Fuel ( IF 6.7 ) Pub Date : 2022-12-05 , DOI: 10.1016/j.fuel.2022.126992 Yan Gao , Hailong Li , NaNa Li , Xiaobo Hu , Linyan Feng , Aiping Yin , Jianshe Zhao
Magnetic hybrid material dropped Fe2O3 particles in mesoporous carbon was prepared by pyrolysis of MIL-101(Fe) in the presence of nitrogen flow. Then, high activity peroxo-polyoxometallates (Bu4N)3PWxMo4-x (x = 0, 2, 4) were encapsulated into the magnetic porous carbon material Fe2O3/C through facile impregnation method to prepare magnetic supported catalysts (Bu4N)3PWxMo4-x@Fe2O3/C. The catalysts were characterized by several means and applied for extraction oxidation desulfurization (EODS) of model fuel. One synthesized catalyst, (Bu4N)3PW4@Fe2O3/C, exhibited nearly perfect catalytic activity, which could remove 99.9 % DBT in simulated fuel within 30 min at mild conditions, and it also showed good activity for other substrate sulfides including BT, 4-MDBT and 4,6-DMDBT. Furthermore, the catalyst (Bu4N)3PW4@Fe2O3/C has stable structure and good reusability, which shown removal efficiency of DBT of>90 % up to 8 cycles.
中文翻译:
将过氧-多金属氧酸盐封装到由 MIL-101(Fe) 碳化的 Fe2O3/C 杂化材料中作为燃料脱硫的高效磁性催化剂
通过在氮气流存在下热解MIL-101(Fe)制备了在介孔碳中滴落Fe 2 O 3颗粒的磁性杂化材料。然后,通过简易浸渍法将高活性过氧-多金属氧酸盐(Bu 4 N) 3 PW x Mo 4-x (x = 0, 2, 4)包封到磁性多孔碳材料Fe 2 O 3 /C中制备磁性负载催化剂 (Bu 4 N) 3 PW x Mo 4-x @Fe 2 O 3/C。催化剂通过多种方式表征,并应用于模型燃料的萃取氧化脱硫(EODS)。合成的一种催化剂(Bu 4 N) 3 PW 4 @Fe 2 O 3 /C表现出近乎完美的催化活性,在温和条件下30分钟内可去除模拟燃料中99.9%的DBT,同时对其他催化剂也表现出良好的活性。底物硫化物包括 BT、4-MDBT 和 4,6-DMDBT。此外,该催化剂(Bu 4 N) 3 PW 4 @Fe 2 O 3 /C具有稳定的结构和良好的可重复使用性,8个循环后DBT的去除效率>90%。