| 聚乙二醇及其水溶液吸收SO_2机理研究 |
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| 引用本文： | 张建斌,李强,刘占英,白杰,张通,魏雄辉.聚乙二醇及其水溶液吸收SO_2机理研究[J].化学工程,2010,38(12). |
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| 作者姓名： | 张建斌 李强 刘占英 白杰 张通 魏雄辉 |
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| 基金项目： | 内蒙古自治区高等学校科学研究项目 |
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| 摘 要： | 在低浓度SO2的吸收过程中,聚乙二醇(PEG)及其水溶液(PEGW)对SO2有较强的吸收能力,文中力图通过现代光谱技术研究聚乙二醇及聚乙二醇水溶液对低浓度SO2的吸收机理。紫外光谱、红外光谱、核磁共振谱、荧光等光谱结果表明:在聚乙二醇及聚乙二醇水溶液吸收SO2的过程中,聚乙二醇和SO2的相互作用主要是分子间氢键及S…O配位作用,键力较弱,有利于SO2吸收后的溶液以分子形式解吸SO2。研究结果将为聚乙二醇及聚乙二醇水溶液在烟气脱硫工业上的应用提供重要的理论依据。
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| 关 键 词： | 烟气脱硫 聚乙二醇 氢键 硫氧配位 |
Absorption mechanism of SO2 in polyethylene glycol and its aqueous solution |
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| ZHANG Jian-bin,LI Qiang,LIU Zhan-ying,BAI Jie,ZHANG Tong,WEI Xiong-hui.Absorption mechanism of SO2 in polyethylene glycol and its aqueous solution[J].Chemical Engineering,2010,38(12). |
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| Authors: | ZHANG Jian-bin LI Qiang LIU Zhan-ying BAI Jie ZHANG Tong WEI Xiong-hui |
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| Abstract: | Polyethylene glycol(PEG) and its aqueous solution(PEGW) own strong capabilities to absorb dilute SO2.The present work is mainly focused on showing the interaction of PEG and PEGW with dilute SO2.When PEGWs were used to absorb SO2,conventional UV,FTIR,1H-NMR and fluorescence spectroscopic results suggest that SO2 can interact with PEG by intermolecular hydrogen bonding and S…O ligand interaction,which are weak but they benefit the absorption and desorption of SO2.The research result can be used to provide important theoretical basis for the design and operation of the absorption and desorption in flue gas desulfurization processes with potential industrial application of PEGW. |
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| Keywords: | flue gas desulfurization polyethylene glycol hydrogen bond S…O ligand interaction |
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