CA2590238A1 - Method and apparatus for removing solute from a solid solute-bearing product - Google Patents
Method and apparatus for removing solute from a solid solute-bearing product Download PDFInfo
- Publication number
- CA2590238A1 CA2590238A1 CA002590238A CA2590238A CA2590238A1 CA 2590238 A1 CA2590238 A1 CA 2590238A1 CA 002590238 A CA002590238 A CA 002590238A CA 2590238 A CA2590238 A CA 2590238A CA 2590238 A1 CA2590238 A1 CA 2590238A1
- Authority
- CA
- Canada
- Prior art keywords
- solvent
- extraction chamber
- solute
- solid product
- extraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/102—Production of fats or fatty oils from raw materials by extracting in counter-current; utilisation of an equipment wherein the material is conveyed by a screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0215—Solid material in other stationary receptacles
- B01D11/0223—Moving bed of solid material
- B01D11/0226—Moving bed of solid material with the general transport direction of the solids parallel to the rotation axis of the conveyor, e.g. worm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/028—Flow sheets
- B01D11/0284—Multistage extraction
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Fats And Perfumes (AREA)
Abstract
The process and apparatus are for removing a solute from a solute-bearing solid product by means of a solvent which remains in liquid state throughout the entire extraction vessel conducted in extraction chamber (24). The solvent and solute are collected as a miscella in vessel 42 and then separated from each other in a separation vessel (48). Temperatures and pressures are maintained so as to maintain the solvent in liquid state in both extraction chamber (24) and separation vessel (48).
Claims (20)
1. A process for separating a solute from a solute-bearing solid product comprising the steps of:
- providing an extraction chamber with determined extraction pressure and temperature values;
- controlling said extraction pressure to maintain it above an ambient pressure value;
- controlling said extraction temperature to maintain it at a temperature that will not denature said solute nor said solid product;
- feeding said solute-bearing solid product in said extraction chamber;
- providing a solvent which is in mainly liquid state at said extraction pressure and temperature values, with said solute being soluble in said solvent at said extraction pressure and temperature values;
- injecting said solvent in liquid state on said solute-bearing product in said extraction chamber for leaching said solute from said solid product with said solvent;
- distinctly recuperating said solid product from which at least a portion of said solute has been leached, and a miscella comprising a mixture of said solvent and said solute leached from said solid product;
- conveying said miscella to a separation unit with determined separation temperature and pressure values, with said solvent remaining mainly in liquid state at said separation temperature and pressure values, and with said separation temperature value being controlled to maintain it at a temperature that will not denature said solute;
- separating said solvent from said solute in said separation unit through a liquid-liquid separation process; and - distinctly recuperating said solvent and said solute separated in said separation unit;
wherein said solvent remains mainly in a liquid-state throughout said process.
- providing an extraction chamber with determined extraction pressure and temperature values;
- controlling said extraction pressure to maintain it above an ambient pressure value;
- controlling said extraction temperature to maintain it at a temperature that will not denature said solute nor said solid product;
- feeding said solute-bearing solid product in said extraction chamber;
- providing a solvent which is in mainly liquid state at said extraction pressure and temperature values, with said solute being soluble in said solvent at said extraction pressure and temperature values;
- injecting said solvent in liquid state on said solute-bearing product in said extraction chamber for leaching said solute from said solid product with said solvent;
- distinctly recuperating said solid product from which at least a portion of said solute has been leached, and a miscella comprising a mixture of said solvent and said solute leached from said solid product;
- conveying said miscella to a separation unit with determined separation temperature and pressure values, with said solvent remaining mainly in liquid state at said separation temperature and pressure values, and with said separation temperature value being controlled to maintain it at a temperature that will not denature said solute;
- separating said solvent from said solute in said separation unit through a liquid-liquid separation process; and - distinctly recuperating said solvent and said solute separated in said separation unit;
wherein said solvent remains mainly in a liquid-state throughout said process.
2. A process as defined in claim 1, wherein said solvent is in gazeous state at ambient temperature and pressure values but mainly in liquid state at said extraction temperature and pressure values.
3. A process as defined in claim 2, wherein said extraction and separation temperatures are equal to ambient temperature, with said solvent being maintained mainly in liquid-state throughout said process by means of said extraction and separation pressures being maintained above ambient pressure.
