Fractionation of Java Citronella Oil and Citronellal Purification by Batch Vacuum Fractional Distillation

12th Joint Conference on Chemistry

Eden, W.T.^1,2 ; Alighiri, D.^1,2 ; Cahyono, E.^1,2 ; Supardi, K.I.^1,2,3 ; Wijayati, N.^1,2

Essential Oil Study Center, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia^1

Chemistry Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia^2

Department of Postgraduate Program, Universitas Negeri Semarang, Indonesia^3

关键词: Batch modes;    Citronellol;    Cymbopogon winterianus;    Fractional distillation;    GC-MS analysis;    P-menthane;    Reduced pressure;    Reflux ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/349/1/012067/pdf
DOI  :  10.1088/1757-899X/349/1/012067

来源: IOP

【 摘 要 】

The aim of this work was to assess the performance of a vacuum fractionating column for the fractionation of Java Citronella Oil (Cymbopogon winterianus) and citronellal purification during batch mode operation at vacuum -76 cmHg and reflux ratios 5:1. Based on GC-MS analysis of Java Citronella Oil is known that citronellal, citronellol, and geraniol has yielded 21,59%; 7,43%; and 34,27%, respectively. Fractional distillation under reduced pressure and continued redistilled are needed to isolate the component of Java Citronella Oil. Redistilled can improve the purity, then distillate collected while the temperature changed. In the first distillate yielded citronellal with a purity of 75.67%. The first distillate obtained residue rhodinol product will then be carried back to separation into citronellol and geraniol. The purity of citronellol reached 80,65% purity, whereas geraniol reached 76.63% purity. Citronellal Purification resulting citronellal to 95.10% purity and p-menthane-3,8-diol reached 75.95% purity.