Efficient and reversible separation of NH3 by deep eutectic solvents with multiple active sites and low viscosities

被引:0
作者
Jiayin Zhang [1 ]
Lu Zheng [1 ]
Siqi Fang [1 ]
Hongwei Zhang [1 ]
Zhenping Cai [1 ]
Kuan Huang [1 ,2 ]
Lilong Jiang [1 ,2 ]
机构
[1] National Engineering Research Center of Chemical Fertilizer Catalyst(NERC-CFC), College of Chemical Engineering, Fuzhou University
[2] Qingyuan Innovation Laboratory
基金
中国国家自然科学基金;
关键词
D O I
暂无
中图分类号
TQ113.2 [合成氨工业];
学科分类号
0817 ;
摘要
The efficient separation and collection of ammonia(NH3) during NH3synthesis process is essential to improve the economic efficiency and protect the environment.In this work,ethanolammonium hydrochloride(EtOHACl) and phenol(PhOH) were used to prepare a novel class of deep eutectic solvents(DESs) with multiple active sites and low viscosities.The NH3separation performance of EtOHACl+PhOH DESs was analyzed completely.It is figured out that the NH3absorption rates in EtOHACl+PhOH DESs are very fast.The NH3absorption capacities are very high and reach up to 5.52and 10.74 mol·kg-1at 11.2 and 100.4 kPa under 298.2 K,respectively.In addition,the EtOHACl+PhOH DESs present highly selective absorption of NH3over N2and H2and good regenerative properties after seven cycles of absorption/desorption.The intrinsic separation mechanism of NH3by EtOHACl+PhOH DESs was further revealed by spectroscopic analysis and quantum chemistry calculations.
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页码:97 / 105
页数:9
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