学术论文

      “W”火焰锅炉脱硝超低排放技术与经济分析

      Technical and Economical Analysis on Denitration Ultral-Low Emission of W-Flame Boilers

      摘要:
      针对西南某电厂4台300 MW燃煤发电“W”火焰锅炉脱硝提效方案进行技术经济比较,通过常规不同脱硝技术路线的组合,在变化催化剂的加装体积量的条件下进行比较,得出采用LN B+SNCR+SCR可以有效提高“W”火焰锅炉达标排放的可靠性,但会导致脱硝系统的进一步复杂化.同时在初期按照超低排放的要求加装催化剂.可以弱化由于催化剂失效后每次加装不同体积催化剂带来的工作量.
      Abstract:
      The technical & economic comparison is carried out between the different programs of denitration efficiency enhancement for four 300-MW W-flame boilers of a coal-fired power plant in southwestern China.By comparing the combinations of different conventional denitration techniques under the conditions of varying catalyst volumes,it is concluded that the combination of LNB +SNCR+SCR can improve the reliabihty of NOx emission within the prescribed standard effectively but make the denitration system more complicated.If the catalyst volume is added in accordance with the needs of ultra-low emissions at the beginning,the workload of reloading will be reduced when the catalyst is invalid.
      Author: WANG Jianfeng YOU Liangzhou HU Da XIN Xiaoyin
      作者单位: 华电电力科学研究院,浙江杭州,310030
      刊 名: 中国电力 ISTICPKU
      Journal: Electric Power
      年,卷(期): 2017, 50(3)
      分类号: TM621 X701
      在线出版日期: 2017年4月6日