沙棘籽油在超临界co2中溶解度的测定和关联-高校化学工程学报.pdfVIP

20 1 No.1 Vol.20 2006 2 Journal of Chemical Engineering of Chinese Universities Feb. 2006 1003-9015(2006)01-0126-04 CO2 , , , ( , 116012) Chrastil del Valle-Aguilera del Valle-Aguilera Chrastil Chrastil CO2 10~30MPa 303~323K CO2 del Valle-Aguilera 6% O645.12 TQ028.32 A The Determination and Correlation of the Solubility of Hippophae Rhamnoides L.Seed Oils in Supercritical Carbon Dioxide YIN Jian-zhong, LIU Run-jie, WEI Wei, XU Qin-qin (School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China) Abstract: The calculation method of solubilities of solid solutes in supercritical fluids was simply reviewed. Two semi-empirical calculation formulas were analyzed and compared with each other. It is found that del Valle-Aguilera’s formula is better than that of Chrastil’s and del Valle-Aguilera’s expression has more physical meaning than that of Chrastil’s in a wider temperature range. Especially, for the solubility of seed oils in SCCO2, del Valle-Aguilera’s formula is an important calculation approach. Finally, the solubility of Hippophae Rhamnoides L. seed oils (HRLSO) in supercritical carbon dioxide was measured by using a continuous setup under the the pressure range of 10~30 MPa and the temperature range of 303~323 K. Based on the experimental data, a formula that can be used to calculate the solubility of HRLSO in SCCO2 was presented. Under the above pressure and temperature range, the maximum absolute average relative deviation (AARD%) between the experimental data and the calculated ones is les