Device for extracting volatile oils contained in organic raw material via steam stripping and internal distillation method

A method of internal steam distillation for extraction of volatile oils present in organic matter carried out by means of a modular steam distillation device having a single body in which the method is performed, the single body comprising a lower module and an upper module, wherein the lower module comprises a boiler, a chamber, and a still and the upper module comprises a condenser lid, a collector ring and an evacuation tube, the method comprising:

• producing a vacuum effect in the boiler disposed in the modular steam distillation device by a valve with an internal profile in a form of a Venturi tube disposed in the modular steam distillation device;
• boiling water at a low temperature approximately between 60° C. and 85° C. in the boiler;
• conducting heat from a stove the chamber by means of a heat conducting disc disposed inside the boiler;
• generating dry steam in the boiler;
• heating the dry steam in said chamber to approximately between 110° C. and 115° C.;
• injecting the dry steam as a pressurized flow into the still through the valve, wherein the valve connects the chamber and the still;
• preheating the still and a raw material contained in the still;
• volatizing aromatic oils contained in the raw material in the still generating mixed gases;
• ascending the mixed gases from the still to the condenser lid;
• cooling an internal space of the condenser lid by means of cold water;
• condensing the mixed gases into distilled liquids by contacting the mixed gases with a cone of the condenser lid;
• draining the distilled liquids from the cone to the collector ring;
• collecting the distilled liquids on the collector ring;
• directing the distilled liquids to the evacuation tube;
• and
• evacuating the distilled liquids from the device through the evacuation tube.

A modular steam distillation device for the extraction of volatile substances contained in raw materials of organic or inorganic nature, comprising a lower module including:

• an external vessel;
• an intermediate vessel disposed within the external vessel;
• a boiler comprising an internal surface of the external vessel and an external surface of the intermediate vessel;
• an internal vessel disposed within the intermediate vessel;
• a chamber comprising an internal surface of the intermediate vessel and an external surface of the internal vessel;
• and
• a valve having an internal profile in a form of a Venturi tube configured for dosing and directing a steam flow from the chamber into the internal vessel, wherein the valve is disposed at a bottom of the internal vessel.