A method and apparatus for extracting botanical oil from botanical mass includes milling the biomass and chilling the milled biomass. The biomass is then exposed to a chilled ethanol solvent. Water is added and the solution introduced into a first centrifuge. The clean ethanol slurry is then introduced into an evaporator leaving a two-phase mixture which is introduced into a second centrifuge which separates the water from the pure botanical oil.

The present invention discloses an oil leaching and extraction assembly capable of repeated separation, which may include an upper rack, a leaching barrel, a separation device, a filter cylinder, a milling device and a material claiming device and a liquid renewal duct and the liquid outlet pipe are respectively provided on the upper and lower part of the leaching barrel. The separation device may include a separation drum and the liquid outlet pipe goes through the separation drum and is connected to an oil tank through the check valve. And a separation hole is provided on the part of liquid outlet pipe locating in the separation drum. For the part where separation drum is under the liquid renewal duct, a electrical heating separation block is provided with. A recycling tank plate whose forms a recycle bin with its left side board is provided on the separation drum. A circulating pump is provided in the recycle in and the circulating pump is connected to the liquid renewal duct. With the design of the liquid outlet pipe going through the separation drum and the electrical heating separation block evaporates the solvents in the liquid outlet pipe from the separation hole and the solvents are collected at the same time. The solvents may flow in the leaching barrel again after the collection process to recycle the solvents. And the circulation flow of the leaching liquid can be heated and separated for several times to ensure the quality of the oil.

A continuous feeding and discharging system for solid material under high pressure is provided. The system includes a feeding assembly, a high pressure vessel, and a discharging assembly. The feeding assembly includes a raw material hopper that feeds solid raw material, a CO.sub.2 feeder that feeds dry ice, and a mixer that mixes the solid raw material with the dry ice to form an impermeable mixture. The high pressure vessel performs an extraction process under a supercritical condition to extract soluble components from the solid raw material. The discharging assembly includes a discharging extruder that receives the solid residue discharged from the high pressure vessel, a binder liquid feeder that feeds binder liquid to mix with the solid residue to form a uniform mixture and compacts the mixture to form impermeable pellets of residue, and a discharging valve that discharges the impermeable pellets of residue from the discharging extruder.

The present invention is directed to an energy-efficient and environmentally friendly process for the production of chemical target compounds from cellulosic material. In a further aspect, the present invention is directed to a system for conducting the process according to the inventive process.

This disclosure describes systems, methods, and apparatus for counter-current solids leaching. A multi-stage countercurrent leaching chamber can include a top and bottom end, a barren liquor input, two or more regions for countercurrent mixing, and a barren solids output. The input can be configured to receive barren liquor. The two or more regions for countercurrent mixing and separation can be configured to mix and separate liquid and solid phases. The barren solids output can be configured to collect and discharge barren solids from the bottom end of the multi-stage countercurrent leaching chamber. A fluidized bed chamber and clarifier chamber can also be included, where the fluidized bed receives a fluidizable slurry of pregnant solids and the clarifier chamber aids in separating liquids from solids passing from a top of the fluidized bed chamber to the top end of the multi-stage countercurrent leaching chamber.

The present invention is directed to an energy-efficient and environmentally friendly process for the production of chemical target compounds from cellulosic material. In a further aspect, the present invention is directed to a system for conducting the process according to the inventive process.

A system for extracting components from sample material includes a multi-port extraction vessel and an extraction basket that is configured to hold the sample material and to be rotated within the multi-port extraction vessel. The extraction vessel may include multiple ingress ports and multiple egress ports to allow a liquid solvent to flow through the extraction vessel during an extraction process. The extraction basket is permeable to allow liquid solvent to flow through the extraction basket and distribute throughout the sample material held within the extraction basket. A rotation mechanism, such as a motor, may rotate the extraction basket within the extraction vessel during the extraction process. The multi-port extraction vessel, in combination with the rotatable extraction basket, promotes even distribution of the liquid solvent throughout the sample material.

A method for storing hazardous materials within a pile by installing a drill casing a perforated casing section into a well installed in the pile, inserting a pipe or hose having an opening into the drill casing, aligning the opening of the pipe or hose with at least one perforated casing section, sealing the drill casing to isolate air or fluid flowing into or out of the drill casing so that the air or fluid only flows into or out of the drill casing through the at least one perforated casing section, pulling or pushing air or fluid through the pipe or hose at a pressure sufficient to open void spaces within the pile, and injecting hazardous materials through the pipe or hose at pressure sufficient to cause the hazardous materials to fill the void spaces.

A method for processing algae-based products using flue gas heat includes mixing flue gas with water, receiving a heated gas in a first enclosure of a heat exchanger, receiving an algal paste in a second enclosure of the heat exchanger, introducing an organic solvent to the algal paste, extracting an algal oil and a plurality of algal shells from the algal paste by dissipating heat from the first enclosure to the second enclosure; and extracting the algal oil from the organic solvent and the algal shells.

A screen for an extractor system can have a top surface that a solid material contacts during operation of the extractor, a bottom surface opposite the top surface, and a plurality of apertures extending from the top surface through the bottom surface. In one example, the bottom surface of the screen is coated with a non-stick coating while the top surface of the screen is devoid of the non-stick coating.