4. A process as defined in claim 1, wherein said solvent recuperated from said separation unit is re-utilized within said extraction chamber for extracting additional solute from additional said solute-beating material, whereby said solvent is used within a closed-loop circuit and remains mainly in liquid state throughout said closed-loop circuit.
5. A process as defined in claim 1, wherein said liquid-liquid separation process is one of molecular weight, specific gravity and viscosity differential separation processes.
6. A process as defined in claim 1, wherein said process is a batch process, with the step of feeding said solute-bearing solid product in said extraction chamber being accomplished by loading a batch of solute-bearing solid product in said extraction chamber.
7. A process as defined in claim 1, wherein said process is a continuous process, with the step of feeding said solute-bearing solid product in said extraction chamber being accomplished by continuously circulating the solute-bearing product through said extraction chamber and continuously recuperating solid product from which at least a portion of oil has been leached at an outlet of said extraction chamber.
8. A process as defined in claim 7, wherein said extraction chamber comprises a number of extraction chamber portions through which said solute-bearing product is sequentially circulated for extracting solute from the solute-bearing solid product, with each extraction chamber portion defining corresponding extraction chamber parameters and with at least some extraction chamber parameters differing from one extraction chamber to the other.
9. A process as defined in claim 7, wherein the step of injecting said solvent in said extraction chamber is accomplished by means of at least one spray nozzle extending in said extraction chamber capable of forming a vortex-shaped solvent spray pattern.
10. A process as defined in claim 9, wherein the step of continuously circulating said solute-bearing product through said extraction chamber is accomplished by means of an auger equipped with agitation paddles, said process further comprising the step of agitating particles of said solute-bearing product to promote the formation of free-floating solid product particles that will be at least partly carried into said vortex-shaped solvent spray pattern.
11. A process as defined in claim 1, wherein the step of controlling said extraction pressure to maintain it above an ambient pressure value is accomplished by means of a gas injector injecting in said extraction chamber one of a vapor of said solvent and a gas which is unreactive with said solvent, oil and solid product.
12. An apparatus for separating oil from an oil-bearing solid product comprising:
- an extraction chamber;
- a solvent injector for injecting solvent in said extraction chamber for leaching oil from the oil-bearing solid product to form a miscella comprising a mixture of solvent and oil;
- a miscella outlet in said extraction chamber for collecting miscella; and - a liquid-liquid separation unit linked to said miscella outlet, for separating the miscella into its respective oil and solvent components;
wherein solvent injected in said extraction chamber remains mainly in liquid state to leach oil from the oil-bearing product to form therewith the miscella, and remains mainly in liquid state in said liquid-liquid separation unit.
- an extraction chamber;
- a solvent injector for injecting solvent in said extraction chamber for leaching oil from the oil-bearing solid product to form a miscella comprising a mixture of solvent and oil;
- a miscella outlet in said extraction chamber for collecting miscella; and - a liquid-liquid separation unit linked to said miscella outlet, for separating the miscella into its respective oil and solvent components;
wherein solvent injected in said extraction chamber remains mainly in liquid state to leach oil from the oil-bearing product to form therewith the miscella, and remains mainly in liquid state in said liquid-liquid separation unit.
13. An apparatus as defined in claim 12, further comprising:
- an inlet valve located upstream of said extraction chamber and allowing said oil-bearing solid product to enter said extraction chamber without allowing the passage of fluid between said extraction chamber and the atmosphere;
- an outlet valve located downstream of said extraction chamber and allowing the solid product from which oil has been leached to exit said extraction chamber without allowing the passage of fluid between said extraction chamber and the atmosphere; and - an impeller for circulating said solid product from said inlet valve through said extraction chamber towards said outlet valve;
wherein said apparatus allows the continuous feeding of solid product to said inlet valve, the continuous leaching of oil from the solid product, the continuous output of solid product from said outlet valve, and the continuous collection of miscella at said miscella outlet.
- an inlet valve located upstream of said extraction chamber and allowing said oil-bearing solid product to enter said extraction chamber without allowing the passage of fluid between said extraction chamber and the atmosphere;
- an outlet valve located downstream of said extraction chamber and allowing the solid product from which oil has been leached to exit said extraction chamber without allowing the passage of fluid between said extraction chamber and the atmosphere; and - an impeller for circulating said solid product from said inlet valve through said extraction chamber towards said outlet valve;
wherein said apparatus allows the continuous feeding of solid product to said inlet valve, the continuous leaching of oil from the solid product, the continuous output of solid product from said outlet valve, and the continuous collection of miscella at said miscella outlet.
