High-pressure phase equilibria for the binary system carbon dioxide + benzyl alcohol

详细信息    查看全文

• 作者：Sha Liao ; Yucui Hou ; Shengyun Li ; Xiaoting Chen ; Weize Wu
• 关键词：Phase behavior ; Carbon dioxide ; Benzyl alcohol ; Three-phase equilibrium ; Peng– ; Robinson EoS
• 刊名：The Journal of Supercritical Fluids
• 出版年：2010
• 出版时间：November 2010
• 年：2010
• 卷：55
• 期：1
• 页码：32-36
• 全文大小：269 K

文摘

The phase equilibria of the carbon dioxide + benzyl alcohol system were measured at 298.15, 306.35 and 313.15 K, under pressures from 1.03 to 16.15 MPa. An upper critical end point (UCEP) of the binary system was identified at 307.45 K and 7.77 MPa and three-phase equilibria were observed along the liquid–liquid–vapor (LLV) equilibrium line between 279.75 and 307.45 K. The experimental data were correlated well by the Peng–Robinson equation of state with two binary parameters. According to the experimental results, the phase behavior of the carbon dioxide + benzyl alcohol system appears to belong to Type-III according to the classification of van Konynenburg and Scott.