Spectral Investigation of Intermolecular Hydrogen Bonding and S...鈭扥 Interaction in Diethylene Glycol + H2O + SO2 Systems

详细信息    查看全文

• 作者：Jianbin Zhang ; Qiang Li ; Zhenhua Guo ; Kaixing Li ; Mengdi Xu ; Na Zhang ; Tong Zhang ; Xionghui Wei
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2011
• 出版时间：January 19, 2011
• 年：2011
• 卷：50
• 期：2
• 页码：674-679
• 全文大小：291K
• 年卷期：v.50,no.2(January 19, 2011)
• ISSN：1520-5045

文摘

Diethylene glycol (DEG) + H₂O solutions (DEGWs) were used as the promising medium for the absorption processes of SO₂. In this work, when UV, FTIR,¹H NMR, and fluorescence spectroscopic techniques were used for inspection of spectral changes of DEGWs with increasing SO₂ concentration, the results suggest that H₂O can interact with DEG by hydrogen bonds as the formation of 鈭扖H₂CH₂O(H)...鈭扝OH...鈭?and 鈭扖H₂鈭扖H₂鈭扥(CH₂鈭扖H₂鈭?...鈭扝OH...鈭?in DEGWs. Furthermore, SO₂ can interact with DEG in various DEGWs by hydrogen bonds as the formation of 鈭扖H₂CH₂OH...鈭扥SO...鈭?and the intermolecular S...鈭扥 interaction in the absorption processes of SO₂, which was not discussed in the previous similar systems. The results of this work can be used to provide an important absorption mechanism for the design and operation of the absorption and desorption process in flue gas desulfurization with potential industrial application of DEG aqueous solutions.