Miljana S. Marković, N. Boskovic-Vragolovic, M. Ristić, V. Pavićević, V. Veljković, Svetomir Ž. Milojević
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引用次数: 6
Abstract
This paper deals with fractionation of the essential oil from juniper (Juniperus communis L.) berries by hydrodistillation (HD) and simultaneous hydrodistillation and rectification (SHDR) at atmospheric pressure. A rectification column was filled with the NORMAG packing A type and had 36 theoretical stages. In the present study, higher essential oil yield was obtained by HD (1.34 mass %) than by SHDR (1.17 mass %). However, mass fraction distributions of monoterpene hydrocarbons (MHs), oxygenated monoterpenes (OMs) and sesquiterpene hydrocarbons (SHs), observed for the two separation methods, differed from each other. In the SHDR process increased contents of high volatile components (predominantly MHs) were obtained in the initial fractions as well as increased contents of low volatile components (dominantly SHs) in the last fractions. Also, this method increased the separation degree of OMs.
研究了常压加氢精馏(HD)和同步加氢精馏(SHDR)对杜松(Juniperus communis L.)浆果精油的分离。精馏塔采用NORMAG填料A型填充，共36个理论级。在本研究中，HD(1.34质量%)比SHDR(1.17质量%)获得更高的精油得率。然而，两种分离方法所观察到的单萜烯烃(MHs)、氧化单萜烯(OMs)和倍半萜烯烃(SHs)的质量分数分布却存在差异。在SHDR过程中，初始馏分中高挥发性成分(主要是hs)的含量增加，而末馏分中低挥发性成分(主要是SHs)的含量增加。同时，该方法提高了OMs的分离度。
期刊介绍：
The Journal Hemijska industrija (abbreviation Hem. Ind.) is publishing papers in the field of Chemical Engineering (Transport phenomena; Process Modeling, Simulation and Optimization; Thermodynamics; Separation Processes; Reactor Engineering; Electrochemical Engineering; Petrochemical Engineering), Biochemical Engineering (Bioreactors; Protein Engineering; Kinetics of Bioprocesses), Engineering of Materials (Polymers; Metal materials; Non-metal materials; Biomaterials), Environmental Engineeringand Applied Chemistry. The journal is published bimonthly by the Association of Chemical Engineers of Serbia (a member of EFCE - European Federation of Chemical Engineering). In addition to professional articles of importance to industry, scientific research papers are published, not only from our country but from all over the world. It also contains topics such as business news, science and technology news, information on new apparatus and equipment, and articles on environmental protection.
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