摘要
在某火电厂选择性催化剂还原(selective catalyticreduction,SCR)脱硝装置投入运行19870h后,观察了其蜂窝状催化剂外观及内部孔道,并测试了催化剂比表面积、脱硝活性及SO2/SO3的转化率。将新鲜催化剂活性(K_0)与测试催化剂活性(K)进行比较,计算了K/K_0值。根据试验结果简单分析了催化剂失活是催化剂中毒、孔道堵塞等综合作用的结果,并提出了类似电厂催化剂运行及管理的建议。
After operating 19 870 hours in NO_x selective catalytic reduction(SCR) system of a thermal power plant, honeycomb catalyst appearance and internal pore were observed and catalyst BET specific surface area,denitration activity and the oxidations rate of SO_2/SO_3 were tested.Activity of fresh catalyst(K_0),activity of catalyst tested(K) and K/K0 were compared and calculated.Based on test results,it is found that the catalyst deactivation is due to a combination influence of catalyst poisoning,pore blocking and so on.Catalyst operation and management plan are proposed for other power plant.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2009年第S1期156-160,共5页
Proceedings of the CSEE
基金
国家高技术研究发展计划项目(2007AA05Z309)
国家重点基础研究发展计划项目(973项目)(2005CB221206)
科研院所技术开发专向基金项目"燃煤电站脱硝催化剂的开发及工程应用"
中国华能集团公司科技项目(HNKJ07-G03
HNKJ08-H09)~~
关键词
选择性催化还原
催化剂
活性
运行状况
selective catalytic reduction(SCR)
catalyst
activity
operation condition