文档介绍：南京师范大学
硕士学位论文
湿法烟气脱硫脱硝一体化技术的脱硝添加剂研究
姓名:乔慧萍
申请学位级别:硕士
专业:土木工程;供热供燃气通风及空调工程
指导教师:杨柳
2009-05-14
Abstract
II
Abstract
With the fast development of economy in China,the discharges of coal-fired flue
gas have greatly increased. As the hazards of NOX has been gradually realized, the
reduction of NOX es an urgent task. The issue is one part of the 863 subject
"Wet flue gas desulfurization denitration technology integration and demonstration of
large coal-fired power station" (Project Numbers: 2007AA061803). Basing on the
existing WFGD system, the goal is going to reduce NOX from old power plants, and
finding denitration additives which cost-effective and can be used in industry.
Research of the additives for NOX removal in aqueous solution were reviewed,
analyzing the character and deficiency, and the application future of each additive also
been forecasted. The essay took urea、H2O2、FeSO4、FeII(EDTA)as the research
objects, and each had been carried out in laboratory room and boiler room. H2O2 was
found to have a certain degree of the NO oxidation, combining with urea as main
additive can obtain about 30% denitrification rate. And integrating with the LNB of
old power plant, the discharging of NOX will reach the emissions standard in our
country. The essay also had taken urea as the main additive to analyze from
thermodynamic and ic, and given the consumption rate equation of it .
To sum up, using H2O2、urea and others as main additives to wet
limestone-gypsum FGD process will less affect the operation of the original
system, but to remove over 30% of NOX with low investment. The conclusion
of the issue is that the technology-adding additives to FGD process-not only
remove SO2 and NOX in a system, but also reduce the investment and simplified
the process, it will be applied widly.
Key words: WFGD; denitrification; integration; additive
学位论文独创性声明
本人郑重声明:
1、坚持以“求实、创新”的科学精神从事研究工作。
2、本论文是我个人在导师指导下进行的研究工作和取得的研究
成果