A Catalytic Reactor Suitable for Strong Exothermic Volume Reduction

Abstract

A catalytic reactor suitable for strong exothermic volume reduction, relating to a catalytic reactor, the reactor axis is in a U-shaped structure, the U-shaped axis is an inner gas cylinder (7), and the inner gas cylinder (7) is surrounded by , symmetrically arranged from the inside to the outside, there are catalyst bed I (6), catalyst bed II (5), catalyst bed III (3), gas distribution cylinder (2), outer gas cylinder (1); and outer gas cylinder (1 ) is connected with an air inlet (4); the catalyst bed III (3) is equipped with a heat exchange tube (8); the reaction raw material gas enters the catalyst bed along the periphery of the reactor, and is discharged from the center of the reactor to match the gas The change of the volume and the area of ​​the flow path; the adjustment of the reaction volume at different radial positions; the matching of the gradient loading of the catalyst, the gradient heat transfer tube bundle in the catalyst bed, and the balance of the bed reaction heat and the heat exchange tube bundle heat transfer. The reactor of the present invention is especially suitable for a place where strong exothermic volume reduction reaction realizes homogenization of bed gas flow rate, bed temperature and the like.

Description

technical field [0001] The invention relates to a catalytic reactor, in particular to a catalytic reactor suitable for volume reduction of strong heat release. Background technique [0002] Fixed-bed reactors are widely used in gas-solid phase catalytic reactions in the chemical industry. For reactions with strong exothermic and volume reduction such as Fischer-Tropsch synthesis, ammonia synthesis, methanation, etc., traditional fixed-bed reactors have limited transfer Thermal properties lead to a certain temperature difference between the axis and the radial direction of the catalyst bed, which in turn leads to the formation of local hot spots in the catalyst bed or the overheating of the catalyst bed, causing catalyst sintering and even deactivation. In addition, the traditional fixed-bed reaction design also has the disadvantage of large pressure drop when the reactant gas passes through the catalyst bed. [0003] In the industrial tube-and-tube reactor, the catalyst is ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a catalytic reactor suitable for strong exothermic volume reduction. The present invention solves the problem of large pressure drop and slow removal of heat of reaction when raw material gas passes through the catalyst bed during the catalytic reaction process of strong exothermic volume reduction. As well as the problem of large temperature difference in the catalyst bed, a radial reactor suitable for catalytic reactions with strong exothermic volume reduction is provided

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