条件下,对应的催化剂表现出优异的加氢脱硫性能。

References

[1]  Babich I V, Moulijn J A. Science and technology of novel processes for deep desulfurization of oil refinery streams: a review [J]. Fuel, 2003, 82 (6): 607-631.
[2]  Song C. An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel [J]. Catalysis Today, 2003, 86 (1): 211-263.
[3]  Stanislaus A, Marafi A, Rana M S. Recent advances in the science and technology of ultra low sulfur diesel (ULSD) production [J]. Catalysis Today, 2010, 153 (1): 1-68.
[4]  Gao Q, Ofosu T N K, Ma S G, et al. Catalyst development for ultra-deep hydrodesulfurization (HDS) of dibenzothiophenes(Ⅰ): Effects of Ni promotion in molybdenum-based catalysts [J]. Catalysis Today, 2011, 164 (1): 538-543.
[5]  Song C, Ma X. New design approaches to ultra-clean diesel fuels by deep desulfurization and deep dearomatization [J]. Applied Catalysis B: Environmental, 2003, 41 (1): 207-238.
[6]  Brunet S, Mey D, Pérot G, et al. On the hydrodesulfurization of FCC gasoline: a review [J]. Applied Catalysis A: General, 2005, 278 (2): 143-172.
[7]  Oyama S T, Gott T, Zhao H, et al. Transition metal phosphide hydroprocessing catalysts: a review [J]. Catalysis Today, 2009, 143 (1): 94-107.
[8]  Tauster S J, Fung S C, Garten R L. Strong metal-support interactions. Group 8 noble metals supported on titanium dioxide [J]. Journal of the American Chemical Society, 1978, 100 (1): 170-175.
[9]  Yoshinaka S, Segawa K. Hydrodesulfurization of dibenzothiophenes over molybdenum catalyst supported on TiO2-Al2O3 [J]. Catalysis Today, 1998, 45 (1-4): 293-298.
[10]  Okamoto Y, Maezawa A, Imanaka T. Active sites of molybdenum sulfide catalysts supported on Al2O3 and TiO2 for hydrodesulfurization and hydrogenation [J]. Journal of Catalysis, 1989, 120 (1): 29-45.
[11]  Wang Haitang(王海棠), Zhu Yinhua(朱银华), Yang Zhuhong(杨祝红), Liu Jinlong(刘金龙), Sun Qingjie(孙庆杰), Lu Xiaohua(陆小华), Feng Xin(冯新). p-Nitrophenol hydrogenation over a novel Ni/TiO2 catalyst [J]. Chinese Journal of Catalysis(催化学报), 2009, 30 (5): 414-420.
[12]  Zuo Zhonghua(左中华), Xie Yuping(谢玉萍), Nie Hong(聂红), Shi Yahua(石亚华), Li Can(李灿). Study on hydrodesulfurization mechanism of 4,6-dimethyldibenzothiophene:catalytic behavior of NiW-based catalysts [J]. Chinese Journal of Catalysis(催化学报), 2002, 23 (3): 271-275.
[13]  Song Hua(宋华), Guo Yuntao(郭云涛), Li Feng(李锋), Yu Hongkun(于洪坤). Preparation, hydrodesulfurization and hydrodenitrogeneration performance of Ni2P/TiO2-Al2O3 catalyst [J]. Acta Physico-Chimica Sinica(物理化学学报), 2010, 26 (9): 2461- 2467.
[14]  Li N, Liu G, Zhen C, Li F, Zhang L L, Cheng H M. Battery performance and photocatalytic activity of mesoporous anatase TiO2 nanospheres/graphene composites by template-free self-assembly [J]. Advanced Functional Materials, 2011, 21(9): 1717-1722.
[15]  Gao Y Y, Pu X P, Zhang D F, Ding G Q, Shao X, Ma J. Combustion synthesis of graphene oxide-TiO2 hybrid materials for photodegradation of methyl orange [J]. Carbon, 2012, 50: 4093-4101.
[16]  Kim H I, Kim S, Kang J K, Choi W. Graphene oxide embedded into TiO2 nanofiber: effective hybrid photocatalyst for solar conversion [J]. Journal of Catalysis, 2014, 309: 49-57.
[17]  Zhang H, Lv X J, Li Y M, Wang Y, Li J H. P25-graphene composite as a high performance photocatalyst [J]. ACS Nano, 2009, 4 (1): 380-386.
[18]  Ferdous D, Bakhshi N N, Dalai A K, Adjaye J. Synthesis, characterization and performance of NiMo catalysts supported on titania modified alumina for the hydroprocessing of different gas oils derived from Athabasca bitumen [J]. Applied Catalysis B: Environmental, 2007, 72: 118-128.
[19]  Hu Y, Dong L, Wang J. UV-Raman characterizations of MoO3/ZrO2 catalysts with extremely low MoO3 loadings [J]. Chemistry Letters, 2000, (8): 904-905.
[20]  Wang Huaiyuan(汪怀远), Zhu Youzhuang(朱友庄), Zhao Jingyan(赵景岩), Cheng Xiaoshuang(程小双), Zhang Zhihua(张志华). Characteristics of TiO2 carrier on performance of dibenzothiophene hydrodesulfurization [J]. CIESC Journal (化工学报), 2013, 64 (7): 2462-2467.
[21]  Abdel Dayem H M. Dynamic phenomena during reduction of α-NiMoO4 in different atmospheres:? in-situ thermo-Raman spectroscopy study [J]. Ind. Eng. Chem. Res., 2007, 46 (8): 2466- 2472.
[22]  Peining Z, Nair A S, Shengjie P, Shengyuan, Y, Ramakrishna S. Facile fabrication of TiO2-graphene composite with enhanced photovoltaic and photocatalytic properties by electrospinning [J]. ACS Applied Materials & Interfaces, 2012, 4 (2): 581-585.
[23]  Beccat P, Da Silva P, Huiban Y, Kasztelan S. Quantitative surface analysis by XPS (X-ray photoelectron spectroscopy): application to hydrotreating catalysts [J]. Oil & Gas Science and Technology, 1999, 54(4): 487-496.
[24]  Lai W, Song W, Pang L, Wu Z, Zheng N, Li J, Fang W. The effect of starch addition on combustion synthesis of NiMo-Al2O3 catalysts for hydrodesulfurization [J]. Journal of Catalysis, 2013, 303: 80-91.
[25]  Li L C, Zhu Y D, Lu X H, Wei M J, Zhuang W, Yang Z H, Feng X. Carbon heterogeneous surface modification on a mesoporous TiO2-supported catalyst and its enhanced hydrodesulfurization performance [J]. Chemical Communications, 2012, 48: 11525-11527.
[26]  Li H, Li M, Chu Y, Liu F, Nie H. Essential role of citric acid in preparation of efficient NiW/Al2O3 HDS catalysts [J]. Applied Catalysis A: General, 2011, 403 (1): 75-82.
[27]  Olivas A, Zepeda T A. Impact of Al and Ti ions on the dispersion and performance of supported NiMo(W)/SBA-15 catalysts in the HDS and HYD reactions [J]. Catalysis Today, 2009, 143: 120-125.

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