超亚临界流体CO_2萃取32号机油

EXTRACTION OF NO.32 MACHINE OIL WITH SUPERCRITICAL AND SUBCRITICAL CARBON DIOXIDE

使用Ｃｈｒａｓｔｉｌ模型对前文［１］报导的３２号机油在超、亚临界ＣＯ２中的溶解度数据进行了关联，给出了关联参数。在自行研制的间歇式萃取装置上，压力为７．４～１４．９ＭＰａ的范围内，使用超、亚临界ＣＯ２对３２号机油进行了萃取试验。

The solubility data of No.32 lubricant in supercritical and subcritical carbon dioxide reported previously by authors were correlated with Chrastil model . No.32 lubricant were extracted with carbon dioxide under the pressure ranging from 7.4 to 14.9 MPa,by use of batch apparatus, in which extractor's temperature was set at 298.2 K, while separator's temperatures were set at 353.2 K and 368.2 K respectively. Relations between the yields of oil and the operational parameters were obtained and discussed.