一体化高效脱除NO_x和粉尘实验研究  

Experimental study on integrated removal of NO_x and dust by ceramic catalytic filter

作　　者：牛国平[1,2] 谭增强 邱长彪[3] 齐全 周梦伟 姚浩 石磊 NIU Guoping;TAN Zengqiang;QIU Changbiao;QI Quan;ZHOU Mengwei;YAO Hao;SHI Lei(Xi’an Thermal Power Research Institute Co.,Ltd.,Xi’an 710054,China;Xi’an West Boiler Environmental Protection Engineering Co.,Ltd.,Xi’an 710054,China;Huaneng Zuoquan Coal-fired Power Generation Co.,Ltd.,Zuoquan 032600,China)

机构地区：[1]西安热工研究院有限公司,陕西西安710054 [2]西安西热锅炉环保工程有限公司,陕西西安710054 [3]华能左权煤电有限责任公司,山西左权032600

出　　处：《热力发电》2019年第10期71-76,共6页Thermal Power Generation

基　　金：中国华能集团有限公司总部科技项目(HNKJ14-H10)~~

摘　　要：为了实现多种污染物的一体化脱除,缩短烟气净化流程,降低系统整体阻力,本文对陶瓷催化滤管进行了X射线光电子能谱(XPS)表征分析、比表面积及孔径分布分析等,研究了陶瓷催化滤管的物理化学特性在污染物脱除过程中的作用规律和内在的污染物脱除机制。搭建了多种污染物一体化脱除的实验台,实验研究了各种影响因素对陶瓷催化滤管一体化脱硝和除尘效率的影响。结果表明,在一体化脱除塔前喷射氨气,可实现粉尘和NOx的一体化高效脱除,陶瓷催化滤管出口粉尘质量浓度在5 mg/m^3以内,出口NOx质量浓度低于50 mg/m^3。To realize integrated removal of multiple pollutants and shorten the flue gas purification process and reduce the overall system resistance,the X-ray photoelectron spectroscopy(XPS)characterization and specific surface area and pore size distribution analysis were performed to study the role of the physical and chemical properties of the ceramic catalytic filter in the pollutants removal and the mechanism of the internal pollutant removal.Moreover,an experimental setup for integrated removal of multiple pollutants was built up,and experiments were conducted to study factors affecting the denitrification and dust removal performance of the ceramic catalytic filter tube integrated removal system.The results show that,injecting ammonia gas in front of the integrated removal tower can realize the integrated and efficient removal of dust and NOx.The mass concentration of dust at outlet of the ceramic catalytic filter is less than 5 mg/m^3,and that of NOx at the outlet is less than 50 mg/m^3.

关 键 词：脱硝 除尘 陶瓷催化滤管 超低排放 一体化脱除 干法 

分 类 号：X773[环境科学与工程—环境工程]