KR20130030411A

KR20130030411A - Batch and continuous process in one system

Info

Publication number: KR20130030411A
Application number: KR1020110093855A
Authority: KR
Inventors: 박미연; 최승태
Original assignee: 박미연
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2013-03-27

Abstract

The present invention relates to an extraction and purification apparatus using a supercritical fluid, and relates to the design of two systems using a batch extractor and a continuous column in one system.
When the batch supercritical extraction and purification device is used, the supercritical extraction solvent stays in the batch column only for a certain time and contains the target substance or impurity and flows out at the same time as the pressure is released. In the column extraction and purification, the extraction object containing the desired compound flows down from the top of the extraction tank standing vertically to the bottom, and the extraction solvent flows from the bottom of the extraction tank to the top to face the extraction. It is characterized in that the target compound and the supercritical fluid as the extraction solvent are continuously contacted to extract the desired compound from the extraction object.

Description

Batch and continuous integrated supercritical extraction purification unit {Batch and continuous process in one system}

The present invention relates to the construction of a system in which an extraction stagnation device using a supercritical fluid can use solid and liquid raw materials in one system.

The supercritical fluid extraction and purification apparatus is characterized by obtaining a relatively high purity material by separating a target compound from solid and liquid raw materials or by removing a compound other than the target.

In addition, there is a case where the target compound must be extracted from two phases, a solid phase and a liquid phase, from one raw material. In this case, although it is an expensive device, there is a difficulty in having both a solid phase extraction device and a liquid extraction device. Therefore, there is an urgent need for a supercritical extraction and purification apparatus configured to share a common system line and to use a solid phase reactor and a liquid column in one system.

Therefore, the present invention, in view of the above-mentioned difficulties, by constructing a batch and continuous extraction and purification apparatus as one system to build an expensive extraction and purification apparatus at low cost to obtain the target compound from the solid and liquid raw materials The purpose is to make it possible.

Not applicable

Such integrated supercritical fluid extraction and purification apparatus of the present invention is composed of one system by sharing a common supercritical fluid supply line in order to solve the disadvantage of having a batch type and a continuous device, respectively, despite being an expensive device. This is possible, and at the same time characterized by having the effect of using both methods in a narrow space.

1 is a diagram illustrating a batch and continuous supercritical extraction device in one system.

Extraction and purification apparatus using the CO2 supercritical fluid of the present invention, the liquid storage tank 101 for storing the supercritical fluid of the liquid, in the case of the condensed fluid in this case install the pipe to the bottom in consideration of the characteristics that the liquid collects on the bottom And liquid fluids should be used. High pressure pump 202 for supplying the liquid fluid drawn from the liquid storage tank to the extractor at a high pressure, solid phase extractor 501 for penetrating the high-pressure fluid supplied from the liquid to the extraction target material to extract the desired material And a continuous column 401 capable of receiving a liquid raw material and continuously extracting a desired substance in a supercritical state, and a raw material heater 301 and a fluid heater 302 for controlling the temperature of the supplied fluid and the raw material. In order to supply the raw material, the raw material is supplied to the heater for the raw material by passing through the pump 201 for raw material transfer from the raw material storage tank 102. The system using a batch extraction and a continuous column characterized in the present invention is only a difference between the extractor, there is no difference in the system for supplying a high pressure fluid. Therefore, while using the CO 2 storage tank 101, the raw material heater 301, the pump 202 for the high pressure transfer of the fluid, the heater for heating the fluid 302 jointly and the extraction of the solid material using the solid phase extractor 501 and It is characterized in that the extraction from the liquid raw material using the liquid extraction column 401 can be used in one system. Therefore, when the solid phase extractor 501 extracts the target compound from the liquid phase using the liquid extraction column, it serves as a separator 501 to release CO 2 and extract the target object with CO 2 to the bottom of the separator. Let it collect so that it can be recovered. On the other hand, when removing unnecessary compounds from the solid phase raw material using a supercritical fluid, the separator used in the extraction using the continuous column can be used as the solid phase extractor 501. However, when putting the raw material in the solid state extractor 501 should be put in a solid container in the form of powder in a cup-shaped container (Fig. 4), when there is a risk of being discharged with the CO2 should be put in a net in the powder.

Specific extraction using the above extraction and purification apparatus, for example, 1) liquid extraction, while supplying the (thermal) water extract of the raw material from the top of the column and at the same time supplying a high-pressure liquid fluid from the bottom, The fluid is allowed to flow out while containing the target compound or the substance to be removed, and the target compound may be separated from the high pressure fluid in the separator 501 to recover the target object accumulated on the bottom.

2) The solid phase extraction is filled with the high-pressure liquid through the empty continuous column to the solid-state extractor 501 and then reacted for a predetermined time, the desired process is completed by removing the high-pressure fluid by opening the vent valve. Representative examples of such a process include a process of removing caffeine from coffee. However, it is also possible to recover the target material from another separator of the vented fluid after a certain time of reaction.

Description of the Related Art
101: CO2 storage tank
102: raw material storage tank
201: raw material transfer pump
202: high pressure pump for CO2
301: heater for raw materials
302: heater for CO2
401: continuous extraction column
501: Separator and reactor

Claims

In constructing a supercritical fluid extraction and purification device, it is characterized by enabling batch and continuous extraction in one system.
A device for recovering or removing a target compound from a solid raw material using a supercritical fluid, and a device for recovering or removing a target compound from a liquid raw material.