当前位置: X-MOL 学术J. Catal. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Mesoporous zeolite-supported metal sulfide catalysts with high activities in the deep hydrogenation of phenanthrene
Journal of Catalysis ( IF 6.5 ) Pub Date : 2015-08-28 20:30:48
Wenqian Fu, Lei Zhang, Dongfang Wu, Mei Xiang, Qian Zhuo, Kai Huang, Zhongdong Tao, Tiandi Tang

Developing highly active hydrogenation catalysts for deep aromatics saturation is of great importance in the production of ultraclean diesel fuel at a low cost. Toward this goal, we synthesized a mesoporous zeolite ZSM-5 (MZSM-5) that was cost-effective and available on a large scale, and used it as a support for the preparation of highly efficient metal sulfide catalysts (NiMoS/MZSM-5 and CoMoS/MZSM-5) for the deep hydrogenation of phenanthrene. The intrinsic activity of the NiMoS/MZSM-5 catalyst (7.4×10−4 molkg−1 s−1) was much higher than that of the alumina-supported NiMo catalyst (NiMoS/γ-Al2O3, 4.8×10−4 molkg−1 s−1), and the selectivity of the deep hydrogenation products over NiMoS/MZSM-5 (20.9%) was higher than for NiMoS/γ-Al2O3 (15.2%). Compared with γ-Al2O3, the relatively weak metal–support interaction could facilitate the formation of polymolybdates on MZSM-5. After sulfidation, the more multistacked MoS2 active phases were formed on the MZSM-5, enhancing the hydrogenation activity of the NiMoS/MZSM-5 catalyst.

中文翻译:

在菲的深度加氢中具有高活性的介孔沸石负载的金属硫化物催化剂

开发用于深度芳烃饱和的高活性加氢催化剂对于以低成本生产超净柴油燃料非常重要。为了实现这一目标,我们合成了具有成本效益且可大规模使用的中孔沸石ZSM-5(MZSM-5),并将其用作制备高效金属硫化物催化剂(NiMoS / MZSM-5)的载体和CoMoS / MZSM-5)用于菲的深度氢化。所述NiMoS / MZSM-5催化剂的固有活性(7.4×10 -4 molkg -1小号-1)比所述氧化铝负载的NiMo催化剂(NiMoS /γ-Al系高得多的2 ö 3,4.8×10 - 4摩尔千克-1 s -1),以及深氢化产物过的选择性NiMoS / MZSM-5(20.9%)比为NiMoS /γ-Al系更高2 ö 3(15.2%)。与γ-Al系相比2 ö 3,相对较弱的金属-载体相互作用可以促进polymolybdates对MZSM-5的形成。硫化后,在MZSM-5上形成了更多层的MoS 2活性相,从而增强了NiMoS / MZSM-5催化剂的氢化活性。
更新日期:2015-08-29
down
wechat
bug