Magnetically stabilized bed for bidirectional utilization of internal and external magnetic fields

Abstract

The invention discloses a magnetically stabilized bed for bidirectional utilization of internal and external magnetic fields. The magnetically stabilized bed consists of a catalytic reaction inner tower and a catalytic reaction outer tower nested together. A liquid phase solution and a solid phase magnetic catalyst both enter from the bottom of the catalytic reaction inner tower, and flow togetherin a flow direction always opposite to a magnetic field direction. The momentum of the solid phase magnetic catalyst is completely provided by the liquid phase solution, and the magnetic catalyst particles are gradually decelerated under the action of a magnetic field and finally are collected after force balance. Due to fluctuation of liquid phase flow, the initial momentum transferred from a liquid phase to a solid phase is not uniform in distribution, so that three groups of magnetic induction coils are arranged respectively to collect solid phase magnetic catalysts with different momentums. A mixture passes through the catalytic reaction inner tower and the catalytic reaction outer tower in sequence, and the two phases are fully contacted for reaction. The device has a simple and compact structure and can carry out high-efficiency solid-liquid catalytic reaction.

Description

technical field [0001] The invention relates to the field of magnetically stabilized beds, in particular to the application field of magnetic catalysts under solid-liquid catalysis, and in particular to a magnetically stabilized bed with two-way utilization of internal and external magnetic fields. Background technique [0002] The concept of magnetically stabilized bed was first proposed by Filippov in the 1960s. By the end of the 1980s, the magnetically stabilized bed achieved its first industrial application in the field of ammonia synthesis. After decades of rapid development, magnetically stabilized beds have been widely used in many fields. The 2005 National Technology Invention Award was awarded to the project "Innovation and Integration of Amorphous Alloy Catalyst and Magnetic Stabilized Bed Reaction Process". [0003] At present, the magnetically stabilized bed process usually adopts gas-solid catalysis, solid-liquid catalysis and solid-liquid-gas three-phase cata...

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Problems solved by technology

[0004] Although the magnetically stabilized bed technology has many advantages, the current magnetically stabilized bed process still has some problems that limit its development, such as low utilization rate of magnetic field energy, difficult recovery of magnetic catalysts, etc.

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