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Ammonia-acid method SO2 tail gas adsorption process using dynamic wave washer

A dynamic wave washing, SO2 technology, applied in chemical instruments and methods, separation methods, dispersed particle separation and other directions, can solve the problems of complex equipment structure, crystal blockage of tray sieve holes, large investment, etc., to achieve low investment and simple operation. , Guarantee the effect of up-to-standard emission

Active Publication Date: 2005-01-05
富民薪冶工贸有限公司
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Problems solved by technology

[0015] Current ammonia-acid method SO 2 Most of the absorption equipment used for tail gas absorption is a foam tower, which has high efficiency, but the equipment structure is complicated, the investment is large, and crystallization is easy to form in the production process to block the sieve holes of the tray, so there are certain limitations in its use

Method used

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  • Ammonia-acid method SO2 tail gas adsorption process using dynamic wave washer
  • Ammonia-acid method SO2 tail gas adsorption process using dynamic wave washer

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Embodiment Construction

[0021] Such as figure 1 : For sulfuric acid tail gas SO 2 For unqualified acid production systems, the last SO in the sulfuric acid process 3 SO contained in the absorption tower 1 2 The tail gas is connected to the reverse nozzle 3 of the dynamic wave scrubber 2 . The flue gas flows from top to bottom and absorbs SO through the mother liquor 2 Finally, it is discharged by the outlet pipe of the dynamic wave scrubber, and is discharged into the atmosphere through the exhaust gas chimney 3.

[0022] The working process of the dynamic wave scrubber is illustrated by Figure 2: 2 The flue gas enters the reverse nozzle pipe 4 of the power wave scrubber from top to bottom through the inlet of the power wave scrubber, and the circulating liquid is sent into the reverse nozzle pipe by the mother liquor circulation pump 8 through the upper liquid pipe 6, and is reversed from the nozzle 5 to the direction of the airflow from bottom to top The gas-liquid reversely collides to form a...

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Abstract

An application of power wave washer in absorbing CO2 from the tail gas generated by ammona-acid method is disclosed. In said power wave washer, the fume containing CO2 flows downward and the circulating liquid is prayed up ward. They are collided to generate a foam region, wheremore than 95% of CO2 in absorbed by said circulating liquid.

Description

technical field [0001] The invention relates to low-concentration SO produced in sulfuric acid production, non-ferrous metal smelting, thermal power plants and other industries 2 Tail gas absorption treatment method and equipment, especially a dynamic wave scrubber applied to ammonia-acid method SO for the first time 2 Exhaust gas absorption process. Background technique [0002] Ammonia-acid SO 2 The tail gas absorption process is to use (NH 4 ) 2 SO 3 -NH 4 HSO 3 -(NH 4 ) 2 SO 4 The mixed solution is the absorption mother liquor, which absorbs SO in the flue gas 2 , and recover low concentration SO 2 , the process is divided into four steps: absorption, absorbent regeneration, decomposition and neutralization. The main chemical reactions are as follows: [0003] 1. Absorbent for SO 2 The chemical reaction formula for absorption is as follows: [0004] <chemistry num="001"> <chem file="200410021942_cml001.xml" / > < / chemistry> [0005] &...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/78
Inventor 严雪峰刘利民徐毅敏冉峻南
Owner 富民薪冶工贸有限公司
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