南京市燃煤电厂不同规模机组大气污染物排放强度研究
|
摘要
基于2015年7月至2018年6月南京市燃煤电厂典型机组二氧化硫、氮氧化物、烟尘在线监测排放量、实际发电量及供热量等基础数据及污染控制技术,建立了主要大气污染物排放强度计算方法,利用该方法计算了近3年55MW、300MW、600MW、1030MW等4种规模机组的二氧化硫、氮氧化物、烟尘排放强度,并开展了相关分析研究。结果表明:南京市主要燃煤发电机组二氧化硫、氮氧化物、烟尘的排放强度逐年降低,且明显低于《火电行业排污许可证申请与核发技术规范》中的绩效值。二氧化硫排放强度随着机组规模的增大而减小,1030WM与600MW相比排放强度下降幅度最大,近3年最高下降幅度达到49%。烟尘排放强度随着机组规模增大而减小,机组规模600WM以上烟尘排放强度下降幅度巨大,1030WM与600MW相比近3年最高降幅达到67%。
Based on the basic data and pollution control technology of sulfur dioxide,nitrogen oxides,smoke and dust on-line monitoring emission,actual power generation and heat supply of typical units in Nanjing coal-firedpower plant from July 2015 to June 2018,The calculation method of emission intensity of main air pollutants was es-tablished.The emission intensity of sulfur dioxide,nitrogen oxides and smoke and dust from four types of units in re-cent three years was calculated by using this method,including 55 MW,300 MW,600 MW and 1030 MW.The resultsshow that the emission intensity of sulfur dioxide,nitrogen oxides and soot of main coal-fired generating units inNanjing decreases year by year,and is significantly lower than the performance value of " Technical specification forapplication and approval of discharge permit in thermal power industry ".The emission intensity of SO2 decreaseswith the increase of unit scale.Compared with 600 MW,the emission intensity of 1030 WM decreases the most,withthe highest decrease rate of 49% in recent three years.The intensity of smoke and dust emission decreases with the in-crease of the unit scale.The intensity of smoke and dust emission decreases enormously when the unit scale is over600 WM.Compared with 600 MW,1030 WM has the highest decrease of 67% in recent three years.
Based on the basic data and pollution control technology of sulfur dioxide,nitrogen oxides,smoke and dust on-line monitoring emission,actual power generation and heat supply of typical units in Nanjing coal-firedpower plant from July 2015 to June 2018,The calculation method of emission intensity of main air pollutants was es-tablished.The emission intensity of sulfur dioxide,nitrogen oxides and smoke and dust from four types of units in re-cent three years was calculated by using this method,including 55 MW,300 MW,600 MW and 1030 MW.The resultsshow that the emission intensity of sulfur dioxide,nitrogen oxides and soot of main coal-fired generating units inNanjing decreases year by year,and is significantly lower than the performance value of " Technical specification forapplication and approval of discharge permit in thermal power industry ".The emission intensity of SO2 decreaseswith the increase of unit scale.Compared with 600 MW,the emission intensity of 1030 WM decreases the most,withthe highest decrease rate of 49% in recent three years.The intensity of smoke and dust emission decreases with the in-crease of the unit scale.The intensity of smoke and dust emission decreases enormously when the unit scale is over600 WM.Compared with 600 MW,1030 WM has the highest decrease of 67% in recent three years.
引文
[1]王旭睿.氮氧化物危害及处理方法[J].当代化工研究,2018(10):116-117.
[2]汪克亮,孟祥瑞,杨力,等.我国主要工业省区大气污染排放效率的地区差异、变化趋势与成因分解[J].中国环境科学,2017,37(3):888-898.
[3]包洪新,朱明,于忠华.南京如何打赢蓝天保卫战?[N].中国环境报,2018-4-17(003).
[4]江平,陈标,祁乐,等.大型燃煤火电机组集中供热的节能减排效果分析[J].广西电力,2017,40(2):22-24.
[5]朱永乐,赵永华,张帅.燃煤电厂脱硫技术进展[J].天津化工,2018,32(2):1-3.
[6]郭伟平.火力电厂锅炉脱硫脱硝及烟气除尘的技术分析[J].能源技术与管理,2018,43(5):148-150.
[7]席磊.燃煤电厂烟气脱硝SCR技术还原剂选择的分析[J].中国资源综合利用,2018,36(3):102-103.
[8]刘含笑,姚宇平,郦建国,等.电除尘技术集成在高灰煤超低排放工程中的应用[J].环境科学与技术,2018,41(4):151-159.
[2]汪克亮,孟祥瑞,杨力,等.我国主要工业省区大气污染排放效率的地区差异、变化趋势与成因分解[J].中国环境科学,2017,37(3):888-898.
[3]包洪新,朱明,于忠华.南京如何打赢蓝天保卫战?[N].中国环境报,2018-4-17(003).
[4]江平,陈标,祁乐,等.大型燃煤火电机组集中供热的节能减排效果分析[J].广西电力,2017,40(2):22-24.
[5]朱永乐,赵永华,张帅.燃煤电厂脱硫技术进展[J].天津化工,2018,32(2):1-3.
[6]郭伟平.火力电厂锅炉脱硫脱硝及烟气除尘的技术分析[J].能源技术与管理,2018,43(5):148-150.
[7]席磊.燃煤电厂烟气脱硝SCR技术还原剂选择的分析[J].中国资源综合利用,2018,36(3):102-103.
[8]刘含笑,姚宇平,郦建国,等.电除尘技术集成在高灰煤超低排放工程中的应用[J].环境科学与技术,2018,41(4):151-159.