开孔导流管喷动床烟气脱硫技术实验研究  

Experimental study on flue gas desulfurization by using spouted bed with spotting punch draft tube

作　　者：贺亮[1] 张少峰[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《化学工程》2008年第9期63-66,共4页Chemical Engineering(China)

基　　金：河北省科学技术研究与发展计划项目(02212221D)

摘　　要：研究了一种新型的半干法脱硫开孔导流管喷动床。在相同静床层高度下,研究了其最小喷动速度、最大喷动压降、喷动高度;在相同钙硫摩尔比、入口SO2质量浓度、进气温度、绝热饱和温差条件下,以消石灰为脱硫剂,研究了其脱硫性能。实验结果表明,与传统柱锥型喷动床相比,开孔导流管喷动床具有更好的流体力学性能和脱硫效率。实验条件下最适宜的操作条件为:钙硫摩尔比为0.9—2.5,进气温度为120—130℃,绝热饱和温差为10℃。A new type of spouted bed with spotting punch draft tube was proposed for semi-dry flue gas desulfurization technology. Its minimum spouted velocity, maximum spouted pressure drop and spouting height were studied at the same bed height, and its SOe removal efficiency was studied at the same molar ratio of calcium to sulfur, inlet SO2 mass concentration, inlet temperature and approach to saturation temperature with calcium hydroxide as desulfurizing agent. The results show that the both hydrodynamic characteristics and SO2 removal efficiency of this new type spouted bed are better than those of conventional one. The optimal operation conditions in the experiment are： the molar ratio of calcium to sulfur is 0.9-2.5; inlet temperature is 120-130 ℃ and approach to saturation temperature is 10 ℃.

关 键 词：半干法烟气脱硫 开孔导流管喷动床 流体力学性能 脱硫率 

分 类 号：X701.3[环境科学与工程—环境工程]