摘要
采用以错流代替常用的串级试验（假逆流）的方法对糠醛精制两段萃取（即两段精制）进行了初步研究，在此基础上采用微型离心萃取器对两段糖醛精制进行了进一步的研究．研究结果表明，溶剂分流两段精制与一段精制相比能够在保证相同精制油质量的前提下，大幅度提高精制油收率及降低总溶剂比，而串联的两段精制较之一段精制具有在相同溶剂比时，进一步改善精制油的质量，但精制油收率有所下降．采用错流和微型离心萃取器的方法用于二段精制的研究所得结论是一致的，理论及试验结果都表明两段精制要优于一段精制．
Based on the theory of solvent extraction, cross current extraction and centrifugal micro extractor were used to simulate the counter current extraction in the study of furfural refining. It was found that 2-column extraction was better than 1-column, moreover, the split streams of the solvent for 2-column extraction were preferable to the 2-column in series.
出处
《石油炼制与化工》
CAS
CSCD
1996年第3期26-29,共4页
Petroleum Processing and Petrochemicals
关键词
润滑油料
糠醛
精制装置
萃取
lubricant stock, cross current, countercurrent, furfural refining unit
