Highly efficient NiMo/SiO2-Al2O3 hydrodesulfurization catalyst prepared from gemini surfactant-dispersed Mo precursor
Highly efficient NiMo/SiO2-Al2O3 hydrodesulfurization catalyst prepared from gemini surfactant-dispersed Mo precursor
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DOI：
10.1016/j.apcatb.2016.10.078
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发表时间：
2017-04
影响因子：
22.1
通讯作者：
Jundong Xu;Tingting Huang;Yu Fan
中科院分区：
文献类型：
--
作者：
Jundong Xu;Tingting Huang;Yu Fan
提出了一种新型双子表面活性剂辅助合成Mo前驱体制备NiMo/SiO2-Al 2 O3超深度加氢脱硫催化剂的方法。所提出的方法将多金属阴离子转化为双子表面活性剂连接的Mo前体（GSMP），这有利于形成高度分散的MoS 2相，并改善堆叠，因此在Ni掺入后产生大量可接近的Ni-Mo-S相。结果表明，GSMP基NiMo/SiO2-Al 2 O3催化剂对4，6-二甲基二苯并噻吩和催化裂化柴油的加氢脱硫反应具有较高的催化活性。
This article proposes a novel gemini surfactant-assisted synthesis of Mo precursor for preparing NiMo/SiO2-Al2O3ultra-deep hydrodesulfurization (HDS) catalysts. The proposed method transforms polymolybdate anions into gemini surfactant-linked Mo precursor (GSMP), which facilitates the formation of highly dispersed MoS2phases with improved stacking and therefore produces a large number of accessible Ni-Mo-S phases after Ni incorporation. The GSMP-based NiMo/SiO2-Al2O3catalyst presents higher catalytic activity for the HDS of 4,6-dimethyldibenzothiophene and fluid catalytic cracking (FCC) diesel than its counterparts prepared via impregnation and the cetyltrimethylammonium bromide-assisted hydrothermal method.