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海水脱硫
海水脱硫工艺是利用海水的碱度达到脱除烟气中二氧化硫的一种脱硫方法。在脱硫吸收塔内，大量海水喷淋洗涤进入吸收塔内的燃煤烟气，烟气中的二氧化硫被海水吸收而除去，净化后的烟气经除雾器除雾、经烟气换热器加热后排放。吸收二氧化硫后的海水与大量未脱硫的海水混合后，经曝气池曝气处理，使其中的SO32-被氧化成为稳定的SO42-，并使海水的PH值与COD调整达到排放标准后排放大海。海水脱硫工艺一般适用于靠海边、扩散条件较好、用海水作为冷却水、燃用低硫煤的电厂。海水脱硫工艺在挪威比较广泛用于炼铝厂、炼油厂等工业炉窑的烟气脱硫，先后有20多套脱硫装置投入运行。近几年，海水脱硫工艺在电厂的应用取得了较快的进展。此种工艺最大问题是烟气脱硫后可能产生的重金属沉积和对海洋环境的影响需要长时间的观察才能得出结论，因此在环境质量比较敏感和环保要求较高的区域需慎重考虑。
Seawater desulfurization technology is a desulfurization method which uses the alkalinity of seawater to remove sulfur dioxide from flue gas. In the desulfurization absorption tower, a large amount of seawater sprays and washes into the coal-fired flue gas in the absorption tower. Sulfur dioxide in the flue gas is absorbed by seawater and removed. The purified flue gas is defogged by the demister and heated by yamodai.37ix.com.cnmojuljs.37ix.com.cnzaoxingcz.37ix.com.cnwww.baodingjiaju.cnthe flue gas heat exchanger and discharged. After mixing the seawater absorbed by sulfur dioxide with a large amount of hengshui.75ix.cnpaishuigou.37ix.com.cnseawater not desulfurized, the SO32 - in the seawater is oxidized to a stable SO42 - by aeration in the aeration tank, and the PH value and COD of the seawater are adjusted to meet the discharge standard and discharged into the sea. Seawater desulfurization technology is generally applicable to power plants which are near the seashore, have good diffusion conditions, use seawater as cooling water and use low sulfur coal. Seawater desulfurization process is widely used in flue gas desulfurization of industrial furnaces such as aluminium refineries and oil refineries in Norway. More than 20 sets of desulfurization units have been put into operation. In recent years, the application of seawater desulfurization technology in power plants has made rapid progress. The biggest problem of this process is that the deposition of heavy metals and their impact on the marine environment after flue gas desulfurization can only be concluded after a long period of observation. Therefore, careful consideration should be taken in areas where environmental quality is sensitive and environmental protection requirements are high.
Seawater desulfurization technology is a desulfurization method which uses the alkalinity of seawater to remove sulfur dioxide from flue gas. In the desulfurization absorption tower, a large amount of seawater sprays and washes into the coal-fired flue gas in the absorption tower. Sulfur dioxide in the flue gas is absorbed by seawater and removed. The purified flue gas is defogged by the demister and heated by yamodai.37ix.com.cnmojuljs.37ix.com.cnzaoxingcz.37ix.com.cnwww.baodingjiaju.cnthe flue gas heat exchanger and discharged. After mixing the seawater absorbed by sulfur dioxide with a large amount of hengshui.75ix.cnpaishuigou.37ix.com.cnseawater not desulfurized, the SO32 - in the seawater is oxidized to a stable SO42 - by aeration in the aeration tank, and the PH value and COD of the seawater are adjusted to meet the discharge standard and discharged into the sea. Seawater desulfurization technology is generally applicable to power plants which are near the seashore, have good diffusion conditions, use seawater as cooling water and use low sulfur coal. Seawater desulfurization process is widely used in flue gas desulfurization of industrial furnaces such as aluminium refineries and oil refineries in Norway. More than 20 sets of desulfurization units have been put into operation. In recent years, the application of seawater desulfurization technology in power plants has made rapid progress. The biggest problem of this process is that the deposition of heavy metals and their impact on the marine environment after flue gas desulfurization can only be concluded after a long period of observation. Therefore, careful consideration should be taken in areas where environmental quality is sensitive and environmental protection requirements are high.