| 초록 |
The maximum solubility of methane was determined in aqueous solution of Al2(SO4)3, MgSO4, K2SO4, Na2SO4, AlCl3, MgCl2, KCl, NaCl, MgBr2, KBr, and NaBr with various concentration (1, 3 and 5 wt%) at ambient pressure. Salting-out effect was observed in all electrolyte solutions, providing lower solubility of methane compared to that in pure water. Electrolyte solutions comprising cations/anions with high charge valency and small ionic radius exhibited stronger salting-out effect due to large charge density of the corresponding ions. Furthermore, anions influenced largely on the salting-out effect compared to cations. Scaled particle theory was introduced to corroborate the trend of the experimental solubility of methane in electrolyte solutions. |
