This disclosure describes systems, methods, and devices for phytochemical extraction. One example extraction system includes two solvent columns, a material column, and a dewaxing column. The solvent columns store and provide solvent for stripping target chemicals from plant material in the material column. The solvent mixed with target chemicals passes into the dewaxing column, where the target chemicals are separated from waxes and lipids. Cooling is applied to elements of the system by way of an open-loop CO2 refrigeration method. Solvent is moved from the solvent columns to the material column by creating a pressure differential between the two solvent columns.

Various aspects of this patent document relate to a method to extract an oil from a plant material using an apparatus by first exposing the plant material to a heated gas stream at a temperature sufficient to volatilize the oil from the plant material, and then rapidly cooling the gas stream to liquefy the oil.

A system for the extraction of essential oils from botanical matter housed within an extraction vessel, the system comprising: a transfer tank storing liquid and gaseous extraction fluid; a charge tank configured for storing liquid and gaseous extraction fluid, the charge tank being in fluid communication with the transfer tank; a transfer tank engagement valve selectively permitting fluid flow between the transfer tank and the charge tank; means for pressurizing the transfer tank; means for cooling the charge tank; wherein pressurizing the transfer tank transfers liquid phase extraction fluid to the charge tank, and cooling the charge tank increases a density of the liquid extraction fluid in the charge tank; wherein a transfer of extraction fluid from the charge tank to the extraction vessel occurs due to a pressure differential between the charge tank and the extraction vessel and without raising the temperature of the charge tank and without using a pump to transfer extraction fluid from the charge tank to the extraction vessel.

An extracting apparatus includes: a first phase transition section that causes a phase transition of an extraction solvent from a gas to a liquid; a second phase transition section that causes a phase transition of the extraction solvent from a liquid to a gas; a treatment tank that stores a treated material, and receives an inflow of the extraction solvent that has been liquefied in the first phase transition section; a first valve that is provided between the second phase transition section and the treatment tank; and a second valve that is provided between the first phase transition section and the treatment tank. The second phase transition section is connected with a recovery valve.

An apparatus for extracting essential oils and oleoresins from a plant material is disclosed. The apparatus comprises a circulation pump, a discharging pump, an extraction module, a reservoir, a first evaporator, and a first condenser. The discharge pump is fluidly connected to the circulation pump. The extraction module includes at least one extraction vessel. The reservoir is configured to store a solvent containing a C1 to C4 fluorinated hydrocarbon. In a short loop circulation mode the discharge pump pumps a solution comprising the solvent and one or more active components of the plant material dissolved therein from the bottom of the at least one extraction vessel, passing through the circulation pump, and then back to the top of the at least one extraction vessel.

A method for separating and recovering compounds from biomass is provided. In the method, an aqueous extraction fluid in essentially gaseous phase, such as steam, is propagated through a reaction area containing biomass feedstock. When extraction fluid advances through the biomass feedstock, in predetermined reaction conditions, a target compound separates from the essentially solid feedstock matter and travels, with the extraction fluid, towards the end of the reaction area, in where the target compound is recovered in the form of an essentially liquid medium. The method is beneficial for extracting long-chain hemicelluloses from cellulose-containing feedstocks.

An apparatuses used for the safe dispensation of compressed liquid/gas butane from a compressed liquid/gas butane can for use in mixing this liquid/gas with parts of a marijuana plant within a glass tube of the apparatus to thereby remove the THC from the marijuana plant and disposing it and the residual liquid/gasses into a capture member for further processing.

The present invention provides a solid phase extraction method using a micro device having a dam forming portion including a dam, the solid phase extraction method comprising the steps of: (i) injecting a solvent and a filler into the micro device, moving the solvent to the dam forming portion, the dam allowing the solvent to flow therethrough and preventing the filler from passing therethrough, and adsorbing a material to be separated onto the filler in the dam forming portion; and (ii) extracting, from the filler, the adsorbed material, wherein the micro device is rotated with respect to a central axis during one of steps (i) and (ii), and the rotation of the micro device is performed at an angular velocity defined by equation 1.

A continuous-flow extraction system and method for extracting oil from oil-bearing plant parts, or biomass, with liquid-phase hydrocarbon solvent in a continuous process, providing more than one extraction vessel so that one or more extraction vessels can be cleared of exhausted biomass and reloaded with biomass, while another one or more extraction vessels are undergoing the extraction process, optionally providing a de-waxer for use when needed, providing a primary jacketed separator vessel for flashing hydrocarbon solvent to a vapor phase and precipitating and collecting liquid plant extract, providing at least one secondary jacketed separator vessel for purification and refinement of vapor-phase hydrocarbon solvent and providing for re-liquefication of the solvent for the purpose of re-circulating and reusing the solvent, and providing for the heating, cooling, and pumping necessary to carry out the various steps.

A system for separating coal from iron oxide and sulfur comprises a first tank having crusher to grind the coal. Steam is directed into the first tank to mix with the coal to produce a maximum substrate area for chemolithotrophic bacteria and algal species to act upon. A mechanical pulverizer is fed with the coal and steam. A sieve and a second tank receiving the coal from the pulverizer apparatus. An air exchanger connected to the second tank collects nanosized particulates of coal. A pipeline feeds the coal within the second tank with a mixture of chemolithophic bacteria from a breeding tank. A holding tank receives the mixture of coal and chemolithophic bacteria. A centrifuge receives the mixture of coal and chemolithophic bacteria from the holding tank and separates the coal from the mixture. A fourth tank receive the separated and hydrated coal particles from the centrifuge.