WO2004058376A1 - Extractor using co2 gas - Google Patents

Extractor using co2 gas Download PDF

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Publication number
WO2004058376A1
WO2004058376A1 PCT/KR2003/002776 KR0302776W WO2004058376A1 WO 2004058376 A1 WO2004058376 A1 WO 2004058376A1 KR 0302776 W KR0302776 W KR 0302776W WO 2004058376 A1 WO2004058376 A1 WO 2004058376A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
liquid
storing tank
condenser
extractor
Prior art date
Application number
PCT/KR2003/002776
Other languages
French (fr)
Inventor
Nam Soo Park
Original Assignee
Korea Supercritical Extraction Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020020086936A external-priority patent/KR100404605B1/en
Application filed by Korea Supercritical Extraction Co., Ltd. filed Critical Korea Supercritical Extraction Co., Ltd.
Priority to AU2003286965A priority Critical patent/AU2003286965A1/en
Publication of WO2004058376A1 publication Critical patent/WO2004058376A1/en

Links

Classifications

    • 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
    • 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
    • B01D11/0292—Treatment of the solvent
    • B01D11/0296—Condensation of solvent vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0068—General arrangements, e.g. flowsheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D2011/007—Extraction using a solvent in the gas phase

Definitions

  • the present invention relates to an extractor using C0 2 gas, and in particular to an extractor using C0 2 gas capable of achieving a high purity and better extracting effect by a natural flow of CO 2 gas induced using a pressure difference in the interior of a circuit without using a certain pump for inducing a flow of C0 2 gas.
  • an extractor using C0 2 gas comprising a CO 2 gas storing tank for storing a CO 2 gas at a certain pressure; a condenser connected with the C0 2 gas storing tank for liquefying a C0 2 gas supplied in a gas state from the CO 2 gas storing tank; a liquid storing tank connected with the condenser for collecting the condensed C0 2 liquid and storing the same; an extracting unit connected with the liquid storing tank and extracting an extraction object as the liquid C0 2 is vaporized; and a gas and liquid separator connected in parallel with an outlet and an inlet of the extracting unit for thereby separating a liquid and C0 2 gas from the extract.
  • An outlet of the gas and liquid separator is connected with an inlet of the condenser; the diameter of a pipe installed in the interior of the condenser is larger than the diameter of a pipe connected with the liquid storing tank; a control valve is installed in a pipe connecting the liquid storing tank and the extracting unit; a control valve is installed in a pipe connecting an inlet of the extracting unit and the gas and liquid separator for connecting and disconnecting the flow of liquid; a check valve is installed in a pipe connecting an outlet of the gas and liquid separator and an inlet of the condenser for preventing a reverse flow of gas.
  • Figure 1 is a view illustrating a construction of an extractor according to the present invention.
  • Figure 1 is a view illustrating the construction of an extractor using CO gas according to the present invention.
  • the extractor using C0 2 gas according to the present invention includes a-C0 2 gas storing tank 1 for storing a C0 2 gas at a certain pressure, a condenser 3 connected with the C0 2 gas storing tank 1 for liquefying a C0 2 gas supplied in a gas state from the C0 2 gas storing tank 1 , a liquid storing tank 5 connected with ⁇ the condenser 3 for collecting the condensed CO 2 liquid and storing the same, an extracting unit 7 connected with the liquid storing tank 5 and extracting an extraction object as the liquid C0 2 is vaporized, and a gas and liquid separator 13 connected in parallel with an outlet 9 and an inlet 11 of the extracting unit 7 for thereby separating a liquid and C0 2 gas from the extract.
