Axial reactor

Abstract

The invention discloses an axial reactor. The reactor comprises a radial cylindrical sealed pressure-bearing shell body (2), a gas inlet pipe (18), a gas outlet pipe (13), an axial microchannel reaction zone (16) and an axial catalytic reaction zone (9), wherein the axial microchannel reaction zone (16) is located above the axial catalytic reaction zone (9); the axial microchannel reaction zone (16) comprises one or more disk-shaped axial microchannel reaction units (14) which are connected in series up and down; each axial microchannel reaction unit (14) has a plurality of axial microreaction channels (7); and the axial catalytic reaction zone (9) can contain at least one catalyst bed layer, and reactant fluid can flow through the catalyst bed layers from top to bottom for a catalytic reaction. Compared with the prior art, the reactor disclosed by the invention is compact in structure, low in active metal consumption, low in bed layer pressure drop, short in gas product retention time and high in bed layer space utilization ratio and is free of gas bias and short-circuit phenomena.

Description

technical field [0001] The invention relates to an axial reactor. Background technique [0002] There are mainly two types of fixed bed reactors, one is axial fixed bed reactor and the other is radial fixed bed reactor. The axial fixed bed reactor is relatively easy to design and process, and simple to operate, but there are problems such as large size of reactor equipment, large pressure drop in the bed layer, prone to local temperature jump, slow heat transfer, low conversion rate, and obvious amplification effect. The radial fixed bed reactor has a large height-to-diameter ratio, a small bed pressure drop, and a short residence time of the reactants in the catalyst bed, but it is difficult to achieve uniform distribution of the reactants in the radial direction, and the production intensity of the unit catalyst bed is low. [0003] In order to overcome the problems of low heat transfer and mass transfer efficiency in traditional chemical industry, microchemical technolog...

AI Technical Summary

Problems solved by technology

The axial fixed bed reactor design, processing process is relatively easy, and the operation is simple, but there are problems such as large size of reactor equipment, large bed pressure drop, prone to partial temperature runaway, slow heat transfer, low conversion rate, and obvious amplification effect.

The radial fixed bed reactor has a large height-to-diameter ratio, a small bed pressure drop, and a short residence time of the reactants in the catalyst bed, but it is difficult to achieve uniform distribution of the reactants in the radial direction, and the production intensity of the unit catalyst bed is low

[0003] In order to overcome the problems of low heat transfer and mass transfer efficiency in traditional chemical industry, microchemical technology emerged in the 1980s and 1990s.

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