Devices and methods for essential oils, terpenes, flavonoids, and hydrosols extraction
AssigneeEco-Logic Environmental Engineering Inc.
InventorDavid Nahmad
Life of this patent
Estimating the term…
Abstract
Devices, systems, and methods are presented that employ high-surface gaseous solvent extraction of terpenoids, essential oil, and/or flavonoids from a liquid raw material at controlled temperature and pressure conditions. In some embodiments, the extraction is based on a rotary or falling film evaporator in which a steam jet is directed at a heated liquid film of raw material at elevated temperatures and reduced pressure.
Claims20
An extraction device for terpenes, essential oils, and/or flavonoids from a hemp crude oil or a cannabis crude oil, comprising:
- a rotary evaporator further comprising
- a sample receiving compartment containing or comprising a contact surface, wherein the contact surface is configured to retain a thin film of the hemp or cannabis crude oil that comprises terpenes, essential oils, and/or flavonoids;
- a solvent source configured to generate from a liquid solvent a gaseous solvent phase;
- a conduit fluidly coupled to the solvent source and the sample receiving compartment and configured to deliver the gaseous solvent phase from the solvent source to the contact surface;
- and
- a condenser configured to receive and condense the gaseous solvent phase and any entrained terpenes, essential oils, and/or flavonoids therein after delivery of the gaseous solvent phase to said contact surface.
A method of extracting a value product contained in a plant-based crude oil, wherein the value product is a product other than a cannabinoid, and wherein the crude oil is a solvent extraction product from the plant from which the solvent has been removed and contains no added dispersing medium, comprising
- forming on a contact surface a thin film of the crude oil;
- contacting the thin film on the contact surface with a gaseous solvent to thereby entrain at least some of the value product in the gaseous solvent;
- removing the gaseous solvent and entrained value product from the contact surface;
- and
- condensing the gaseous solvent and entrained value product.
A method of extracting terpenes, essential oils, and/or flavonoids from a hemp crude oil or a cannabis crude oil, wherein the crude oil is a solvent extraction product from hemp or cannabis from which the solvent has been removed and contains no added dispersing medium, comprising:
- forming on a contact surface a thin film of the hemp or cannabis crude oil;
- contacting the thin film on the contact surface with a gaseous solvent to thereby vaporize and entrain at least some of the terpenes, essential oils, and/or flavonoids in the gaseous solvent;
- removing the gaseous solvent and entrained terpenes, essential oils, and/or flavonoids from the contact surface;
- and
- condensing the gaseous solvent and entrained terpenes, essential oils, and/or flavonoids.
A method of extracting terpenes, essential oils, and/or flavonoids from a hemp or cannabis crude oil, comprising:
- forming on a contact surface a thin film of the hemp or cannabis crude oil;
- contacting the thin film on the contact surface with a gaseous solvent to thereby vaporize and entrain at least some of the terpenes, essential oils, and/or flavonoids in the gaseous solvent;
- removing the gaseous solvent and entrained terpenes, essential oils, and/or flavonoids from the contact surface;
- and
- condensing the gaseous solvent and entrained terpenes, essential oils, and/or flavonoids,
- wherein the contacting is performed at reduced pressure and/or elevated temperature, and
- wherein the reduced pressure is between 10 and 700 Torr and/or wherein the elevated temperature is between 30 and 65° C.
Dependencies are inferred from the claim text.