纳米级Y型沸石分子筛的可控制备研究
摘要
纳米级Y沸石分子筛相对于常规粒径的Y型沸石来说,具有较大的比表面积、更多的催化活性位以及较短的扩散路径等优点,能够有效提高产物选择性和降低催化剂结焦失活,在石油化工等领域有着广阔的应用前景。因此,合成性能优良的纳米级Y型沸石分子筛有着重要的工业应用价值。本文的主要内容为采用有机模板剂四甲基氢氧化铵(TMAOH)为第一模板剂和十六烷基三甲基溴化铵(CTAB)为第二模板剂制备出高结晶度的粒径为100nm左右的Y型沸石分子筛,为其大规模工业化生产奠定良好的基础。
引文
[1]罗东,等. NaY型沸石分子筛催化环己胺氧化制备环己酮肟[J].应用化学, 2013, 30(12):1443-1448.
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[5] Fu W, Zhang L, Tang T, et al. Extraordinarily High Activity in the Hydrodesulfurization of4,6-Dimethyldibenzothiophene over Pd Supported on Mesoporous Zeolite Y[J]. Journal of the American Chemical Society, 2011, 133(39):15346-15349.
[2] Lin L, Zhang Y, Zhang H, et al. Adsorption and Solvent Desorption Behavior of Ion-Exchanged Modified Y Zeolites for Sulfur Removal and for Fuel Cell Applications[J]. Journal of Colloid and Interface Science, 2011, 360(2):753-759.
[3] True W R, Koottungal L. Global capacity growth reverses; Asian, Mideast refineries progress[J].Oil&gas journal, 2011, 109(19):30-43.
[4] De Jong K P, et al. Zeolite Y crystals with trimodal porosity as ideal hydrocracking catalysts[J].Angewandte Chemie, 2010, 122(52):10272-10276.
[5] Fu W, Zhang L, Tang T, et al. Extraordinarily High Activity in the Hydrodesulfurization of4,6-Dimethyldibenzothiophene over Pd Supported on Mesoporous Zeolite Y[J]. Journal of the American Chemical Society, 2011, 133(39):15346-15349.