Experimental Investigation on the Solubility of Oxygen in Toluene and Acetic Acid

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• 作者：Xiankun Wu ; Zilei Deng ; Jiujuan Yan ; Zhongyang Zhang ; Feng Zhang ; Zhibing Zhang
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：June 11, 2014
• 年：2014
• 卷：53
• 期：23
• 页码：9932-9937
• 全文大小：296K
• 年卷期：v.53,no.23(June 11, 2014)
• ISSN：1520-5045

文摘

By using the dual vessel equilibrium method, the solubility of oxygen in toluene and acetic acid was experimentally investigated with pressure ranging from 0.1 to 1.0 MPa at temperatures from 293.1 to 383.1 K. The results show that the oxygen solubility either in toluene or in acetic acid increases with a rise in temperature. On the basis of the experimental data, Henry coefficients were derived and expressed as a function of temperature. At the same temperature, Henry coefficient for the oxygen鈥搕oluene system is lower than that for the oxygen鈥揳cetic acid system. Through analysis of the Gibbs energy (螖G⁰), partial molar enthalpy (螖H⁰), and the partial molar entropy (螖S⁰) of the solvation, we can know that solubilization of oxygen either in toluene or in acetic acid is an endothermic process. To correlate the experimental data, the Peng鈥揜obinson equation of state with the quadratic mixing rule was used for the two systems.