Restrictive Diffusion in the Hydrodesulfurization over Ni-MoS2/Al2O3 with Different Crystal Forms

Restrictive Diffusion in the Hydrodesulfurization over Ni-MoS2/Al2O3 with Different Crystal Forms
复制标题

不同晶型Ni-MoS2/Al2O3加氢脱硫中的限制扩散

DOI:
10.1021/acs.iecr.7b02897
复制
发表时间:
2017-09
影响因子:
4.2
通讯作者:
Xu Chunming
Xu Chunming
中科院分区:
工程技术3区
文献类型:
--
作者:
Wang Xilong;Mei Jinlin;Zhao Zhen;Zheng Peng;Chen Zhentao;Li Jianmei;Fan Jiyuan;Duan Aijun;Xu Chunming

文献摘要

参考文献

被引文献

相似文献

以低成本原料为原料,采用水热合成法合成了不同晶型的Al_2O_3材料,并以不同晶型的Al_2O_3材料为载体制备了相应的NiMo/Al_2O_3催化剂。首次系统研究了不同分子尺寸的反应物在不同晶型的NiMo/Al_2O_3催化剂上对加氢脱硫反应的限制扩散效应。NiMo/δ-Al_2O_3具有最高的有效因子(η)和有效扩散系数(De),这与其合适的孔径和相对集中的孔径分布有关。阻碍扩散的大小顺序为:NiMo/δ-30(2.23)<NiMo/θ-30(2.83)<NiMo/γ-30(3.42),表明NiMo/δ-30催化剂的限制扩散作用弱于其他两种催化剂。
Al2O3 materials with different crystal forms were synthesized via the hydrothermal synthesis method using the low-cost raw material, and then the corresponding NiMo/Al2O3 catalysts were prepared by using Al2O3 materials with different crystal forms as the supports. The restrictive diffusion effects on the hydrodesulfurization reaction of different reactants with different molecular sizes over the NiMo/Al2O3 catalysts with different crystal forms were investigated systematically for the first time. NiMo/δ-Al2O3 exhibited the highest values of the effective factor (η) and effective diffusion coefficient (De), which could be ascribed to its proper pore diameter and relatively concentrated pore diameter distribution. The hindered magnitudes of diffusion decrease in the order of NiMo/δ-30 (2.23) < NiMo/θ-30 (2.83) < NiMo/γ-30 (3.42), indicating that the restrictive diffusion effect of NiMo/δ-30 catalyst was weaker than those of the other two catalysts.
DOI: 10.1016/0009-2509(58)85034-4
发表时间: 1958-06
影响因子: 4.7
作者:
D. Thoenes;H. Kramers
通讯作者: D. Thoenes;H. Kramers
DOI: 10.1021/ie00042a024
发表时间: 1995-03
影响因子: 4.2
作者:
Chiuping Li;Yu‐Wen Chen;M. Tsai
通讯作者: Chiuping Li;Yu‐Wen Chen;M. Tsai
DOI: 10.1021/ie00020a011
发表时间: 1993-08
影响因子: 4.2
作者:
M. Tsai;Yu‐Wen Chen;Chiuping Li
通讯作者: M. Tsai;Yu‐Wen Chen;Chiuping Li
DOI: 10.1016/j.cattod.2005.08.006
发表时间: 2005-11
期刊: Catalysis Today
影响因子: 5.3
作者:
Jinwen Chen;H. Yang;Z. Ring
通讯作者: Jinwen Chen;H. Yang;Z. Ring
DOI: 10.1016/0021-9517(88)90328-4
发表时间: 1988-04
影响因子: 7.3
作者:
V. LaVopa;C. Satterfield
通讯作者: V. LaVopa;C. Satterfield