A gas-liquid mixing component and a catalyst bed structure for a reactor

Abstract

The invention provides a gas-liquid mixing component and a catalyst bed structure used in a reactor, and relates to the technical field of reactors. The gas-liquid mixing assembly includes a shell on which a liquid inlet pipe and an impact mixing plate for receiving gas-liquid materials are arranged. The liquid outlet of the liquid inlet pipe is located in the inner cavity of the shell, and the impact mixing plate is located Below the liquid outlet of the tube; there are multiple injection tube groups distributed on the impact mixing plate, and each injection tube group includes two or more mixing injection tubes opposite to the material outlet, and the top feed of the mixing injection tubes The outlet is located above the impact mixing plate, and the bottom outlet of the mixing jet tube is located below the impact mixing plate. The catalyst bed structure includes the above-mentioned gas-liquid mixing component, and the gas-liquid mixing component can effectively improve the uniformity of gas-liquid mixing; for a reactor with the same internal volume, adopting the structure of the present invention means that the loading volume of the solid catalyst can be increased .

Description

technical field [0001] The invention relates to the technical field of reactors, in particular to a gas-liquid mixing component and a catalyst bed structure used in the reactor. Background technique [0002] In petroleum refining and petrochemical industry, hydrogenation reaction is very common, and it is widely used with the need of upgrading oil products, such as hydrocracking and hydrofining. The hydrogenation reaction is an exothermic reaction. During the reaction process, the temperature of the reactants needs to be controlled to prevent the catalyst bed temperature from rapidly rising and causing the activity of the catalyst to decrease (that is, the "flying temperature" phenomenon). In industrial design, the catalyst in the fixed-bed hydrogenation reactor is usually divided into multiple beds, and cold hydrogen is added between two adjacent catalyst beds, on the one hand to reduce the temperature of the hot reactants, on the other hand to supplement the consumption o...

AI Technical Summary

Problems solved by technology

Some domestic design and research units have proposed the flat design concept of the quench box, and also introduced a new type of flat quench box, but it has not fundamentally changed the traditional structure and mixing method

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