促进燃煤电厂烟尘超低排放
发布时间:2018-09-01 07:25
【摘要】:正1传统烟尘处理技术的发展国内外采用的传统燃煤电厂污染物控制技术主要为:热烟气通过SCR选择性催化脱硝,干式电除尘器DESP除尘前利用空预器使烟气温度降到120~140℃。为提高脱硫效率和控制水雾排放,在湿式脱硫FGD塔前后加装热交换器GGH,使烟气温度降到70~90℃再进入脱硫塔,脱硫后的烟气从60℃左右再加热到70~90℃排放。欧洲燃煤电厂至今仍采用这一技术路线,实现烟囱出口颗
[Abstract]:The main pollutant control technologies used in coal-fired power plants at home and abroad are as follows: hot flue gas is selectively catalyzed by SCR, and the flue gas temperature is lowered to 120-140 C by air pre-heater before DESP. In order to improve desulfurization efficiency and control water mist discharge, the FGD tower is installed before and after wet desulfurization. The heat exchanger GGH lowers the flue gas temperature to 70~90 C and then enters the desulfurization tower. After desulfurization, the flue gas is reheated from 60 C to 70~90 C and discharged. This technical route is still used in European coal-fired power plants to realize chimney outlet particles.
【作者单位】: 神华国能(神东电力)集团;
【基金】:国家高技术研究发展计划(863计划)项目(2013AA065000)
【分类号】:X773
[Abstract]:The main pollutant control technologies used in coal-fired power plants at home and abroad are as follows: hot flue gas is selectively catalyzed by SCR, and the flue gas temperature is lowered to 120-140 C by air pre-heater before DESP. In order to improve desulfurization efficiency and control water mist discharge, the FGD tower is installed before and after wet desulfurization. The heat exchanger GGH lowers the flue gas temperature to 70~90 C and then enters the desulfurization tower. After desulfurization, the flue gas is reheated from 60 C to 70~90 C and discharged. This technical route is still used in European coal-fired power plants to realize chimney outlet particles.
【作者单位】: 神华国能(神东电力)集团;
【基金】:国家高技术研究发展计划(863计划)项目(2013AA065000)
【分类号】:X773
【共引文献】
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