摘要
选择性还原脱硝是目前治理燃煤电厂烟气氮氧化物效率最好、也最成熟的工艺技术。以阳城电厂8号机组600MW脱硝工程为实例,介绍该厂烟气脱硝工程在高尘布置下的系统结构和工艺流程特点:烟道设计压力提高1.0～1.5MPa,烟道内部考虑积灰和热膨胀的影响,烟道和反应器设计要进行流场模拟和系统优化。通过对脱硝工程的安装调试,得到以下经验:烟道接口的标注,氨区考虑疏水问题,统一标准和规范等。阳城电厂烟气脱硝工程不仅对熟悉和掌握烟气脱硝技术起到了推动作用,为脱硝工程的安装和执行提供了宝贵的经验。
The selective catalytic reduction （SCR） is one of the most sophisticated and highly-efficient technology for reducing nitrogen oxide in coal-fired power plant. By way of example, the system configuration and process flow of the flue gas denitrification project in high dust disposal, pertaining to No.8 Unit of 600 MW in Yangcheng Power Plant, was introduced. The design pressure of flue channel was increased 1-1.5 MPa. Considering accumulating dust and thermal expansion in the flue channel interior, the flue channel and reactor were simulated and optimized by flow field. Some experiences were attained in the course of installing and debugging, including label on flue interface, dewatering in ammonia region and unified standards and criterion. The work of flue gas denitrification in Yangcheng Power Plant not only promoted the acquaintance and mastery of flue gas denitrification but also offered some experiences of installing and implement of denitrifieation work.
出处
《中国电力》
CSCD
北大核心
2009年第8期75-79,共5页
Electric Power
关键词
烟气脱硝
阳城电厂
选择性催化还原
应用
flue gas denitrification
Yangcheng Power Plant
selected catalytic reduction （SCR）
application
