Gas-liquid distributor

Abstract

The invention discloses a gas-liquid distributor, belonging to the field of petrochemical equipment. The gas-liquid distributor comprises gas-phase cofferdams, liquid guide pipes, mixed components, a non-return ball, an end cover, etc, wherein the mixed components are formed by contraction sections, throat pipes, extension sections and straight pipe sections from bottom to top; the walls of the throat pipes are provided with a plurality of gas inlets; gas-liquid runners are arranged on the straight pipe sections; the non-return ball is arranged in the extension sections and the straight pipe sections; and the end cover is sealed at the upper ends of the straight pipe sections. The gas-liquid distributor has simple structure, small volume, low pressure drop and high mass transfer efficiency, is especially suitable for realizing gas-liquid distribution with gas-solid-liquid phases in fluidized state in a fluidized bed reactor and can be widely applied to the fields of petrochemical industry and environmental protection.

Description

technical field [0001] The invention relates to a gas-liquid distributor, which is used for gas-liquid two-phase mixing and the working condition that the gas-liquid two-phase is dispersed in a bed with the liquid phase as the continuous phase, and belongs to the field of petrochemical equipment. The gas-liquid distributor of the present invention is suitable for gas and liquid distribution in the reactor bed, and is especially suitable for realizing the gas-liquid distribution in the boiling state of the gas-solid-liquid three-phase in the ebullating bed reactor. Background technique [0002] At present, gas-solid-liquid three-phase reactors mostly use bubble reactors and stirred tank reactors. The above-mentioned reactors have low efficiency and high energy consumption, and their application scale and application fields are limited by the reaction system. [0003] The fluidized bed process technology is widely used in petrochemical and environmental protection fields due t...

AI Technical Summary

Problems solved by technology

The distributor has the disadvantages of complex structure, liquid phase backflow when the gas volume fluctuates, only gas phase is distributed, large bubbles are generated, and mass transfer efficiency is low.

[0006] Chinese patent CN2425703Y introduces an internal device of an ebullated bed reactor. The internal member is composed of a vertical beam and a double-layer inverted V-shaped piece. Air bubbles are formed on the double-layer inverted V-shaped piece. The distributor has a complex structure, Disadvantages such as only distributing the gas phase, large bubbles, uneven bubbles, and low mass transfer efficiency

In some reactors, most of the commonly used gas distributors use Johnson nets to generate bubbles, which have the disadvantages of only distributing the gas phase, large bubbles, and low mass transfer efficiency.

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