期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 54, 期 33, 页码 8019-8024出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.5b01789
关键词
-
资金
- Boyuan Hengsheng High-Technology Co., Ltd., Beijing, China
Four kinds of deep eutectic solvents (DESs) based on choline chloride (ChCl) with ethylene glycol (EG), malonic acid (MA), urea, and thiourea as hydrogen bond donors were prepared and characterized. All these DESs show good thermal stability and can be stable at 363 K, which is beneficial for the application in flue gas desulfurization. Then, SO2 absorption capacities of these DESs were determined at different temperatures and SO2 partial pressures. The absorption results demonstrate that ChCl EG (1:2) and ChCl thiourea (1:1) DESs exhibit excellent absorption performances, and the absorption capacities are 2.88 and 2.96 mol SO2 per mol DES at 293 K and 1 atm, respectively. In addition, the SO2 absorption and regeneration experiments were conducted. All solvents can be regenerated at 343 K with N-2 bubbling, and the absorption capacities of DESs remain without a significant loss after six absorption and desorption cycles. What's more, the absorption mechanism of SO2 in these DESs were investigated by IR and H-1 NMR.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据