SCR脱硝系统蜂窝式催化剂性能评估及寿命管理

发布时间：2017-12-26 20:21

  本文关键词：SCR脱硝系统蜂窝式催化剂性能评估及寿命管理　出处：《热力发电》2016年11期 　论文类型：期刊论文

  更多相关文章： 烟气脱硝 SCR 蜂窝式催化剂 脱硝效率 氨逃逸量 活性 寿命管理

【摘要】：以某燃煤电厂选择性催化还原(SCR)脱硝系统蜂窝式催化剂为研究对象,在中试试验台上对不同运行时间下的催化剂脱硝性能进行了检测,评估了不同工况下的脱硝效率、氨逃逸量、SO2/SO3转化率等性能参数,并运用X射线衍射、X射线荧光光谱仪和氮气吸脱附等方法对催化剂进行了理化特性表征。结果表明:催化剂未发生因运行温度过高造成的烧结失活;运行过程中飞灰沉积造成的微观特性劣化是导致催化剂脱硝性能下降的主要原因。在此基础上给出了催化剂寿命管理建议,以期为电厂的运行管理提供参考。
[Abstract]:In a coal-fired power plant (SCR) selective catalytic reduction denitration system of honeycomb catalyst as the research object, in the pilot test rig on catalyst for different operation time under the denitrification performance were tested, evaluated under different operating conditions, denitration efficiency of ammonia escape, SO2/SO3 conversion rate and other performance parameters, and the use of X X-ray diffraction, X-ray fluorescence spectrometer X and nitrogen adsorption desorption method on the physicochemical properties of catalysts were characterized. The results showed that: the catalyst did not cause deactivation due to the high operation temperature; the deterioration of the microstructure caused by fly ash deposition was the main reason leading to the decrease of the denitrification performance of the catalyst. On the basis of this, the suggestion of the life management of the catalyst is given in order to provide reference for the operation and management of the power plant.
【作者单位】： 西安热工研究院有限公司苏州分公司;
【分类号】：X773
【正文快照】： YAO Yan,WANG Lipeng,KONG Fanhai,WANG Lele,LIU Chenqing(Xi'an Thermal Power Research Institute Co.,Ltd.,Suzhou 215011,China)利用选择性催化还原法(SCR)去除氮氧化物(NOx)是目前应用最为广泛的脱硝技术,催化剂是SCR脱硝技术的重点,催化剂的性能和寿命直接决定了整个机，

本文编号：1338713