Background & Aim: This research, order to study of extraction and investigation on the essential oil of Anthemis hyalina DC. were conducted.   Material & Methods: The volatile constituents of Anthemis hyalina DC. were isolated by hydro-distillation and analyzed by GC and GC/MS. In this study, samples were collected from Qazvin on June 2008.   Results & Discussion:...

Background & Aim: The major aim of this study was to determine the antibacterial activity of the essential oils from five medicinal plants. Experimental: The hydro-distillation essential oils from five plant species, including Satureja bachtiarica, Zataria multiflora, Thymus daenensis, Thymus carmanicus, and Ziziphora tenuior (Lamiaceae) which are e...

This paper is concerned with the computer-aided optimal design of reaction-distillation processes. The production of solvent 2,3-dimethylbutene-1 by isomerization of 2,3dimethylbutene-2 is considered as an innovative benchmark problem. Possible process candidates are a reactive distillation column, a reactor coupled to a nonreactive distillation column or a reactive reboiler with a nonreactive ...

In this paper, design and optimization procedures are developed for a conventional extractive distillation sequence and a thermally coupled extractive distillation scheme. The proposedmethodologies detect the optimal values of the design variables in order to guarantee theminimumenergy consumption. It was found that the optimumenergy consumption can be related to the minimum total annual operat...

This paper presents the retrofit of five conventional distillation trains for the separation of quaternary mixtures of hydrocarbons for feed compositions with high or low content of intermediate components. The retrofit implies the incorporation of liquid or vapour recycle streams among the conventional distillation columns. Each recycle stream removes one condenser or one reboiler. The introdu...

Essential oils are used in a wide variety of consumer goods such as detergents, soaps, toilet products, cosmetics, pharmaceuticals, perfumes, confectionery food products, soft drinks, distilled alcoholic beverages (hard drinks) and insecticides. The world production and consumption of essential oils and perfumes are increasing very fast. Production technology is an essential element to improve ...

Thermally coupleddistillation systems (TCDS) havebeenproposed toperformdistillation separation tasks with the incentive of achieving lower energy consumption levels with respect to conventional distillation sequences. In particular, the presence of recycle streams for TCDS schemes has influenced the notion that control problemsmight be expected during the operation of those systemswith respect ...

Encapsulated Salvia officinalis L. powder (SESP) was developed from extract obtained by supercritical fluid extraction (SFE), and it compared with commercial sage of hydro-distillation (HESP). The optimised conditions 30 MPa at 50 °C for laboratory scale SFE were found to generate the highest yield 40.96 ± 0.84%. later applied in upscaled extraction, which yielded about 30.10 1.33% extract. Lar...

Bellardia trixago (L.) All. (syn. Bartsia L.) is a hemiparasitic plant that mainly native to the Mediterranean area. Formerly, genus was considered be part of Scrophulariaceae family, but it currently classified as belonging family Orobanchaceae. species are used in traditional medicine by local people cure backache, menstrual problems and an antipyretic against human immunodeficiency virus. Va...

Bioethanol is among the most promising of biofuels because it has an energy content similar to gasoline while generating lower pollutant emissions than gasoline. But, in order to be used as an automotive fuel mixed with gasoline, ethanol must have less than 0.5 wt % of water. To achieve required ethanol purity, in light of the fact that the ethanol water mixture forms an azeotrope, unconvention...