Component migration processing method and component migration processing device

Abstract

To promote the transfer of a target component to an absorption liquid, while enabling the execution of a component transfer process by compact equipment. A gas transfer processing method includes : transferring gas to an inside or an outside of an absorption liquid within respective processing flow paths while circulating the absorption liquid through the respective processing flow paths; after the gas transferring step, separating a mixed fluid including the absorption liquid discharged from outlets of the respective processing flow paths and gas by respective separation headers into the absorption liquid and the gas; and circulating the absorption liquid separated in the separating step by returning the separated absorption liquid from the separation headers to inlets of the respective processing flow paths through respective recirculation lines, thus introducing the absorption liquid to the respective processing flow paths.

Description

technical field [0001] The present invention relates to a component movement processing method and a component movement processing device. Background technique [0002] Conventionally, as a component transfer processing method for moving a target component into and out of an absorbent liquid, for example, a gas absorption method or a gas release method, a gas transfer processing method of moving a gas into or out of a liquid is known. The gas absorption method is a method of causing a liquid to absorb a gas, and the gas release method is a method of causing a gas to be released from a liquid. And, in recent years, in order to realize the processing of such gas absorption or gas release with compact equipment, following technology is known: For example, make liquid flow in the minute channel that is formed in the microchannel device and in this channel Absorption of gas into the liquid or release of gas from the liquid is carried out (for example, refer to the following Pate...

AI Technical Summary

Problems solved by technology

However, it is actually difficult to make liquid and gas flow while allowing them to coexist at a large gas-liquid ratio in the aforementioned fine flow path, that is, in a space that is significantly restricted.

[0005] Specifically, in the gas absorption process, when using an absorbing liquid with a large absorbing capacity, in order to fully exert its absorbing capacity, it is necessary to form the absorbing liquid and the absorbed gas at a large gas-liquid ratio (for example, 1000 or more). Two-phase flow of gas (such as slug flow or annular flow), but it is difficult to form a good two-phase flow with such a large gas-liquid ratio in a fine flow path

Therefore, it is impossible to absorb a sufficient amount of gas corresponding to the absorption liquid having a large absorption capacity in the fine flow path.

[0006] In addition, in the gas release process, in order to sufficiently release the gas absorbed by the absorption liquid in the flow path, it is necessary that the absorption liquid and the gas released from the absorption liquid can coexist in the flow path at a large gas-liquid ratio. , but in practice such coexistence is difficult

As a result, the gas-liquid ratio is insufficient, and the pressure of the gas released in the fine flow path cannot be sufficiently reduced.

As a result, the gas absorbed by the absorbent cannot be sufficiently released in the fine channel.

[0007] As described above, the absorption liquid and the gas cannot flow while coexisting at a large gas-liquid ratio in the fine flow path, so the movement of the gas relative to the absorption liquid cannot be sufficiently performed.

[0008] In addition, the above-mentioned problems arise when the extraction process of extracting the target component with the extractant corresponding to the absorption liquid is performed in the fine channel as one form of the absorption process, or when the extraction process is performed in the micro channel as one form of the release process. The same occurs when the process of releasing the target component from the extractant from which the target component is extracted is performed in the flow path

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