14. An apparatus as defined in claim 12, wherein said liquid-liquid separation unit is a separation unit that makes use of one of molecular weight, specific gravity and viscosity differential separation processes.
15. An apparatus as defined in claim 13, further comprising a main solvent tank connected to said solvent injector for providing solvent thereto, with said separation unit being connected to said main solvent tank for conveying the liquid-state solvent separated from the oil in said separation unit back to said main solvent tank, wherein said solvent is circulated within a closed-loop circuit in said apparatus and remains mainly in liquid state within said apparatus.
16. An apparatus as defined in claim 13, wherein said extraction chamber comprises a number of consecutively contiguous extraction chamber portions, with said impeller sequentially circulating said solid product through said extraction chamber portions, with said solvent injector injecting solvent in each said extraction chamber portion and with said miscella outlet collecting miscella in each said extraction chamber portion.
17. An apparatus as defined in claim 13, wherein said solvent injector includes at least one spray nozzle extending in said extraction chamber and capable of forming a vortex-shaped solvent spray pattern.
18. An apparatus as defined in claim 17, wherein said impeller comprises an auger equipped with agitation paddles that will promote the formation of free-floating solid product particles to be at least partly carried into said vortex-shaped solvent spray pattern.
19. An apparatus as defined in claim 13, further comprising a security solvent extraction unit downstream of said outlet valve, for removing residual solvent vapors by the application of heat to the solid product.
20. A valve defining an inlet and an outlet, for allowing a solid product to pass from said inlet to said outlet while preventing fluids from being exchanged between said inlet and outlet, comprising:
- an inner channel extending between said inlet and said outlet;
- a fluid exhaust port in said inner channel intermediate said inlet and outlet, said fluid exhaust port being in communication with a vacuum pump and being equipped with a filter allowing passage of fluids through said fluid exhaust port but preventing passage of the solid product through said fluid exhaust port;
- a rotary valve member located in said inner channel and being rotatable therein, said rotary valve member comprising a main body engaging said inner channel in a fluid-tight manner and having an elongated transversal channel, said rotary valve member being capable of rotating between a first position in which said transversal channel is coextensive and communicates with said valve inner channel and in which said main body obstructs said fluid exhaust port, and a second position in which said transversal channel is in facing register and communicates with said fluid exhaust port and said main body obstructs said valve inner channel; and - a piston longitudinally movable within said elongated transversal channel between two limit positions.
- an inner channel extending between said inlet and said outlet;
- a fluid exhaust port in said inner channel intermediate said inlet and outlet, said fluid exhaust port being in communication with a vacuum pump and being equipped with a filter allowing passage of fluids through said fluid exhaust port but preventing passage of the solid product through said fluid exhaust port;
- a rotary valve member located in said inner channel and being rotatable therein, said rotary valve member comprising a main body engaging said inner channel in a fluid-tight manner and having an elongated transversal channel, said rotary valve member being capable of rotating between a first position in which said transversal channel is coextensive and communicates with said valve inner channel and in which said main body obstructs said fluid exhaust port, and a second position in which said transversal channel is in facing register and communicates with said fluid exhaust port and said main body obstructs said valve inner channel; and - a piston longitudinally movable within said elongated transversal channel between two limit positions.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2703105A CA2703105C (en) | 2004-12-14 | 2004-12-14 | Method and apparatus for removing solute from a solid solute-bearing product |
