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SO2在多组分悬浮液中的吸收反应特性 总被引:1,自引:1,他引:0
The emission of sulfur dioxide in flue gases is an important problem in industry involving combustion of coal. The wet scrubbing process using lime/limestone slurry as the scrubbing medium is currently the dominant technology for the flue gas desulfurization. Due to the presence of numerous ionic and neutral species in the slurry, the chemical reactions involved in the slurry upon absorption of sulfur dioxide are complex. In this paper, a method of measuring the sulfur dioxide absorption in multi-component suspensions was developed and the characteristics of sulfur dioxide absorption were investigated. The results show that different additives chosed in the experiment can improve the ability of SO2 absorption. As to the same additive, the improvement effect is differ with different concentration. For the magnesium hydroxide additive, its optimum concentration is 1×10-4 mol/L. Experiment results suggested that dissolved sulfur dioxide reacts mainly with the magnesium sulfite ion pair which is responsible for the increased absorption rate of SO2. However, when CO2-3 or SO24- anions are present in the solution, the catalytic effect of magnesium hydroxide precipitate on sulfur dioxide absorption reduces. According to the experiments, absorbents with better performance can be optimized to be applied in semi-dry or wet FGD process to raise SO2 removal efficiency. 相似文献
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在与芭比一同成长的人和看着芭比成长的人的心中,芭比就是美丽最形象最动人的代名词,38:18:33,作为数字并不意味着什么大不了的魔力,但作为女性人体的三围双例,却对男人是永远致命的诱惑,再加上朱唇轻启,明眸皓齿、如雪肌肤,就足以让芭比看上去美丽乖巧,性感迷人,成为真正的尤物。 相似文献
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