A kind of precisely amplified microreactor, preparation method and application thereof

Abstract

The invention relates to a precise-amplification microreactor and a preparation method application thereof and belongs to the technical field of microchemical engineering. The precise-amplification microreactor comprises a feed port, at least two passages, a discharge outlet and a connection line, the connection line comprises a feed line connected between the feed port and the passages, a connection pipe between the at least two passages and a discharge line connected between the passages and the discharge port, and diameter varies decreases gradually from a feed inlet of the feed line to a discharge inlet line; the precise-amplification is applicable to gas-liquid reaction, liquid-liquid reaction, liquid-solid reaction, gas-liquid-liquid reaction and liquid-liquid-solid reaction. The difficulty in precise amplification for the microreactor that is as promising chemical apparatus is overcome, integration of tens of thousands micro-passages is achieved, an access main passage is connected with the internal tens of thousands micro-passages, and high uniformity is ensured for the temperatures, pressures and flow patterns of the passages.

Description

technical field [0001] The invention relates to a precisely enlarged micro-reactor, a preparation method and an application thereof, and belongs to the technical field of micro-chemical industry. Background technique [0002] The microreactor has unique advantages such as high heat and mass transfer efficiency, greenness and safety, and has become a revolutionary new achievement of chemical equipment and has a very broad application prospect. Microreactors can achieve instant uniform mixing of materials and efficient heat transfer, so many reactions that cannot be realized in conventional reactors can be realized in microreactors. The word "micro" in the microreactor indicates that the channel of the process fluid is at the micron level, and does not refer to the small size of the microreactor or the small output of the product. In theory, microreactors can contain tens of thousands of microchannels, so high yields can also be achieved. [0003] But the existing problem is...

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Problems solved by technology

However, this scheme will change some basic characteristics of the microreactor, such as changing from stable laminar flow or slug flow to traditional turbulent flow, and micron-scale stable liquid contact to unstable contact with continuous coalescence of droplets , The controllable and known mass transfer interface becomes an uncontrollable mass transfer interface, which reduces the reaction efficiency or selectivity of the micro-reaction process, making the advantages of microfluidic reactions unable to be fully utilized

In addition, the number of channels can be increased by using the metal plate lamination method with multiple channels, but the connection between the main channel and thousands of internal channels is still difficult to realize, and the sealing and packaging of the channels are very difficult

[0004] The rapid development of 3D printing technology in recent years has also begun to be used to produce microreactors, but it has not been able to solve the problem of accurately enlarging microreactors

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