TH20007U - Supercritical liquid carbon dioxide extraction system with solid carbon dioxide assistance. - Google Patents

Abstract

------01/07/2021------(OCR) Essential oil extraction machine using supercritical liquid carbon dioxide assisted by solid carbon dioxide. Consists of a double-walled cylindrical solid carbon dioxide tank, the inner layer can withstand high pressure, with end caps, used for filling with solid carbon dioxide, the outer layer is thin-walled for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the pressure tank, a pipe is connected through a flow control valve to supply to the extraction tank, a double-walled cylindrical tank, the inner layer can withstand high pressure, with end caps, used for filling with solid carbon dioxide, the outer layer is thin-walled for hot and cold water to flow through. At the top of the solid carbon dioxide tank, there is a pipe connected to a pressure boosting pump and a high-pressure carbon dioxide tank (9), which has a pressure reducing valve (8) and a pressure relief valve, which can be connected in parallel to increase capacity. and the ability to extract substances and can also be connected to the existing supercritical liquid carbon dioxide essential oil extraction system. ------------ Supercritical liquid carbon dioxide essential oil extraction system with solid carbon dioxide assist. Consists of a double-walled cylindrical solid carbon dioxide tank. The inner layer can withstand high pressure, with end caps, used to contain solid carbon dioxide. The outer layer is thin-walled for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the pressure tank, a pipe is connected through a flow control valve to supply to the extraction tank. The extraction tank is a double-walled cylindrical tank. The inner layer can withstand high pressure, with end caps, used to contain solid carbon dioxide. The outer layer is thin-walled for hot and cold water to flow through. At the top of the solid carbon dioxide tank, there is a pipe connected to a pressure boosting pump and a high-pressure carbon dioxide tank (9), which has a pressure reducing valve (8) and a pressure relief valve, which can be connected in parallel to increase the capacity and the ability to extract substances. It can also be connected to the existing supercritical liquid carbon dioxide essential oil extraction system. It can also be used in addition to what was already available.

Claims (4)

