In water hydro distillation the plant material is almost entirely covered with water as. The existing solution of distillation equipment was improved with two innovations. Consider practical conditions for vacuum unit modeling. The oil must be steam volatile for steam distillation to be feasible. Direct steam distillation also referred sometimes as dry steam distillation plant material is supported on the grid and saturated steam from outside source ie boiler in injected through steam coil steam in a field distillation unit is at atmospheric pressure and hence its temperature can be maximum 100oc. These are identical in the basic construction but differ in terms of operating comfort and degree of automation. A mobile essential oil distillation unit for the extraction of oils. A portable steam distillation unit for essential oil crops. Essential oil yields from the plant population study were achieved using a pilotscale 500 liter portable steam distillation unit alkire and simon 1992.
Extraction of essential oils by steam distillation pdf 6ngeve03d2lv. Background this allglass, vertical steam distillation unit, consisting of a hot plate, boiling flask, biomass flask, still head, condenser and receiver, is used for dry steam distillation of plant material see equipment diagram below. The process of steam distillation separates the substances of a mixture through evaporation, which then involves condensing the vapor back into liquid, taking advantage of the fact that different elements or compounds have different boiling points. Pdf essential oil distillation plant project atnkut.
An experimental steam distillation unit has been designed, built, and tested for the extraction of essential oils from peppermint and spearmint. A steam distillation apparatus is shown in figure 5. Another way round it is a method for separating miscible liquid base depending upon their volatilities. A plastic tubewas used to drain water vapor from steam generator to distillation flask and to drain steam containing essential oil to the condenser. In the world today, there are various plant which are known to have various uses to man. The unit, using a gal 510liter distillation tank, is intermediate in size between laboratoryscale extractors and. In this video she uses juniper for the demonstration. Stepbystep procedures for steam distillation chemistry. Typical crude distillation with steam strippers fig. Enhance participant understanding of plant organic chemistry.
Pdf an experimental steam distillation unit has been designed, built, and tested for the extraction of essential oils from peppermint and spearmint find, read. Depending on requirements, the user can choose between five steam distillation units. The essence of this plants could be extracted as volatile oils. Extraction of essential oils using steam distillation ethesis nit.
It has wide uses, from water purification to extracting oils from organic matter and refining. Thedistillation was conducted in clevenger apparatus in which boiling. Hydrodistillation and steam distillation from aromatic plants. Steam distillation is the most widely accepted process for the large scale production of volatile essential oils from herbaceous material and is also regarded as the standard practice throughout the flavour and fragrance industry. Pdf a portable steam distillation unit for essential oil. The first one refers to the supply of steam from upper side into the distillation unit. Watch as laura explains the process of how to use steam distillation to make essential oil.
Steam is produced in the boiling by heating distilled water with the hot plate. Students construction of a simple steam distillation apparatus and. Pdf a portable steam distillation unit for essential oil crops. Extract essential oils from biomass using steam distillation equipment. Steam distillation is used in the extraction of essential oil from the plant material.
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