A method for removing mist droplets in gas by combining expanded bed of glass spheres with coalescer

An expanded bed and coalescer technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve problems such as poor purification efficiency of fine mist droplets, and achieve fast and efficient adsorption, high environmental friendliness, and corrosion resistance. strong effect

Active Publication Date: 2021-07-23
ZHENJIANG JIANGNAN CHEM +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Faced with the complexity of the types of mist contained in the actual industrial gas, and the current situation of poor purification efficiency of fine mist droplets in the actual production and operation process, it is urgent to find a purification system suitable for removing various types of mist droplets in actual working conditions. method

Method used

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  • A method for removing mist droplets in gas by combining expanded bed of glass spheres with coalescer

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Effect test

Embodiment 1

[0027] Such as figure 1 Shown, the present invention utilizes glass sphere expanded bed in conjunction with coalescer to carry out the implementation steps of the purifying method that removes mist droplet in gas as follows:

[0028] (1) Pass the industrial airflow (synthetic waste gas from organosilicon monomer) containing droplet size of 1-10 μm and concentration of 200-500ppm into the expanded bed of glass spheres filled with porous glass spheres, and carry out Preliminary adsorption to obtain a preliminary purified gas flow; among them, the velocity of the industrial gas flow in the glass bead expanded bed is at the critical fluidization velocity, so that the glass bead expanded bed is in a slightly expanded state; the glass bead expanded bed is distributed in three layers from bottom to top Porous glass spheres of different particle sizes, the particle diameters of the porous glass spheres are 5mm, 3mm and 1mm respectively, and the corresponding filling heights account fo...

Embodiment 2

[0031] Such as figure 1 Shown, the present invention utilizes glass sphere expanded bed in conjunction with coalescer to carry out the implementation steps of the purifying method that removes mist droplet in gas as follows:

[0032](1) Pass the industrial airflow (synthetic waste gas from organosilicon monomer) containing droplet size of 1-10 μm and concentration of 200-500ppm into the expanded bed of glass spheres filled with porous glass spheres, and carry out Preliminary adsorption to obtain a preliminary purified gas flow; among them, the velocity of the industrial gas flow in the glass bead expanded bed is at the critical fluidization velocity, so that the glass bead expanded bed is in a slightly expanded state; the glass bead expanded bed is distributed in three layers from bottom to top Porous glass spheres of different particle sizes, the particle diameters of the porous glass spheres are 5mm, 3mm and 1mm respectively, and the corresponding filling heights account for...

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Abstract

The invention discloses a method for removing mist droplets in a gas by combining an expanded bed of glass spheres with a coalescer, which comprises the following steps: (1) flowing industrial air into an expanded bed of glass spheres filled with porous glass spheres, and performing a preliminary (2) Introduce the preliminary purified airflow obtained in step (1) into the coalescer for fine mist to coalesce and settle, and the purified air is discharged through the coalescer. When the residual concentration is higher than 30-40ppm, it is necessary to clean the expanded bed of glass spheres and the coalescer before reuse; the industrial gas defogging method of the present invention combines the expanded bed of glass spheres with the coalescer, During the initial adsorption process of the expanded bed, the large-sized droplets in the industrial gas are separated, and the coalescer coalesces the small-sized droplets, which can effectively reduce the residual concentration of the droplets to 30ppm and increase the yield of the target product.

Description

technical field [0001] The invention relates to an expanded bed of glass spheres and a method for adsorbing and purifying mist impurities in industrial gas by using the expanded bed of glass spheres combined with a coalescer. Background technique [0002] In the social production process of medicine, chemical industry, petrochemical, power generation, etc., such as pickling, electroplating, electrolysis, acid making, etc., sulfuric acid, hydrochloric acid, nitric acid, organic solvents and other substances will be used in the gas phase. Different liquid mist droplets are harmful to production and the environment, and it is necessary to try to remove them. Fog droplets are mainly formed due to the evaporation of the liquid surface and condensation with water. In addition, when a chemical reaction occurs, bubbles are generated, which float to the liquid surface and explode, and the droplets also come out; the mist droplets will contain many toxic and harmful substances. The s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/00B01D46/30B01D51/02
CPCB01D46/0036B01D46/30B01D51/02B01D2258/02
Inventor 孟庆曦解清杰周君立王勇孙洁苏洁邵启运王亮
Owner ZHENJIANG JIANGNAN CHEM
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