화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.12, 3493-3503, December, 2016
DOI10.1007/s11814-016-0211-6  Export Citation
Experimental solubility and absorption mechanism of dilute SO2 in aqueous diethylene glycol dimethyl ether solution
Qiuxia Xu, Jianbai Xiao1, Jianbin Zhang†, and Xionghui Wei1, †
  • College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, China
  • 1Department of Applied Chemistry, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China
E-mail:,
SO2 absorption capabilities of DEGDME+H2O system with different compositions were systemically investigated. The DEGDME+H2O system exhibited superior SO2 absorption capability and optimal desorption property with a desorption rate of higher than 94% under the desorption conditions. In addition, it has been demonstrated that the DEGDME+H2O system possessed remarkable SO2 absorbing and releasing capability after multiple recycles. Moreover, GLE data were measured for dilute SO2 in the system of DEGDME+H2O, in which SO2 partial pressures were determined in the range of 0 to 140 Pa. By fitting of GLE data, HLC, ΔH, ΔS and ΔG of SO2 absorption process were obtained. UV, FTIR, 1H-NMR, and 13C-NMR spectra of absorbing systems in the SO2 absorption processes were studied to elucidate the absorption mechanism. On the basis of the spectral results, the intermolecular hydrogen bonding and S...O interaction between SO2 with the absorption system were discussed.
Keywords:Gas-liquid Equilibrium;Diethylene Glycol Dimethyl Ether;SO2;Thermodynamic Parameter;Absorption Mechanism
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