Supercritical carbon dioxide extraction tank and extraction system including same

Abstract

The invention relates to a supercritical carbon dioxide extraction tank. The supercritical carbon dioxide extraction tank comprises an extraction tank main body, a refining part and a power part, wherein the extraction tank main body sequentially comprises a top cover, a tank side wall and a base plate from top to bottom, a material inlet is formed in the center of the top cover, and a solvent outlet is formed beside the material inlet; a material outlet, a solvent inlet and a connecting hole are formed in the base plate in a penetration manner; the refining part comprises a feeding cylinder and a refining net, a plurality of discharging holes are formed in the side wall of the feeding cylinder in a penetration manner, and the feeding cylinder is externally sleeved with the refining net; and the power part comprises an electric motor, and the electric motor is fixedly connected with the lower end of the feeding cylinder. According to the supercritical carbon dioxide extraction tank, by virtue of a supergravity liquid drop refining manner, the contact area between a liquid material and a carbon dioxide solvent is increased, and the extraction efficiency is effectively improved. An extraction system including the supercritical carbon dioxide extraction tank can be used for solving the problem that the liquid material is difficultly continuously treated by virtue of a supercritical fluid extraction process.

Description

technical field [0001] The invention belongs to the field of extraction technology, and in particular relates to a supercritical carbon dioxide extraction tank and an extraction system comprising the extraction tank. Background technique [0002] Supercritical carbon dioxide fluid extraction process is a new extraction process. Compared with the most widely used solvent extraction method at present, this process uses inert gas, colorless, non-toxic, odorless, safe, environmentally friendly and pollution-free carbon dioxide as a solvent, and the entire extraction The process is carried out at a lower temperature, which has a good protection effect on heat-sensitive, easily oxidized or volatile substances. At the same time, using this process, the target product can be obtained directly from the separation tank without evaporating and concentrating the organic solvent, and the operation is simpler and more convenient, so it is widely respected. [0003] At present, convention...

AI Technical Summary

Problems solved by technology

The supercritical carbon dioxide extraction tank adopts the method of supergravity to refine the droplets, which increases the contact area between the liquid material and the carbon dioxide solvent, and effectively improves the extraction efficiency; the extraction system including the supercritical carbon dioxide extraction tank solves the problem of The supercritical fluid extraction process is difficult to continuously process liquid materials, and it also avoids the problems of secondary elution and product yield reduction caused by the introduction of fillers.

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