Resourceful treatment method for purifying contaminated air containing hydrogen sulfide and ammonia gas by plasma
A plasma and air pollution technology, applied in gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems of high operating costs, secondary pollution, and difficult purification, so as to reduce operating costs and eliminate secondary pollution. Effect
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Embodiment 1
[0029] like figure 1 and figure 2 Shown is an example of a process for generating ammonium sulfate based on dielectric barrier discharge oxidation of hydrogen sulfide followed by reaction with ammonia gas.
[0030] (1) Contaminated air containing hydrogen sulfide and ammonia enters the membrane separator for separation.
[0031] (2) The polluted air containing hydrogen sulfide enters the corona discharge plasma device, the plasma energy density is 0.2J / L, the reaction time is 1s, and the reaction temperature is -10°C, so that hydrogen sulfide within 100ppm is oxidized into sulfur-containing oxides .
[0032] (3) Introduce the generated sulfur-containing oxides and the ammonia gas in the ammonia-contaminated air and the moisture in the ammonia-contaminated air treated in step 1) into the catalytic oxidation device, the reaction temperature is -20°C, and the reaction time is 2s , Pressure 0.3bar, the ammonia gas in the catalytic oxidation device reacts with sulfur-containing...
Embodiment 2
[0036] (1) Contaminated air containing hydrogen sulfide, ammonia, and ozone enters the condensing separator for separation.
[0037] (2) The polluted air containing hydrogen sulfide and ozone enters the dielectric barrier discharge device, and 5g of spherical titanium oxide is added, the plasma energy density is 5J / L, the reaction time is 5s, and the reaction temperature is 55°C, so that hydrogen sulfide within 200ppm is oxidized into Contains sulfur oxides.
[0038] (3) introduce the sulfur-containing oxide produced and the ammonia gas in the ammonia-contaminated air after processing in step 1), and the moisture in the ammonia-contaminated air to a thermodynamic combustion device, the reaction temperature is 30°C, the reaction time is 10s, At a pressure of 1 bar, the ammonia gas in the thermodynamic combustion device reacts with sulfur-containing oxides to produce ammonium sulfate aerosol, and the polluted air is purified into purified air.
[0039] (4) The purified air and ...
Embodiment 3
[0041] (1) Contaminated air containing hydrogen sulfide, hydrogen peroxide, and ammonia enters the pressure swing separator for separation.
[0042] (2) The polluted air containing hydrogen sulfide and hydrogen peroxide enters the arc discharge device, 8g of spherical zinc oxide is added, the plasma energy density is 10J / L, the reaction time is 10s, and the reaction temperature is 100°C, so that hydrogen sulfide in the range of 500ppm is oxidized into SOx.
[0043] (3) Introduce the generated sulfur-containing oxides and the ammonia gas in the ammonia-contaminated air and the moisture in the ammonia-contaminated air treated in step 1) into the plasma oxidation device, the reaction temperature is 80°C, and the reaction time is 20s , Pressure 2bar, the ammonia gas in the plasma oxidation device reacts with sulfur-containing oxides to produce ammonium sulfate aerosol, and the polluted air is purified into purified air.
[0044] (4) The purified air and the ammonium sulfate aeros...
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