Preparation of Ag and Y loaded metal-organic framework Ag-Y/MIL-101 and its adsorption desulfurization performance

被引：0

作者：

Gong, Ming-Yue ^{[1
]}

Song, Hua ^{[1
,2
]}

机构：

[1] College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing,163318, China

[2] Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing,163318, China

来源：

Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology | 2020年 / 48卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Adsorption - Loading - Silver - Silver compounds - Sulfur - Thiophene;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The Ag-Y/MIL-101 adsorbents were successfully prepared via loading Ag and Y onto MIL-101. The adsorbents were characterized by XRD, SEM-EDS, BET and TG-DTG methods. The effects of the loading order and concentrations of metals, the amount of AgNO3 solution and Y(NO3)3 solution, and the loading residence time on adsorptive removal performance of thiophene were studied. The conditions of adsorptive desufurization were also optimized. The results show that the lattice structure of MIL-101 remains after the introduction of metals. Compared with MIL-101, the specific surface area and pore volume of Ag-Y/MIL-101 decrease. The optimal preparation conditions of Ag-Y/MIL-101 adsorbent are to load Ag first and then Y with 30 mmol/L of both the loading concentrations of Ag and Y ion, 1 mL of both the dosages of AgNO3 solution and Y(NO3)3 solution, and 8 h of the loading residence time. The optimal desulfurization conditions are 10 mL of model oil, 0.05 g of Ag-Y/MIL-101 dosage, the adsorption temperature of 60 ℃, and the adsorption time of 8 h. At these conditions, the thiophene desulfurization capacity over Ag-Y/MIL-101 reaches 21.7 mg/g. The Ag can significantly improve the adsorption sulfur capacity of MIL-101, and Y can significantly improve the adsorption selectivity of MIL-101. Therefore, the synergistic effect of Ag and Y in Ag-Y/MIL-101 adsorbent makes it have higher sulfur capacity and thiophene desulfurization selectivity than MIL-101. © 2020, Science Press. All right reserved.

引用

页码：240 / 248