  • an outlet 15 of the gas and liquid separator 13 is connected with an inlet 17 of the condenser 3.
  • the diameter of a pipe 19 installed in the interior of the condenser 3 is larger than the diameter of a pipe 21 connected with the liquid storing tank 5.
  • a control valve 25 is installed in a pipe 23 connecting the liquid storing tank 5 and the extracting unit 7.
  • a control valve 29 is installed in a pipe 27 connecting an inlet 11 of the extracting unit 7 and the gas and liquid separator 13 for connecting and disconnecting the flow of liquid.
  • a check valve 33 is installed in a pipe 33 connecting an outlet 15 of the gas and liquid separator 13 and an inlet 17 of the condenser 3 for preventing a reverse flow of gas.
  • the C0 2 gas is vaporized and changed to a gas state.
  • the gas state passes through the condenser 3 and is liquefied.
  • the liquid state CO 2 passes through the pipe 22 having a diameter smaller than the diameter of the pipe 21 and is injected into the liquid storing tank 5.
  • the check valve 33 installed in the pipe 31 is disconnected, so that a reverse flow of the gas supplied from the gas storing tank 1 is prevented.
  • the control valve 25 installed in the pipe 22 and the control valve 29 installed in the pipe 27 are all disconnected.
  • control valves 25 and 29 are connected, and the liquid C0 2 stored in the liquid storing tank 5 is supplied to the extracting unit 7 and the gas and liquid separator 13, respectively.
  • the C0 2 liquid supplied through the pipe 23 is supplied to the extracting unit 7, and a part of the same is directly supplied to the gas and liquid separator 13 through the pipe 27.
  • the liquid CO 2 is directly supplied to the gas and liquid separator 13 at the initial stage for enhancing a smooth and normal operation of the gas and liquid separator 13.
  • a component to be extracted is stored in the extracting unit 7.
  • the liquid C0 2 is vaporized, the components are extracted from the extracting unit 7.
  • the vaporization operation in the extracting unit 7 is naturally performed at a certain temperature for thereby decreasing a consumption of energy. Therefore, in the present invention, it is possible to easily extract the components as compared to the conventional art in which the components are not easily extracted because the components are easily destroyed by even weak heat. Therefore, in the present invention, it is possible to fully extract all kinds of nutrition components.
  • the purifier 35 includes a water tank 37, a gravel tank 39 and a filter 41.
  • the C0 2 gas passed through the purifier 35 is purified to a cleaner gas as compared to the gas before the extracting process for thereby achieving a safer use of the same.
  • the flow of the extractor using CO 2 gas the flow of the
  • CO 2 gas is implemented based on a difference of a pressure distribution.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The present invention relates to an extractor using CO2 gas, and in particular to an extractor using CO2 gas capable of achieving a high purity and better extracting effect by a natural flow of CO2 gas induced using a pressure difference in the interior of a circuit without using a certain pump for inducing a flow of CO2 gas. The extractor using CO2 gas includes a CO2 gas storing tank for storing a CO2 gas at a certain pressure, a condenser connected with the CO2 gas storing tank for liquefying a CO2 gas supplied in a gas state from the CO2 gas storing tank, a liquid storing tank connected with the condenser for collecting the condensed CO2 liquid and storing the same, an extracting unit connected with the liquid storing tank and extracting an extraction object as the liquid CO2 is vaporized, and a gas and liquid separator connected in parallel with an outlet and an inlet of the extracting unit for thereby separating a liquid and CO2 gas from the extract.