| CA2724148A CA2724148C (en) | 2004-12-14 | 2004-12-14 | Method and apparatus for removing solute from a solid solute-bearing product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2004/041646 WO2006065236A1 (en) | 2004-12-14 | 2004-12-14 | Method and apparatus for removing solute from a solid solute-bearing product |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2703105A Division CA2703105C (en) | 2004-12-14 | 2004-12-14 | Method and apparatus for removing solute from a solid solute-bearing product |
| CA2724148A Division CA2724148C (en) | 2004-12-14 | 2004-12-14 | Method and apparatus for removing solute from a solid solute-bearing product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2590238A1 true CA2590238A1 (en) | 2006-06-22 |
| CA2590238C CA2590238C (en) | 2011-02-22 |
Family
ID=36588177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2590238A Expired - Fee Related CA2590238C (en) | 2004-12-14 | 2004-12-14 | Method and apparatus for removing solute from a solid solute-bearing product |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1835974A4 (en) |
| JP (1) | JP2008522821A (en) |
| CN (1) | CN101119783B (en) |
| AU (1) | AU2004325728B2 (en) |
| CA (1) | CA2590238C (en) |
| MX (1) | MX2007007216A (en) |
| WO (1) | WO2006065236A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8398857B2 (en) * | 2009-10-22 | 2013-03-19 | Epic Oil Extractors, Llc | Extraction of solute from solute-bearing material |
| AR085965A1 (en) * | 2011-04-11 | 2013-11-06 | Desmet Ballestra North America Inc | ROTATING BASKET EXTRACTOR |
| MX2017003611A (en) | 2014-09-18 | 2017-11-17 | Bridgestone Corp | Extractor and related methods. |
| EP4017950A4 (en) * | 2019-08-20 | 2023-09-13 | Craig, Scott, E. | Apparatus and method for extracting essential oils |
| US11864683B2 (en) | 2020-06-24 | 2024-01-09 | Kalenian Coffee Consulting LLC | Methods for producing liquid extracts |
| US12042080B2 (en) | 2020-06-24 | 2024-07-23 | Kalenian Coffee Consulting LLC | Systems for producing liquid extracts |
| DE102021128991A1 (en) | 2021-11-08 | 2023-05-11 | Harburg-Freudenberger Maschinenbau Gmbh | Method and device for extraction |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503854A (en) * | 1967-08-22 | 1970-03-31 | Blaw Knox Co | Dual stage steam stripping of vegetable oils at dual pressures |
| GB1438847A (en) * | 1973-09-20 | 1976-06-09 | Dravo Corp | Process for treating an oil-enriched solvent |
| DE3343478A1 (en) * | 1983-12-01 | 1985-06-27 | Heinz 2050 Hamburg Schumacher | DEVICE AND METHOD FOR CONTINUOUS SOLID-LIQUID EXTRACTION |
| JPS63174997A (en) * | 1987-01-12 | 1988-07-19 | Hitachi Ltd | Extraction and separation of valuable substance from fat and oil raw material |
| US4848918A (en) * | 1988-08-04 | 1989-07-18 | Cf Systems Corporation | Mixing apparatus |
| US5525746A (en) * | 1992-12-31 | 1996-06-11 | Univesity Research & Marketing Inc. | Method for selective extraction of compounds from carbonaceous materials |
| US5707673A (en) * | 1996-10-04 | 1998-01-13 | Prewell Industries, L.L.C. | Process for extracting lipids and organics from animal and plant matter or organics-containing waste streams |
| US6111119A (en) * | 1999-01-14 | 2000-08-29 | Cocotech, Inc. | Process for removing oil from food products |
| US6551642B2 (en) * | 2001-03-08 | 2003-04-22 | Cocotech, Inc. | Process for removing oil from foodstuffs using a membrane filter |
-
2004
- 2004-12-14 EP EP04813899A patent/EP1835974A4/en not_active Withdrawn
- 2004-12-14 MX MX2007007216A patent/MX2007007216A/en unknown
- 2004-12-14 AU AU2004325728A patent/AU2004325728B2/en not_active Ceased
- 2004-12-14 JP JP2007546616A patent/JP2008522821A/en active Pending
- 2004-12-14 CA CA2590238A patent/CA2590238C/en not_active Expired - Fee Related
- 2004-12-14 WO PCT/US2004/041646 patent/WO2006065236A1/en active Application Filing
- 2004-12-14 CN CN2004800448826A patent/CN101119783B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1835974A4 (en) | 2009-01-28 |
| MX2007007216A (en) | 2007-11-14 |
| CN101119783A (en) | 2008-02-06 |
| WO2006065236A1 (en) | 2006-06-22 |
| CA2590238C (en) | 2011-02-22 |
| AU2004325728B2 (en) | 2010-01-21 |
| JP2008522821A (en) | 2008-07-03 |
| AU2004325728A1 (en) | 2006-06-22 |
| CN101119783B (en) | 2012-04-18 |
| EP1835974A1 (en) | 2007-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20211214 |