摘要
对物质在超临界流体中溶解度的计算方法进行了简要评述。重点就Chrastil和delValle-Aguilera所提出的半经验关联式作了深入分析和比较。认为delValle-Aguilera公式源于Chrastil公式，但比Chrastil公式在关联实验数据时具有更为广泛的物理含义和适用性。特别对于植物籽油在超临界CO2中的溶解度计算就是成功的例证。最后，采用连续式测量方法，在10-30MPa和303-323K条件下，实测了沙棘籽油在超临界CO2中的溶解度数据。用delValle-Aguilera公式的形式对实验结果进行关联，给出了计算参数。所提出的计算公式，在上述实验条件范围内，最大相对误差小于6％。
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 less than 6%.
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2006年第1期126-129,共4页
Journal of Chemical Engineering of Chinese Universities
基金
辽宁省博士启动基金资助项目(20031072)。
关键词
超临界流体
溶解度数据
沙棘籽油
二氧化碳
supercritical fluids
solubility data
Hippophae Rhamnoides L. seed oils
carbon dioxide
