Microwave film reaction device

Abstract

The invention discloses a microwave film reaction device which comprises four parts including a first part which is a mechanical transmission device (1), a second part which is a microwave emission device (2), a third part which is a film forming device (3), and a fourth part which is a cavity defined by a reactor wall (4); in the reaction device, the film forming device is arranged in the cavitydefined by the reactor wall, the film forming device (2) and / or the reactor wall (4) are / is moved through the mechanical transmission device, so that material liquid flows along the reactor wall in afilm shape, and microwaves irradiate the flowing liquid to promote chemical reaction acceleration.

Description

technical field [0001] The invention belongs to the field of novel chemical reactors. It specifically relates to a new type of reaction device, through the movement of the film forming device parts and the cavity of the reactor wall, the reaction material liquid is made into a film by physical force and flows along the reactor wall, and the chemical reaction is promoted by microwaves. . Background technique [0002] Microwave acting on chemical reactions has the characteristics of fast, low energy consumption, high efficiency and environmental protection. The speed of some reactions promoted by microwaves can be more than 10,000 times that of common chemical reactions, and the reactions that generally take dozens of hours can be promoted by microwaves in only a few minutes. However, the microwave-promoted chemical reaction also has its insurmountable shortcomings. Generally speaking, the thickness of the liquid in the traditional reactor is too large, and the microwave is ...

AI Technical Summary

Problems solved by technology

However, the microwave-promoted chemical reaction also has its shortcomings that are difficult to overcome. Generally speaking, the thickness of the liquid in the traditional reactor is too large. The microwave is absorbed by the surface of the liquid and it is difficult to penetrate into the interior of the liquid.

More importantly, the internal reaction speed of the reaction system is too fast, and the heat inside the reaction system is difficult to remove from the system.

Internal overheating will cause the system to suddenly gasify, which poses a very large safety risk

Although, some continuous reactors solve such problems through microchannel reactors or tubular reactors, but such solutions have the following two disadvantages: One disadvantage is that when the liquid viscosity becomes larger Sometimes, the reactor will be blocked, and the pressure of the transfer pump required will exceed the range of use; another disadvantage is that the small molecule products produced by the microchannel or tubular reactor are difficult to remove from the system

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