Gas-liquid distribution system and process for absorbing flue gas based on cavitation machine coupling aid

A technology of gas-liquid distribution and gas-liquid distributor, which is applied in gas treatment, separation methods, dispersed particle separation, etc., can solve the problems of high cost of oxidant, low utilization rate, slow reaction rate, etc., and achieve high utilization rate of additives , The effect of simple device composition and easy operation

Inactive Publication Date: 2020-12-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

of which NaClO 2 Oxidants such as high cost and ClO 2 , KMnO 4 cause corrosion problems
o 3 is a common strong oxidizing agent, but O 3 The direct oxidation reaction has high selectivity and slow reaction rate, and its utilization rate is not high

Method used

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  • Gas-liquid distribution system and process for absorbing flue gas based on cavitation machine coupling aid
  • Gas-liquid distribution system and process for absorbing flue gas based on cavitation machine coupling aid
  • Gas-liquid distribution system and process for absorbing flue gas based on cavitation machine coupling aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Such as Figure 1-3 As shown, the gas-liquid distribution system of the present invention is assembled and the air-tightness and water-tightness of the device are checked.

[0084] Choose boiler flue gas as the gas source, the concentration of SO2 is 900ppm, the concentration of NO is 300ppm, the concentration of HC is 150ppm, and the concentration of particulate matter is 71.2mg / m3.

[0085] Put MnSO4·4H2O and FeSO4·7H2O into the absorption liquid to make the concentration 2mmol / L, put NaCl and SDS into the absorption liquid so that the mass concentrations of NaCl and SDS in the absorption liquid are respectively 0.7g / L and 4mg / L .

[0086] Control the intake flow rate of absorption tower 3 to 500m3 / h, the flow rate of liquid distributor 4 to 2t / h, wherein the flow rate from cavitation machine 8 is 1.5t / h, and the circulation flow rate of absorption liquid is 0.5t / h.

[0087] Control the pH of the feed water in the lower part of the absorption tower 3 of the additive...

Embodiment 2

[0090] Such as Figure 1-3 As shown, the gas-liquid distribution system of the present invention is assembled and the air-tightness and water-tightness of the device are checked.

[0091] Choose boiler flue gas as the gas source, the concentration of SO2 is 1000ppm, the concentration of NO is 400ppm, the concentration of HC is 200ppm, and the concentration of particulate matter is 75.7mg / m3.

[0092] Put MnSO4·4H2O and FeSO4·7H2O into the absorption liquid to make the concentration 2mmol / L, put NaCl and SDS into the absorption liquid so that the mass concentrations of NaCl and SDS in the absorption liquid are respectively 0.7g / L and 4mg / L .

[0093] Control the intake flow rate of absorption tower 3 to 500m3 / h, the flow rate of liquid distributor 4 to 2t / h, wherein the flow rate from cavitation machine 8 is 1.5t / h, and the circulation flow rate of absorption liquid is 0.5t / h.

[0094] Control the pH of the feed water in the lower part of the absorption tower 3 of the additiv...

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Abstract

The invention discloses a gas-liquid distribution system for absorbing flue gas based on a cavitation machine coupling aid. The gas-liquid distribution system comprises a multi-pollutant flue gas source, an absorption tower, a gas-liquid distributor, a U-shaped drying pipe, a flue gas analyzer, a particle collector, a cavitation machine and an absorption liquid collector; the lower part of the absorption tower is connected with the multi-pollutant flue gas source through a rotor flow meter, and the upper part of the absorption tower is provided with the gas-liquid distributor; the multi-pollutant flue gas source is also connected with the flue gas analyzer and the particle collector in sequence; the upper end of the absorption tower is sequentially connected with the U-shaped drying pipe,the flue gas analyzer and the particle collector; the gas-liquid distributor is connected with the lower part of the absorption tower through a water pump; the gas-liquid distributor is also connectedwith a cavitation machine; the cavitation machine is positioned on one side of the absorption tower; the absorption liquid collector is connected with the bottom of the lower end of the absorption tower. The invention also provides an absorption process of the system. The aid is high in utilization rate; various pollutants are removed, the pollutant removal rate is high, and the treated gas amount is large; the energy consumption is relatively low; the method is simple in process, simple in device and easy to operate.

Description

technical field [0001] The invention relates to the field of environmental protection technology, in particular to a gas-liquid distribution system and process for absorbing flue gas based on a cavitation machine coupling aid. Background technique [0002] Both automobile exhaust and boiler flue gas cause serious harm to the natural environment and human health, especially SO 2 , NO x And inhalable particulate matter, after being inhaled by people, the inhalable particulate matter will accumulate in the respiratory system and cause many diseases, SO 2 It is a colorless, poisonous gas with a pungent odor. Inhalation of SO 2 Can cause respiratory damage, severe pneumonia and even lung cancer, NO x As a primary pollutant, it will not only irritate people's eyes, nose, throat and lungs, but also react to form secondary pollutants, which is easy to form photochemical smog. The main cause of acid rain is HNO in rainwater. 3 and H 2 SO 4 The concentration is relatively high, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/76B01D53/56B01D53/50B01D53/18B01D53/14
CPCB01D53/1456B01D53/1481B01D53/18B01D53/501B01D53/56B01D53/76B01D53/78B01D2251/102B01D2258/0283
Inventor 李登新许威车林轩姚春洪王凡郭媛媛
Owner DONGHUA UNIV
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