摘要
脱硝催化剂性能检测与评估是SCR脱硝系统运行管理的一项重要工作,本研究对某600MW燃煤电厂在役蜂窝式脱硝催化剂性能进行了检测、分析,掌握了催化剂样品整体性能现状。检查了催化剂外观情况,对催化剂理化特性(微观比表面积、化学成分、机械性能(磨损率、抗压强度))、工艺特性(脱硝效率、活性、氨逃逸、SO2/SO3转化率)进行了检测。结果表明催化剂存在孔道及微孔堵塞、活性下降现象,活性下降约19%,超过设计值。通过对催化剂性能的检测分析,提出了SCR脱硝系统后续优化运行建议。
Properties testing and evaluation is one of most important work in SCR De-NOx system operation and management. In this study, major properties of De-NOx catalyst samples from a 600MW coal fired power plant were tested and analyzed, the research made a comprehensive evaluation of the catalyst samples. Properties including special surface area, chemical composition, abrasion ratio, compressive strength, denitrification efficiency, activity, ammonia slip and SO2/SO3 conversion rate were tested, samples were also visually checked. Results indicated that some catalyst channels and micro-pores were blocked, activity declined by more than 19 % compared with designed value of fresh catalyst. The optimized operation has been mentioned after testing and analysis of catalyst samples.
出处
《能源环境保护》
2017年第2期58-62,共5页
Energy Environmental Protection
关键词
SCR
脱硝催化剂
性能检测
活性
SCR,De-NOx catalyst, Property testing, Activity.
