Gas-liquid phase reactor for preparing sulfite

Abstract

The invention provides a gas-liquid phase reactor for preparing a sulfite, and belongs to a chemical device. The gas-liquid phase reactor comprises a reactor tank body and a stirring pump, a certain number of bubbling tubes are inserted in the reactor tank body, the bubbling tubes are inserted from the upper part of the reactor tank body into the lower part of the reactor tank body, the reactor isnot internally provided with mechanical rotating equipment, the problems of required sealing and high energy consumption of an existing gas-liquid phase reactor stirring device are effectively avoided, the gas-liquid reactor realizes efficient mass transfer and heat transfer of a gas-liquid phase through gas bubbling and the stirring pump, and the system runs more smoothly.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a gas-liquid phase reactor for preparing sulfite. Background technique [0002] In the chemical industry, environmental protection industry and other fields, gas-liquid reactions are often carried out in reactors / kettles. For example, in the production of wet-process sodium metabisulfite and potassium metabisulfite, in order to increase the reaction rate, most of the reactors are mainly stirred inside, but the sealing cost of mechanical stirring is high, and the energy consumption of the system is large; The gas velocity is high, the contact area between the gas material and the liquid material is small, the mixing is uneven, and the reaction yield is low. [0003] Patent CN201220732323.6 discloses a reactor, through the addition of a gas distributor, the gas material coming out of the central tube can be divided into several streams or bubbles, which increases the contact area ...

AI Technical Summary

Problems solved by technology

Disadvantages are high equipment investment, high operating energy consumption, and high product unit comprehensive cost; at the same time, the uniformity of bubbling is small and the reaction efficiency is low

[0005] Patent CN201720300607.0 discloses a gas-liquid phase reactor equipped with two gas material inlets. When two gas materials participate in the reaction, the setting of the two gas material inlets can make the two gas materials enter separately. material, which is convenient for flow control, but it still does not avoid the inherent defects of the internal stirring method

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