Microreactor adopting metal and transparent plastic composite structure and application of microreactor

Abstract

The invention belongs to the technical field of micro-chemical engineering and particularly discloses a microreactor adopting a metal and transparent plastic composite structure and an application of the microreactor. Transparent plastic is used above an absorption-reaction microchannel to serve as an upper sealing plate in the microreactor, the upper sealing plate is a window of the microreactor, grooves are engraved in the periphery of the absorption-reaction microchannel, and sealing pads are embedded in the grooves for sealing and prevent liquids from leaking between plates; the microreactor is also provided with a heat exchange channel below the absorption-reaction microchannel, and the rest structures except the window are made of heat conductive metal materials. The metal and transparent plastic composite structure is adopted, fluid flowing or reaction conditions in the uniform temperature field (temperature difference smaller than 0.5 DEG C) in the microreactor can be observed in real time, the fluid behavior in the microreactor can be studied, and flowing, reaction and heat transfer performance in the microchannel can be further studied.

Description

technical field [0001] The invention belongs to the technical field of micro-chemical industry, and in particular relates to a micro-reactor with a composite structure of metal and transparent plastic and its application. Background technique [0002] As an emerging chemical process enhancement technology, micro-chemical technology has attracted widespread attention. Micro-chemical equipment such as micro-mixers and micro-reactors are the core equipment. The characteristic size of its channels is mostly in the range of tens to hundreds of microns, and it is matched with other supporting equipment. The equipment consists of a continuous production process. [0003] Microchannel reactors have high mass and heat transfer characteristics due to their channel feature sizes ranging from micrometers to millimeters, and the heat transfer coefficient of liquids is as high as 10 3 ~10 5 W m -2 ·K -1 . Compared with conventional heat exchangers, microchannel heat exchangers have t...

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Problems solved by technology

Lu et al. (DOI: 10.1021 / ef400976j) used a double stirred tank absorption device to study the absorption of CO by MEA / ionic liquid mixture. 2 Due to the large volume of double-stirred tank equipment and low mass and heat transfer coefficients, large local temperature differences will affect the analysis results; Ye et al. (DOI: 10.1016 / j.cej.2013.03.053) use stainless steel microreactors Study of CO uptake by MEA 2 The nature of the process, by submerging its device in a water bath to achieve a uniform temperature field, due to the use of submerged water baths and stainless steel microreactors, it is impossible to know the real situation of the fluid inside the reactor

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