Description

EXTRACTOR USING CO2 GAS
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an extractor using C02 gas, and in particular to an extractor using C02 gas capable of achieving a high purity and better extracting effect by a natural flow of CO2 gas induced using a pressure difference in the interior of a circuit without using a certain pump for inducing a flow of C02 gas.
2. Description of the Background Art
Generally, there are various methods for extracting an inherent component from useful plants, so that the obtained essences are used for a health of human.
There are some methods for fully extracting components, while exceeding a critical point of a corresponding extract. In almost conventional apparatuses and methods, a forced extracting method is adapted. Therefore, the degree of purity is not high.
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an extractor using C02. gas that overcomes the problems encountered in the conventional art.
It is another object of the present invention to provide an extractor using C02 gas capable of enhancing a degree of purity in an extract and achieving a fast extracting operation for obtaining a desired extract.
To achieve the above object, there is provided an extractor using C02 gas, comprising a CO2 gas storing tank for storing a CO2 gas at a certain pressure; a condenser connected with the C02 gas storing tank for liquefying a C02 gas supplied in a gas state from the CO2 gas storing tank; a liquid storing tank connected with the condenser for collecting the condensed C02 liquid and storing the same; an extracting unit connected with the liquid storing tank and extracting an extraction object as the liquid C02 is vaporized; and a gas and liquid separator connected in parallel with an outlet and an inlet of the extracting unit for thereby separating a liquid and C02 gas from the extract. An outlet of the gas and liquid separator is connected with an inlet of the condenser; the diameter of a pipe installed in the interior of the condenser is larger than the diameter of a pipe connected with the liquid storing tank; a control valve is installed in a pipe connecting the liquid storing tank and the extracting unit; a control valve is installed in a pipe connecting an inlet of the extracting unit and the gas and liquid separator for connecting and disconnecting the flow of liquid; a check valve is installed in a pipe connecting an outlet of the gas and liquid separator and an inlet of the condenser for preventing a reverse flow of gas.
BRIEF DESCRIPTION OF THE DRAWINGS
The preferred embodiments o the present invention will be described with reference to the accompanying drawings.
Figure 1 is a view illustrating a construction of an extractor according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The preferred embodiment of the present invention will be described with reference to the accompanying drawings.
Figure 1 is a view illustrating the construction of an extractor using CO gas according to the present invention. As shown therein, the extractor using C02 gas according to the present invention includes a-C02 gas storing tank 1 for storing a C02 gas at a certain pressure, a condenser 3 connected with the C02 gas storing tank 1 for liquefying a C02 gas supplied in a gas state from the C02 gas storing tank 1 , a liquid storing tank 5 connected with ■ the condenser 3 for collecting the condensed CO2 liquid and storing the same, an extracting unit 7 connected with the liquid storing tank 5 and extracting an extraction object as the liquid C02 is vaporized, and a gas and liquid separator 13 connected in parallel with an outlet 9 and an inlet 11 of the extracting unit 7 for thereby separating a liquid and C02 gas from the extract. In addition, an outlet 15 of the gas and liquid separator 13 is connected with an inlet 17 of the condenser 3. The diameter of a pipe 19 installed in the interior of the condenser 3 is larger than the diameter of a pipe 21 connected with the liquid storing tank 5. A control valve 25 is installed in a pipe 23 connecting the liquid storing tank 5 and the extracting unit 7. A control valve 29 is installed in a pipe 27 connecting an inlet 11 of the extracting unit 7 and the gas and liquid separator 13 for connecting and disconnecting the flow of liquid. A check valve 33 is installed in a pipe 33 connecting an outlet 15 of the gas and liquid separator 13 and an inlet 17 of the condenser 3 for preventing a reverse flow of gas.
In the thusly constituted apparatus, at the time when a liquid state C02 gas stored in the gas storing tank 1 is injected into the pipe 21 , the C02 gas is vaporized and changed to a gas state. The gas state passes through the condenser 3 and is liquefied. The liquid state CO2 passes through the pipe 22 having a diameter smaller than the diameter of the pipe 21 and is injected into the liquid storing tank 5. In the process for liquefying the gas of the gas storing tank 1 , the check valve 33 installed in the pipe 31 is disconnected, so that a reverse flow of the gas supplied from the gas storing tank 1 is prevented. The control valve 25 installed in the pipe 22 and the control valve 29 installed in the pipe 27 are all disconnected.
In the above state, when the gas of the gas storing tank 1 is supplied, the gas condensed by the condenser 3 in a liquid state is stored in the liquid storing tank 5.
When the CO2 liquid is stored in the liquid storing tank 5, exceeding a certain level, the control valve 35 installed in the pipe 21 of the gas storing tank 1 is disconnected, so that the gas is no longer supplied from the gas storing tank 1 .
In addition, the control valves 25 and 29 are connected, and the liquid C02 stored in the liquid storing tank 5 is supplied to the extracting unit 7 and the gas and liquid separator 13, respectively.
The C02 liquid supplied through the pipe 23 is supplied to the extracting unit 7, and a part of the same is directly supplied to the gas and liquid separator 13 through the pipe 27.
The liquid CO2 is directly supplied to the gas and liquid separator 13 at the initial stage for enhancing a smooth and normal operation of the gas and liquid separator 13. A component to be extracted is stored in the extracting unit 7. As the liquid C02 is vaporized, the components are extracted from the extracting unit 7. At this time, the vaporization operation in the extracting unit 7 is naturally performed at a certain temperature for thereby decreasing a consumption of energy. Therefore, in the present invention, it is possible to easily extract the components as compared to the conventional art in which the components are not easily extracted because the components are easily destroyed by even weak heat. Therefore, in the present invention, it is possible to fully extract all kinds of nutrition components.
In addition, the CO2 gas separated when it passes through the gas and liquid separator 13 is guided to pass through a purifier 35, so that the C02 gas is re-supplied to the condenser 3 in a purified state. The purifier 35 includes a water tank 37, a gravel tank 39 and a filter 41.
The C02 gas passed through the purifier 35 is purified to a cleaner gas as compared to the gas before the extracting process for thereby achieving a safer use of the same. As described above, in the extractor using CO2 gas, the flow of the
CO2 gas is implemented based on a difference of a pressure distribution.
Therefore, the construction of the extractor using CO2 gas is simplified. An extract having a high degree of purity is obtained. The extracting time is decreased. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

