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提出一种干式烟气脱硫技术方案 ,并在 40 0～ 80 0℃的温度下进行了实验研究。为了提高脱硫效率和脱硫剂的利用率 ,还对在床内循环的脱硫剂进行了蒸汽处理。研究了烟气温度、Ca/ S、床内气流速度、床内固体物料浓度等参数对脱硫效率的影响 ,以及各参数之间的关系。研究发现温度对脱硫效率有明显的影响 ,近 6 0 0℃时最高。增加 Ca/ S可以大幅度提高脱硫效率。此外 ,适当降低床内气体流速使床内的总物料量增加 ,可以提高脱硫效率。研究表明 ,蒸汽处理对脱硫效率的提高有明显效果 ,在本实验条件下 ,处理后的脱硫效率提高 42 .1%。
Proposed a dry flue gas desulfurization technology program, and carried out at 40 0 ~ 80 0 ℃ temperature experimental study. In order to improve desulfurization efficiency and desulfurization agent utilization, but also in the bed circulating desulfurization agent was steam treatment. The influences of flue gas temperature, Ca / S, air velocity in bed and solid bed concentration on the desulfurization efficiency were studied, and the relationship between the parameters was also studied. The study found that temperature has a significant effect on desulfurization efficiency, the highest at nearly 600 ℃. Increase Ca / S can greatly improve the desulfurization efficiency. In addition, the appropriate reduction of gas flow in the bed to increase the total amount of material in the bed, can improve the desulfurization efficiency. The research shows that steam treatment has obvious effect on the improvement of desulfurization efficiency. Under the experimental conditions, the desulfurization efficiency after treatment is increased by 42.1%.