B01D11/0292

Cold extraction method for cannabinoids and terpenes from cannabis by organic solvents

The invention relates to methods of producing extracts from cannabis plant material, where the extracts comprise cannabinoids and terpenes. The methods comprise extracting fresh or dried plant material with a cold organic solvent. The methods allow for the extraction of cannabinoids and terpenes, while leaving behind impurities such as waxes and chlorophyll that are commonly found in extractions with room temperature (RT) or warm solvent extraction methods. The methods can produce extracts having more than 90% cannabinoids.

PROCESS TO REMOVE ASPHALTENE FROM HEAVY OIL BY SOLVENT

Embodiments of the disclosure produce a method and system for deasphalting a hydrocarbon feed. The hydrocarbon feed and a first solvent is combined using a Taylor-Couette mixer to form a mixed stream. The mixed stream and a second solvent are introduced to an extractor to produce a first deasphalted oil stream and a pitch stream. The first deasphalted oil stream is introduced to a solvent recovery unit to recover the first solvent and the second solvent via a recovered solvent stream and to produce a second deasphalted oil stream.

PROCESS FOR MAKING A WATER SOLUBLE, FULL SPECTRUM HEMP OIL
20210275619 · 2021-09-09 · ·

A powdered, water-soluble Full Spectrum Hemp Oil is formed using organic materials and natural products to form a non-GMO, fast acting, whole plant hemp extract without harsh chemicals such as hexane. The Full Spectrum Hemp Oil may be extracted using CO2 concurrent gas extraction to avoid use of chemical additives.

CONTINUOUS HEMP SEED OIL EXTRACTION SYSTEM AND METHODS
20210171859 · 2021-06-10 ·

The disclosure relates to a Cannabis seed processing method and system comprising ultrasonic treatment of Cannabis seeds coupled to a membrane extraction system for efficient recovery of hemp seed oil.

SYSTEM, METHOD AND APPARATUS FOR PROCESSING ORGANIC MATERIAL
20210187413 · 2021-06-24 · ·

A system for processing organic material can include an extraction system to extract soluble compounds from the organic material using a compressed solvent to form diluted soluble compounds. The system also can include a filter system to pump and filter the diluted soluble compounds through a membrane filter. The membrane filter can remove a retentate comprising undesirable components. The membrane filter also can permit passage of a permeate comprising desirable components and the compressed solvent. The undesirable components comprise a larger molecular weight than the desirable components. The system can further include a depressurization system to depressurize the permeate and allow the compressed solvent to convert from a fluid to a gas. The depressurization system also can separate the desirable components from the gas.

VAPOR TRAP
20210129043 · 2021-05-06 ·

A method of capturing a vaporized component or components, and apparatus for same is provided. The method involves vaporization of desired components, and capture of the vaporized components in a material using a vapor trap device. Once captured, the material with the component stored therein may be used for any number of purposes including ingestion, topical administration, and/or aromatization.

METHOD OF MAKING A TOBACCO EXTRACT
20210153544 · 2021-05-27 ·

The invention provides Embodiments described herein include a method of making a tobacco extract comprising; (a) providing tobacco and an entrapment solvent in a partitioned vessel, wherein the tobacco and entrapment solvent are separated by the partition, and the vessel is configured such that the tobacco and entrapment solvent cannot contact each other; (b) flowing a supercritical extraction solvent through the vessel, wherein the extraction solvent and any dissolved substances can pass through the partition; whereby tobacco components are extracted from the tobacco into the extraction solvent and carried across the partition, wherein the extraction solvent contacts the entrapment solvent and tobacco components are transferred from the supercritical extraction solvent into the entrapment solvent.

METHOD OF MAKING A TOBACCO EXTRACT
20210153543 · 2021-05-27 ·

Embodiments described herein include a method of making a tobacco extract comprising; (a) contacting tobacco with an extraction solvent at a first temperature and first pressure which are selected such that the extraction solvent is supercritical, such that tobacco flavor and/or aroma components are extracted from the tobacco into the solvent; (b) separating the residual tobacco solids from the supercritical extraction solvent containing tobacco components; (c) exposing the extraction solvent containing tobacco components to conditions in a vessel at which the extraction solvent is subcritical, thereby releasing the tobacco components from the extraction solvent, (d) contacting the residual tobacco solids with an extraction solvent at a second temperature and second pressure which are selected such that the extraction solvent is supercritical, such that nicotine are extracted from the tobacco into the extraction solvent; and wherein the second temperature and/or second pressure is higher than the respective first temperature or first pressure; (e) separating the residual tobacco solids from the supercritical extraction solvent containing tobacco components; (f) exposing the extraction solvent containing tobacco components to conditions in a vessel at which the extraction solvent is subcritical, thereby releasing the tobacco components from the extraction solvent, wherein during step (f), the vessel contains an entrapment solvent which dissolves the tobacco components released from the extraction solvent, and wherein the entrapment solvent comprises an aerosol generating agent.

Purification and separation techniques for cannabinoids
11027218 · 2021-06-08 · ·

This disclosure relates to techniques and methods to isolate and purify cannabinoids, such as CBDV, CBD, CBC, THCV, THC, CBN, CBG, CBDA, THCA, or CBGA. Evaporation and sonicating techniques are used to isolate and purify cannabinoids, such as CBDV, CBD, CBC, THCV, THC, CBN, CBG, CBDA, THCA, or CBGA. The resulting compounds find further use within the devices and compositions described herein as well as for preparative and analytical methods.

EXPERIMENTAL METHOD FOR COAL DESULFURIZATION AND DEASHING USING PERMEATION AND SOLVATING POWER OF A SUPERCRITICAL FLUID

An experimental method for coal desulfurization and deashing using permeation and solvating power of a supercritical fluid includes the following steps. The coal sample is ground and loaded into an extraction kettle with a cover. An inlet valve and an outlet valve of the extraction kettle are opened to circulate the supercritical CO.sub.2 fluid in the extraction kettle. The extraction kettle is sealed. By adjusting a temperature and a pressure in the extraction kettle, the supercritical CO.sub.2 fluid is kept at its critical point and permeates the coal sample to dissolve organic sulfur, inorganic sulfur and ash in the coal sample. The extraction kettle is depressurized, and the temperature in the extraction kettle is adjusted to gasify the supercritical CO.sub.2 fluid. The organic sulfur, the inorganic sulfur and part of the ash are separated from the supercritical CO.sub.2 fluid and precipitated at a bottom of the extraction kettle.