What is claimed is:
1. An extractor using CO2 gas, comprising: a CO2 gas storing tank for storing a CO2 gas at a certain pressure; a condenser connected with the CO2 gas storing tank for liquefying a C02 gas supplied in a gas state from the CO2 gas storing tank; a liquid storing tank connected with the condenser for collecting the condensed C02 liquid and storing the same; an extracting unit connected with the liquid storing tank and extracting an extraction object as the liquid CO2 is vaporized; and a gas and liquid separator connected in parallel with an outlet and an inlet of the extracting unit for thereby separating a liquid and C02 gas from the extract.
2. The extractor of claim 1 , wherein an outlet of the gas and liquid separator is connected with an inlet of the condenser; the diameter of a pipe installed in the interior of the condenser is larger than the diameter of a pipe connected with the liquid storing tank; a control valve is installed in a pipe connecting the liquid storing tank and the extracting unit; a control valve is installed in a pipe connecting an inlet of the extracting unit and the gas and liquid separator for connecting and disconnecting the flow of liquid; a check valve is installed in a pipe connecting an outlet of the gas and liquid separator and an inlet of the condenser for preventing a reverse flow of gas.
PCT/KR2003/002776 2002-12-30 2003-12-18 Extractor using co2 gas WO2004058376A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003286965A AU2003286965A1 (en) 2002-12-30 2003-12-18 Extractor using co2 gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020020086936A KR100404605B1 (en) 2002-10-30 2002-12-30 Extraction device using carbon dioxide
KR10-2002-0086936 2002-12-30

Publications (1)

Publication Number Publication Date
WO2004058376A1 true WO2004058376A1 (en) 2004-07-15

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ID=32677812

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Application Number Title Priority Date Filing Date
PCT/KR2003/002776 WO2004058376A1 (en) 2002-12-30 2003-12-18 Extractor using co2 gas

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AU (1) AU2003286965A1 (en)
WO (1) WO2004058376A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103070919A (en) * 2012-12-31 2013-05-01 西安鸿生生物技术有限公司 Alcohol precipitation device with combination of high pressure atomization and countercurrent and method
CN105727589A (en) * 2016-03-10 2016-07-06 大连工业大学 Supercritical fluid extraction, rectification and chromatography preparation device and control method thereof
EP3072568A1 (en) * 2015-03-27 2016-09-28 Dionex Corporation Pump-less method and apparatus for solvent extraction from a sample

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62226997A (en) * 1986-03-27 1987-10-05 Hitachi Ltd Extraction and separation of steroid from fat or oil raw material with supercritical gas and apparatus therefor
KR930016128A (en) * 1992-01-07 1993-08-26 함태호 Extraction of sesame oil or perilla oil by subcritical or supercritical fluid from sesame or perilla seed
JPH06113761A (en) * 1992-10-05 1994-04-26 Hitachi Plant Eng & Constr Co Ltd Production of nonwashing rice
EP0930925A1 (en) * 1996-10-14 1999-07-28 Commissariat A L'energie Atomique Extracting method and plant using a supercritical fluid
KR20020027749A (en) * 2000-10-05 2002-04-15 김현효 Recycling System and Method of Supercritical Carbon Dioxide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62226997A (en) * 1986-03-27 1987-10-05 Hitachi Ltd Extraction and separation of steroid from fat or oil raw material with supercritical gas and apparatus therefor
KR930016128A (en) * 1992-01-07 1993-08-26 함태호 Extraction of sesame oil or perilla oil by subcritical or supercritical fluid from sesame or perilla seed
JPH06113761A (en) * 1992-10-05 1994-04-26 Hitachi Plant Eng & Constr Co Ltd Production of nonwashing rice
EP0930925A1 (en) * 1996-10-14 1999-07-28 Commissariat A L'energie Atomique Extracting method and plant using a supercritical fluid
KR20020027749A (en) * 2000-10-05 2002-04-15 김현효 Recycling System and Method of Supercritical Carbon Dioxide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103070919A (en) * 2012-12-31 2013-05-01 西安鸿生生物技术有限公司 Alcohol precipitation device with combination of high pressure atomization and countercurrent and method
EP3072568A1 (en) * 2015-03-27 2016-09-28 Dionex Corporation Pump-less method and apparatus for solvent extraction from a sample
US9739692B2 (en) 2015-03-27 2017-08-22 Dionex Corporation Pump-less method and apparatus for solvent extraction from a sample
CN105727589A (en) * 2016-03-10 2016-07-06 大连工业大学 Supercritical fluid extraction, rectification and chromatography preparation device and control method thereof
CN105727589B (en) * 2016-03-10 2018-04-10 大连工业大学 A kind of supercritical fluid extraction, rectifying, chromatogram preparation facilities and its control method

Also Published As

Publication number Publication date
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