Solubility for dilute sulfur dioxide in binary mixtures of N,N-dimethylformamide+Ethylene Glycol at T=308.15K and p=122.66kPa

Absorption, desorption and spectroscopic investigation of sulfur dioxide in the binary system ethylene glycol+dimethyl sulfoxide

“…When SO 2 in the gas phase was designed at y SO 2 = 500 ppmv, the solubility of SO 2 in the mixtures presented an extreme minimum at the mass fraction of w 1 = 1.00 of 3.26 mol m À3 , and the pure DMSO showed that the strong capabilities to dissolve SO 2 and the solubility was 72.61 mol m À3 . Compared with the previous data [39][40][41][42][43], the EG + DMSO mixture showed a stronger solubility of SO 2 . Meanwhile, it was confirmed that the EG (1) + DMSO (2) mixture (w 1 = 30 %) could be used as the effective absorption solution, and the corresponding desorption efficiency of SO 2 in the mixture arrived at 97.6%, also, SO 2 desorption runs smoothly no significant drop in SO 2 absorption was observed after fivesuccessive absorption-desorption cycles.…”

Effect of Solvents and Temperature on Interactions in Binary and Ternary Mixtures of 1-Butyl-3-methylimidazolium Trifluoromethanesulfonate with Acetonitrile or/and N,N-Dimethylformamide

“…The experimental data of densities, speeds of sound, and dynamic viscosities of pure [BMIM]­[CF 3 SO 3 ], ACN, DMF, and their binary mixtures [BMIM]­[CF 3 SO 3 ] + ACN, [BMIM]­[CF 3 SO 3 ] + DMF, and DMF + ACN in temperature range T = (298.15 to 323.15) K with an interval of 5 K and at pressure 0.1 MPa are reported in Tables – . The measured values of ρ, u and η of pure components [BMIM]­[CF 3 SO 3 ], ACN, and DMF have been compared with the literature values − ,− and reported in Table S1 (Supporting Information). The percent deviations [100·[( Y lit – Y expt )/ Y lit ]] ( Y = ρ, u , and η)) for ρ in the case of [BMIM]­[CF 3 SO 3 ], ACN, and DMF are found to be 0.00 to −0.54%; 0.02 to −0.06%, and 0.11 to −0.08%, respectively (see Figure ).…”

Thermodynamic properties and spectral investigation of dilute sulfur dioxide in binary system N,N-dimethylformamide+diethylene glycol

“…However, the high expense and viscosity of ionic liquids limited their uses in industry application. In our previous work [11][12][13], Wei and his co-workers found that the binary systems [ 4 0 _ T D $ D I F F ] N, N-dimethylformamide (DMF) + ethylene glycol derivatives show strong solubility to SO 2 and SO 2 could be mostly desorbed from these mixtures; and then, the absorbent solution is used again.…”