Study On The Removal Of Sulfur Dioxide From Industrial Waste Gas By Ammonia Method

SO₂ is currently one of the main pollutants in the atmosphere.Gas chemical,metallurgical and power sectors emissions contain large amounts of SO₂ in the modern industrial production,so we should treatmen it to prevent acidification Soil,water,and destroy the ecological balance.The study experimented a process technology which removes sulfur dioxide in industrial waste gases using ammonia method in impinging stream gas-liquid reactor and using?NH₄?₂SO₃ as absorber.The first phase of the experiment,the impact on the flow reactor pressure swirl nozzle atomization characteristics were studied.The second phase of the experiment,it is apparent that the order of factors that effect the efficiency of desulfurization by using ammonia method to remove the sulfuric acid tail gas in impinging stream gas-liquid reactor through single factor experiment and orthogonal design experiments: The absorption liquid concentration of?NH₄?₂SO₃>the intake of SO₂ content>atomization pressure.And we determined the best technological conditions are : The absorption liquid?NH₄?₂SO₃ concentration is 30%;and The atomization pressure is 1.0MPa;and The Liquid gas ratio of 0.280L/m³.In these conditions,we found the desulfurization rate is 98.22%.The model was:The third experimental phase,it is apparent that the order of factors that effect the efficiency of desulfurization by using ammonia method to remove the flue gas in impinging stream gas-liquid reactor through single factor experiment and orthogonal design experiments: atomization pressure>The absorption liquid concentration of?NH₄?₂SO₃>the intake of SO₂ content.And we determined the best technological conditions are : The absorption liquid?NH₄?₂SO₃ concentration is 30%;and The atomization pressure is 1.4MPa;and The Liquid gas ratio of 0.362L/m³.In these conditions,we found the desulfurization rate is 96.87%.The model was.