烟气脱硫
二苯并噻吩
化学
催化作用
共晶体系
傅里叶变换红外光谱
脯氨酸
柴油
硫黄
核化学
化学工程
有机化学
氨基酸
生物化学
工程类
合金
作者
Lingwan Hao,Meiri Wang,Wenjuan Shan,Changliang Deng,Wanzhong Ren,Zhouzhou Shi,Hongying Lü
标识
DOI:10.1016/j.jhazmat.2017.06.050
摘要
A series of L-proline-based DESs was prepared through an atom economic reaction between L-proline (L-Pro) and four different kinds of organic acids. The DESs were characterized by Fourier transform infrared spectroscopy (FT-IR), H nuclear magnetic resonance (1HNMR), cyclic voltammogram (CV) and the Hammett method. The synthesized DESs were used for the oxidative desulfurization and the L-Pro/p-toluenesultonic acid (L-Pro/p-TsOH) system shows the highest catalytic activity that the removal of dibenzothiophene (DBT) reached 99% at 60°C in 2h, which may involve the dual activation of the L-Pro/p-TsOH. The acidity of four different L-proline-based DESs was measured and the results show that it could not simply conclude that the correlation between the acidity of DESs and desulfurization capability was positive or negative. The electrochemical measurements evidences and recycling experiment indicate a good stability performance of L-Pro/p-TsOH in desulfurization. This work will provide a novel and potential method for the deep oxidation desulfurization.
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