热力发电2017，Vol.46Issue(12)：93-98,6.DOI:10.3969/j.issn.1002-3364.2017.12.093
褐煤机组烟气冷凝取水污染物减排特性
Pollutants reduction characteristics of brown coal-fired units during water recovery from flue gas
摘要
Abstract
In order to investigate the pollutants reduction characteristics of the brown coal-fired power plants during water recovery from flue gas, a flue gas condensation experimental system was built up in a 600 MW lignite power plant. The experimental results show that, as the inlet temperature of cooling water increased, the removal efficiency of SO2 decreased from 9.8％ to 6.8％. When the volume fracture of NH3 in flue gas at the heater inlet increased, the removal efficiency of NH4+ gradually rose, which was between 19.7％ and 43.1％ under the test conditions. With the increasing feed water temperature, the removal efficiency of PM2.5 and PM10 increased at first and then decreased. In contrary, the removal efficiency of PM1 exhibited a reverse trendency. The removal efficiency of PM2.5 was below 50％ under present experimental condition, but it could be further improved by optimizing the heat exchanger and demister.关键词
褐煤机组/烟气冷凝取水/污染物/PM2.5/SO2/NH4+/减排效果/脱除效率Key words
liginte coal-fired unit/flue gas water recovery/pollutant/PM2.5/SO2/NH4+/reduction effect/removal efficiency分类
能源科技引用本文复制引用
王一坤,吴利平,解冰,王志超,成汭珅,刘廷兴..褐煤机组烟气冷凝取水污染物减排特性[J].热力发电,2017,46(12):93-98,6.基金项目
中国华能集团公司总部科技项目(HNKJ15-H11) Science and Technology Project of China Huaneng Group (HNKJ15-H11) （HNKJ15-H11）