------01/07/2021------(OCR) 1. Essential oil extraction machine using supercritical liquid carbon dioxide assisted by solid carbon dioxide consists of: Solid carbon dioxide container (1) which is a double-walled cylinder, the inner layer can withstand a high pressure of 100-120 bar, with lids at both ends, used for filling solid carbon dioxide, the outer layer is a thin-walled type for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the pressure container, a pipe is connected through a flow control valve to supply to the extraction tank (2). At the top of the solid carbon dioxide container (1), there is a pipe connected to a pressure boosting pump (7) and a high-pressure carbon dioxide container (9), which has a pressure reducing valve (8) and a pressure relief valve (10). Extraction tank (2) which is a double-walled cylinder, the inner layer can withstand a high pressure of 100-120 bar, with lids at both ends, used for filling raw materials, the outer layer is a thin-walled type for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the pressure container, a pipe is connected to receive liquid carbon dioxide from the solid carbon dioxide container (1). At the lid of the extraction tank, a pressure relief valve is connected. and connect the pipe to the condenser or first-stage product separation tank (3). The condenser or first-stage product separation tank (3) is a double-walled cylinder. The inner wall can withstand high pressure of 40-60 bar. It has caps at both ends and is used for condensing or separating products from carbon dioxide gas. The outer wall is thin-walled for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the condenser or first-stage product separation tank (3), a pipe is connected for storing products. At the cap of the condenser or first-stage product separation tank (3), it is connected to a pressure relief valve and connected to the second-stage product separation tank (4). The condenser or second-stage product separation tank (4) is a double-walled cylinder. The inner wall can withstand high pressure of 20-40 bar. It has caps at both ends and is used for condensing or separating products from carbon dioxide gas. The outer wall is thin-walled for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the condenser or first-stage product separation tank (3), a pipe is connected for storing products. At the cap of the condenser or first-stage product separation tank (3), it is connected to a pressure relief valve and connected to the second-stage product separation tank (4). or the second product separation tank (4) is connected to a pressure relief valve and a pipe is connected to release the gas into the system (Reservoir). The hot water system (5) can use an electric or gas heater to create a water temperature of up to 80-100 degrees Celsius, and the cold water system (6) uses an electric chiller to reduce the water temperature to 5-15 degrees Celsius. It is a cylindrical stainless steel tank with a water pump to send water to circulate to the system. The outer tank is wrapped with thermal insulation. The booster pump (7) is a pump that compresses carbon dioxide gas to become liquid, to increase the pressure and volume of carbon dioxide in the solid carbon dioxide storage tank (1). 2. Essential oil extraction using supercritical liquid carbon dioxide assisted by solid carbon dioxide, according to claim 1, where the solid carbon dioxide storage tank (1) can contain carbon dioxide in all three states: carbon dioxide gas, liquid carbon dioxide, and solid carbon dioxide, and convert it to liquid carbon dioxide and/or near-critical liquid carbon dioxide for speed and flexibility in extraction. 3. Essential oil extraction using supercritical liquid carbon dioxide assisted by solid carbon dioxide. Under any of the claims 1 or 2, where the solid carbon dioxide container (1), the extraction tank (2), and the condensing tank or the first product separation tank (3) are modular, usable as single-operation systems, and can be connected in parallel or series to increase capacity and extraction efficiency. 4. Supercritical liquid carbon dioxide assisted by solid carbon dioxide under any of the claims 1 through 3, where temperature control is achieved by an external hot-cold water circulation system, and pressure control is achieved by adjustment of the pressure reducing valve (8) and the pressure relief valve (10). ------------ 1. The supercritical liquid carbon dioxide extraction machine with solid carbon dioxide assist consists of a solid carbon dioxide tank (1) which is a double-walled cylinder. The inner layer can withstand a high pressure of 100-120 bar and has caps at both ends. It is used to hold solid carbon dioxide. The outer layer is a thin-walled type for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the tank, the pressure is connected to a pipe through a flow control valve to supply the extraction tank (2). At the top of the solid carbon dioxide tank (1), there is a pipe connected to a pressure boosting pump (7) and a high-pressure carbon dioxide tank (9) which has a pressure reducing valve (8) and a pressure relief valve (10). The extraction tank (2) is a double-walled cylinder. The inner layer can withstand a high pressure of 100-120 bar and has caps at both ends. It is used to hold raw materials. The outer layer is a thin-walled type for hot and cold water to flow through. To control the temperature inside the tank, at the bottom of the pressure tank, a pipe is connected to receive liquid carbon dioxide from the solid carbon dioxide storage tank (1). At the lid of the extraction tank, it is connected to a pressure relief valve and a pipe is connected to the condenser tank or first-stage product separation tank (3). The condenser tank or first-stage product separation tank (3) is a double-walled cylinder. The inner layer can withstand high pressure of 40-60 bar. It has caps at both ends and is used for condensing or separating products from carbon dioxide gas. The outer layer is a thin-walled type for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the condenser tank or first-stage product separation tank (3), a pipe is connected to store the product. At the lid of the condenser tank or first-stage product separation tank (3), it is connected to a pressure relief valve and a pipe is connected to the second-stage product separation tank (4). The condenser tank or second-stage product separation tank (4) is a double-walled cylinder. The inner layer can withstand high pressure of 20-40 bar. It has caps at both ends and is used for condensing. Or separate the product from the carbon dioxide gas. The outer layer is a thin wall for hot and cold water to flow through to control the temperature inside the tank. At the bottom of the condensing tank or the first product separation tank (3), a pipe is connected for storing the product at the lid of the condensing tank or the second product separation tank (4), connected to a pressure relief valve and a pipe is connected to vent the gas to the system (Reservoir). The hot water system (5) can use an electric or gas heater and can create a water temperature as high as 80-100 degrees Celsius, and the cold water system (6) uses an electric chiller and can reduce the water temperature as low as 5-15 degrees Celsius. It is a cylindrical stainless steel tank with a water pump for sending water to circulate and maintain the system. The outer tank is wrapped with thermal insulation. The pressure booster pump (7) is a pump to compress the carbon dioxide gas into liquid to increase the pressure and amount of carbon dioxide in the solid carbon dioxide storage tank (1). 2. A supercritical liquid carbon dioxide extraction system assisted by solid carbon dioxide, according to claim 1, in which the solid carbon dioxide (1) container can contain carbon dioxide in all three states: carbon dioxide gas, liquid carbon dioxide, and solid carbon dioxide, and can be converted to liquid carbon dioxide and/or near-critical liquid carbon dioxide for speed and flexibility of extraction. 3. A supercritical liquid carbon dioxide (SCD) extraction system assisted by solid carbon dioxide, according to claim 1 or 2, in which the solid carbon dioxide tank (1), extraction tank (2), and condensation tank or first-stage product separation tank (3) are modular, single-operational units that can be connected in parallel or series to increase capacity and extraction efficiency. 4. A supercritical liquid carbon dioxide extraction device assisted by solid carbon dioxide, according to one of the claims 1 to 3, where temperature control is achieved by an external hot-cold water circulation system and pressure control is achieved by adjustment of a pressure reducing valve (8) and a pressure relief valve (10).