| 宏量和微量元素在炉内喷钙脱硫过程中的作用 |
| 摘要点击 1399 全文点击 1589 投稿时间：1997-10-22 |
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| 中文关键词 脱硫 催化 钙硫比 喷钙脱硫 金属氧化物 |
| 英文关键词 desulphurization catalysis Ca/S limestone desulfurization metal oxides |
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| 中文摘要 |
| 研究添加粉煤灰对脱硫过程的作用,实验在滴管炉上进行,温度为1200℃。结果表明,一些宏量元素的金属氧化物(如Fe2O3)对脱硫过程具有催化作用,但这种催化作用随Fe2O3掺加量的改变而变化,先升高后降低,有一个最佳值;一些微量元素的金属氧化物(如MnO2)对脱硫过程具有更强的催化氧化作用,当MnO2的掺加量为3%时,脱硫效率提高近1倍. |
| 英文摘要 |
| This paper investigates the effects of adding coal ash under limestone desulphurization in pulverized-coal boilers.The experiments were carried out at 1200℃ in the particle furnace.The experimental results show that some massive elements' metal oxides,for example,Fe2O3,may catalyze the reaction of SO2 with limestone,and this catalytic effect changes with the increasing metal oxides weight ratio.Moreover,a few micro-elements in coal ash,e.g.MnO2,play an important catalytic and oxide role in the proceedings of desulphurization.The desulphurization efficiency nearly double when the addition of MnO2 is 3%. |
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