Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6659704 | The Journal of Chemical Thermodynamics | 2018 | 26 Pages |
Abstract
The solubilities and diffusion coefficients of 1,1,1,3,3-pentafluoropropane (R245fa), 1,1,1,2,3,3,3-heptafluoropropane (R227ea) and 1,1,1,3,3,3-hexafluoropropane (R236fa) in 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([HMIM][Tf2N]) were determined experimentally along five isotherms (303.15, 313.15, 323.15, 333.15 and 343.15â¯K) with pressures from 0.01 to 0.50â¯MPa. The solubility measurements were carried out using the isochoric saturation method. A semi-infinite volume method was used to calculate diffusion coefficient via the time-dependent pressure-decay data. NRTL model was used to correlate the gas solubility data of R245fa, R227ea and R236fa in [HMIM][Tf2N] with the average absolute relative deviations less than 1.0%, while Wilke-Chang equation was used to correlate the diffusion coefficient data with the average absolute relative deviations less than 9.7%.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Xiangyang Liu, Pei Pan, Feng Yang, Maogang He,