What is steam distillation PDF?
What is steam distillation PDF?
Steam distillation is a separation process for temperature sensitive materials like oils, resins, hydrocarbons, etc. which are insoluble in water and may decompose at their boiling. point. This process, as the most widely used method for plant EOs extraction, has been.
What is steam distillation with diagram?
Steam Distillation is a separation process for temperature sensitive substances. It is a particular type of distillation. Another way round it is a method for separating miscible liquid base depending upon their volatilities. For instance aromatic compounds. It plays a vital role in some industrial regions.
What equipment is used in steam distillation?
This all-glass, 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). Steam is produced in the boiling by heating distilled water with the hot plate.
What instrument is used in steam distillation?
On a lab scale, steam distillations are carried out using steam generated outside the system and piped through macerated biomass or steam generated in-situ using a Clevenger-type apparatus.
What is maximum temperature needed for steam distillation Why?
Temperatures required for optimal steam distillation typically fall between 140° F and 212° F (60° C and 100° C). One benefit of steam distillation is that the temperature can be continuously adjusted and precisely controlled to ensure that the system always remains within the optimal temperature range.
What are the parts of a distillation apparatus?
The apparatus used consists of three major parts: distillation flask (or pot ) to heat the mixture and volatilize the components, a condenser to cool the vapors back to liquid state, and a collection vessel.
What equipment is used in distillation?
The distillation apparatus, commonly called a ‘still’, consists of a vessel for plant material and water, a condenser to cool and condense the vapour produced and a method of collection, or ‘receiver’.
What is the basic principle of steam distillation?
The principle behind the steam distillation process is that when the heating of a mixture of two or more immiscible liquids takes place, the vapour pressure exerted by the system increases. This is because it now becomes the sum of the vapour pressures of all of the components of the mixture combined together.
What is the limitation of steam distillation?
Disadvantages: More time consuming due to due to the low pressure of rising steam. Water on the substance to be distilled causes it to vaporize in delayed time [10].