Supercritical fluid extraction device and method and application

Abstract

The invention belongs to the technical field of solvent extraction, and discloses a supercritical fluid extraction device and method and application. A CO2 steel cylinder is connected with a purifier through a pipeline, the purifier is connected with a condenser through a pipeline, the condenser is connected with a third heater through a pipeline, the third heater is connected with an extraction cylinder through a pipeline, the extraction cylinder is connected with the second heater through a pipeline, the second heater is connected with the separator through a pipeline, the separator is connected with the first heater through a pipeline, the first heater is connected with the rectifying column through a pipeline, the rectifying column is connected with the flowmeter through a pipeline, and the flowmeter is connected with the CO2 steel cylinder through a pipeline. According to the invention, oxidation, dissipation and reaction of heat-sensitive components can be effectively prevented, and the biological activity of biomass objects can be completely retained; extraction and separation are combined, the extraction efficiency is high, the energy consumption is low, the cost is saved, and the trend of environmental protection and energy conservation is met; and the extraction operation is easy, and both the pressure and the temperature can become parameters for adjusting the extraction process.

Description

Technical field [0001] The invention belongs to the field of solvent extraction, and more particularly to a supercritical fluid extraction device and method and application. Background technique [0002] Currently, the prior art commonly used in the industry is this: Supercritical fluid (SCF) refers to temperature and pressure in a critical point (at specific temperatures, pressure, there will be liquid and gas interface disappeared) The liquid called critical point) or more; the current research of supercritical fluid extraction technology, Germany, Japan and the United States are already in the leading position, although supercritical CO 2 Extraction technology has been in terms of the research and development of my country's food industry, but with the development of high-tech and people's research, super-critical CO 2 Extraction technology must promote functional food research to higher development; traditional extracts such as diethyl ether, carbon tetrachloride, benzene, ga...

AI Technical Summary

Problems solved by technology

[0004] (1) The traditional extraction technology has a low extraction rate for general products and the purity of the extract is unqualified

[0005] (2) There are many substances that cannot be extracted by traditional methods, and some substances that are more expensive, have low extraction rates and are difficult to extract

[0006] (3) Traditional extracts such as ether, carbon tetrachloride, benzene, gasoline and other solvents are toxic

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