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大豆油脱臭馏出物在超临界CO₂中的高压相平衡

High-Pressure Phase Equilibrium of Deodorized Soybean Oil in Supercritical CO₂

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【Author】 LIU Yun1, DING Xiao-lin2, ZHU Dan-hua1(1. College of Fool Science and Technology of Zhejiang University, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Science, Zhejiang Hangzhou 310021, China; 2. School of Food Science and Technology, Southern Yangtze University, Jiangsu Wuxi 214036, China)

【机构】浙江大学食品学院；江南大学食品学院；浙江大学食品学院浙江省农业科学院作核所；浙江杭州310021江南大学食品学院；江苏无锡214036；浙江省农业科学院作核所；浙江杭州310021；

【摘要】利用气液交替循环装置,在40～60°C、9.7～16.2MPa范围内等温、等压和等密度条件下分别测定了大豆油脱臭馏出物预处理产物在超临界CO2中的高压相平衡,并比较了不同类型植物油脂在超临界CO2中的溶解度。结果表明:大豆油脱臭馏出物经甲酯化和甲醇解处理后,溶解度将进一步加大。最后运用BP神经网络模型对溶解度实验数据进行了关联和预测,结果令人满意。更多还原

【Abstract】 A gas-liquid circulation apparatus is employed to determine the high pressure phase equilibrium data for deodorized soybean oil in supercritical CO2 under isothermal, isobaric and isochoric conditions at the pressure range of 9.7～ 16.2 MPa and the temperature range of 40～60℃. The solubilities of different plant oils in supercritical CO2 are compared. The results show that the solubility of deodorized soybean oil in supercritical CO2 is increased after esterification and alcoholysis. Finally the back-propagation artificial neural network (BPANN) is employed to calculate and correlate the solubility experiment data, and the results are satisfactory.更多还原