电离放电烟气脱硫的研究  

Study on ionization discharge flue gas desulphurization

作　　者：周建刚[1] 白希尧[1] 詹科萍[1] 吴晓东[1] 

机构地区：[1]大连海事大学环境科学与工程学院

出　　处：《大连海事大学学报》2004年第2期64-67,共4页Journal of Dalian Maritime University

基　　金：国家自然科学基金重点资助项目(60031001).

摘　　要：指出以碱性物质钙作为SO2吸收剂的湿法脱硫方法存在设备昂贵、运行费用高、占地大、污水处理设置庞大等不足之处.日本在20年前开始研究的干式电子束法、窄脉冲电晕放电脱硫等方法,前者仍存在外加吸收剂NH3、生成的硫酸铵是市场不畅销的低效化肥及电磁波强辐射问题;后者由于电场强度低下,只是NH3起着吸收作用,是失败的事例.近期研究成功强电离放电方法脱硫新技术,可实现在70～160℃下,小加吸收剂、催化剂干式脱硫,SO2脱除的等离子体反应过程仅为0.8s,其脱除率、回收率、收集率分别达到了94%、90%、99%以上,为燃烧烟气资源化脱硫提供一项新方法.Alkalic substance calcium is the absorbefacient to SO_2. This wet means for desulphurization has some deficiency such as costly equipment,high running expense,large occupation of land,bulky sewage treatment establishment etc. Dry electron beam means and narrow impulse corona for desulphurization began in Japan twenty years ago.The first needs absorbefacient NH_3 in addition and the product is low efficiency fertilizer which is not salable. It also produces strong electromagnetic wave. The latter is a unsuccessful example which has low electric field intensity and SO_2 call only be absorbed by NH_3. Recently the new technique of strong ionization discharge for desulphurization is excogitated, which realizes dry desulphurization without absorbefacient and catalyst al 70～160 ℃.The plasma reaction course cost only 0.8 s. Its desulphurization ratio.recycle ratio and ingather ratio can reach 94%、90%、99% separately. Strong ionization discharge provides a new technique for resourcify flue gas desulphurization.

关 键 词：资源化烟气脱硫 电子束 窄脉冲电晕放电 强电离放电 

分 类 号：X511[环境科学与工程—环境工程]