SU1443946A1 - Absorber - Google Patents

Abstract

The invention relates to processes and devices of chemical technology, can be used in chemical, microbiological and other areas of industry for carrying out various absorption chemical processes, as well as biological treatment of wastewater, refining process media of hydrolysis industries, reduces the cost of energy for dispersion of the gas phase by reducing the flow rate of the liquid phase and increasing the mass transfer intensity by eliminating stagnant zones in the bottom part of the absorber The absorber consists of a rectangular obaychayka, gas distribution chambers, made in the form of two coaxially located confusors. The chambers are installed outside the reaction cell of the shell from its opposite sides and are connected to it by means of two intermediate containers of confused form, the smaller sections of which are the output sections of the external confusors of the gas distribution chambers. The upper surfaces of the intermediate tanks pass into the side surfaces of the reaction cell, and the lower surfaces intersect with each other, forming the bottom of the absorber, with the opening angle of the intermediate containers of confused form being 50-60. 2 Il. S (l

Description

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The invention relates to apparatuses of chemical technology and can be used in chemical, microbiological, and other industrial fields for carrying out various absorption chemical processes, as well as biological treatment of wastewater, upgrading of hydrolysis process fluids.

The aim of the invention is to reduce the energy cost of dispersing the gas phase by reducing the flow rate of the liquid phase and increasing the mass transfer rate by eliminating stagnant zones in the bottom part of the absorber.

Figure 1 shows the absorber; on

Fig O2 - the same, top view.

The apparatus consists of a rectangular shell 1 of rectangular cross section divided by partitions 2 into the central reaction cell 3 and two lateral circulation cells 4. In the lower part of the absorber there are gas distribution chambers 5, They are placed outside the opposite sides of the cell 3, the gas distribution chambers 5 are connected to the reaction cell 3 iepea intermediate tanks 6 confused form. Pipeline 7 serves to supply gas to the internal confuser 8 of the gas distribution chamber 5. The circulation pipe 9 with a centrifugal pump 10 is used to supply liquid to the external confuser 11 of the chamber 5. Fittings 12 are used to feed the raw material. pipeline 9.

The lower surfaces of opposite intermediate tanks of confused section at the intersection form the bottom of the absorber. This form of the bottom ensures the elimination of the stagnant zone in the bottom part of the device, since the angle of inclination of the forming bottoms to the horizontal is equal to the angle of inclination, the boundary of the expanding jet to its horizontal axis.

The device works in the following way.

The feedstock is fed directly to the reaction Cell 3, the shell 1. The reacted gas

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is removed through the top of the apparatus. The liquid phase is taken by the centrifugal pump 10 from the bottom of the CIpcation cells 4 of the shell 1 and is injected into the space between the gas distribution distributor chambers 5 via the circulation pipe 9. The internal confuser 8 of the chamber 5 is through the pipeline 1 gas is supplied under pressure. Through the rectangular slots formed by confusions 8 and 11 and the liquid and gas phase gap in the form of flat jets through intermediate tank 6, they enter the reaction cell 3. In this case, hydrodynamic interaction takes place, liquid stresses between themselves and the gas stream between them. also with oppositely directed jets. Next, the gas-liquid mixture raises ™ s in the upper part of the cell 3 where the liquid is degassed, the liquid is then sent to the circulation. 4 cells and is taken from there by pump 10 to recirculate through pipeline 9o. Part of the finished product is taken out through fitting 13,

Compared with the prototype, this absorber design reduces the energy consumption for dispersing the gas phase by 1.15-1.3 times by reducing the flow rate of the liquid phase, which is necessary for the effect of gas crushing of the gas stream, and to intensify mass transfer by 1.05-1.1 times due to the elimination of stagnant zones in the bottom part of the apparatus

F o rmula of the invention

: Absorber, incl. Shell rectangular section, divided by partitions into central reaction; and circulation cells, gas distribution chambers made in the form of two coaxially installed convergers, a circulation pump, pipelines for gas supply and liquid circulation, fittings for supplying the raw material and outputting the finished product, characterized in that reduce energy consumption for dispersing the gas phase by reducing the flow rate of the liquid and increasing the mass transfer intensity by eliminating stagnant zones in the bottom part of the absorber, the gas distribution chambers are located beyond elami reaction mantle cell on opposite sides thereof, and the absorber is provided with two intermediate capacitances as convergers angle disclosure 50-60 connected, smaller-sections with the output of sectional mi vnesh14439464

they are confused with gas distribution chambers, and large - with the lateral surfaces of the reaction cells, while the lower surfaces of the intermediate tanks intersect with each other, forming the bottom of the central reaction cell

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Claims (1)

SUMMARY OF THE INVENTION An absorber comprising a rim of rectangular section, divided by partitions into a central reaction; circulation and circulation cells, gas distribution chambers made in the form of two 'coaxially installed confusers, a circulation pump, pipelines for supplying gas and liquid circulation, fittings for supplying raw materials and outputting the finished product, as a whole that, in order to reduce energy costs for dispersing the gas phase by reducing the flow rate of the liquid and increasing the mass transfer intensity by eliminating stagnant zones in the bottom part of the absorber, the gas distribution chambers are located behind the limits of the reaction cell of the shell on its opposite sides, and the absorber is equipped with two intermediate containers in the form of confusers with an opening angle of 50-60 °, connected! while the lower surfaces of the intermediate tanks intersect each other, forming the bottom of the Central reaction cell _about Fae. 1 Figure 1