基于氢键作用的含酚油混合物中酚的高效分离  

Efficient separation of phenols from phenols-containing oil mixtures via forming hydrogen bonds

作　　者：纪柚安 赵晓胜 刘青 杨玉凤 韩江则[1] JI You-an;ZHAO Xiao-sheng;LIU Qing;YANG Yu-feng;HAN Jiang-ze(College of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;College of Chemistry and Chemical Engineering,Cangzhou Normal University,Cangzhou 061001,China;Division of Materials Science and Chemical Engineering,Yokohama National University,Yokohama 240-8501,Japan)

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]沧州师范学院化学与化工学院,河北沧州061001 [3]横滨国立大学材料科学与化学工程系,日本横滨240-8501

出　　处：《燃料化学学报》2021年第11期1584-1591,共8页Journal of Fuel Chemistry and Technology

基　　金：河北科技大学人才引进科研启动基金(81/1181381);河北省高等学校科学技术研究重点项目(ZD2021320)资助。

摘　　要：本文采用米屈肼(THP)、吉拉尔特试剂T、吉拉德试剂P基于氢键作用分离油中的苯酚。结果发现,三种分离剂均可与苯酚形成低共熔溶剂(DES)而分离苯酚,其中米屈肼对苯酚的分离效率最高,可达96.5%;油中残余苯酚浓度低至1.3 g/L;10 min即可完成分离;苯酚的初始浓度不影响分离后油中最低残余苯酚浓度(约8.8 g/L)。采用正己烷洗涤的方法去除DES中夹带的中性油。结果发现,DES中的中性油与苯酚质量比降至0.04,说明酚产品纯度将大幅提高。米屈肼可再生并重复使用五次,性质不变。FT-IR表征发现米屈肼与苯酚间存在氢键作用。In this work,the separation of phenol from oil mixtures was proposed by using mildronate(THP),Girard's Reagent T,and Girard's Reagent P.The results showed that the mentioned separation agents could form deep eutectic solvent(DES)with phenol and then separate phenol.The highest separation efficiency of phenol was 96.5%by THP,and the residual phenol content in oil was as low as 1.3 g/L;the separation could be finished in 10 min;the initial phenol content had no effect on the minimum residual phenol content(about 8.8 g/L)in oil after separation.An n-hexane washing method was used to remove the neutral oil entrained in DES.The results showed that the mass ratio of neutral oil to phenol in DES was reduced to 0.04,indicated that the purity of phenol product was greatly improved.THP was renewable and its properties remained unchanged after be reused for 5 times.Finally,FT-IR spectra showed that hydrogen bonds were formed between THP and phenol.

关 键 词：酚类化合物 分离 低共熔溶剂 中性油 

分 类 号：TQ523.59[化学工程—煤化学工程]