燃气轮机低NOx燃烧

1、燃气轮机低NOx燃烧背景NOx生成及控制措施Web of Science数据库检索报告目录目录20 世纪 80 年代以来，新的污染控制技术出现20世纪 70 年代早期开始注意到燃气轮机在燃烧过程中产生大量的NOx1950 年左右，传统燃气轮机燃烧室的基本特征大多数都已经出现二战时期出现了最早的燃气轮机燃烧室1 1 背景背景2 NOx2 NOx生成及控制措施2.1 NOx2.1 NOx生成及分类来源燃烧所用空气中氮的氧化燃料中所含的氮化合物产生生成类型热力型 NOx（T-NOx）燃料型 NOx(F-NOx)快速型NOx（P-NOx）2.2 NOx2.2 NOx对人类的影响方法123催化剂干式低N

2、Ox燃烧室技术向燃烧室内喷入水或水蒸气2.32.3降低降低 NOx NOx排放的措施排放的措施注蒸汽的燃气轮机1.向燃烧室中喷射一定数量的水或水蒸汽01020203功率提高。燃烧不稳定。NOx排放量减少。CO 排放量增加。0104安全性降低。投资增大。 分级燃烧空气分级 燃料分级2.干式低NOx燃烧室技术干式低 NOx燃烧(DLN)技术，即通过合理控制燃烧火焰温度而实现燃气以低氮氧化物(NOx)含量排放的燃烧技术。 一级燃烧模式 贫-贫燃烧模式 二级燃烧模式 预混燃烧模式2.42.4两种降低两种降低 NOx NOx排放量的方法比较排放量的方法比较01稳定性02安全性03经济性04降低NOx排放

3、量的效果3 3 Web of ScienceWeb of Science数据库检索报告3.13.1 检索结果及分析检索结果及分析主题：“gas turbine*”andlow* nox combustion 每年发表的论文每年发表的论文数数 每年的引文数每年的引文数被引频次总计被引频次总计: 112每项平均引用次数每项平均引用次数: 4.31 h-index: 5 3.2 3.2 TopTop文献（前1010篇）3.3 3.3 Top文献翻译A study of combustion characteristics of gasified coal fuel The development o

4、f integrated, coal-gasification combined cycle (IGCC) systems provides cost-effective and environmentally sound options for meeting future coal-utilizing power generation needs in the world. The Japanese government and the Electric Power Industries in Japan promoted research and development of art I

5、GCC system. We have being working on developing a low-NOx combustion technology used in gas turbine combustors for IGCC. Each gaseous fuel produced from some raw materials contained CO and H-2 as the main combustible components, and a small amount of CH,. Compositions and calorific values of gasifie

6、d coal fuels varied widely depending on raw materials and gasifier types. Gaseous fuel, produced in various gasifiers, has a calorificvalue of 4-13 MJ/m(3), which is about one-tenth to one-third that of natural gas. The flame temperatures of fuels increase as the fuel calorific value rises. When the

7、 fuel calorific value rises 8 MJ/m(3) or higher; the flame temperature is higher than that of natural gas, and so NOx production from nitrogen fixation is expected to increase significantly. Also, some gasified coal fuels contain fuel nitrogen, such as ammonia, if the hot/dry type gas clearing syste

8、m is employed. These factors affect the combustion characteristics of the gasified coal fuel. lit this paper, we clarified the influence of gasified coal fuel properties on NOx arzd CO emissions through experiments rising a small diffusion burner and through numerical analysis based on reaction kine

9、tics. The main results were as follows: 1 NH3 conversion to NOx increases with increasing CH4 concentration in gaseous fuel. 2 If gaseous fuel contains CH4, there will be some specific equivalence ratio in the primary combustion zone for the minimum NH3 conversion to NOx in the two-staged combustion

10、. 3 Its specific equivalence ratio in the primary combustion zone increases with decreasing CH4 concentration in gaseous fuel. 4 If the fuel contains a small percent of CH4, there is no influence of the CO/H-2 molar ratio in the fuel on the conversion rate of NH3 to NOx while there is an influence i

11、n the case where fuel contains no CH4. The conversion rate increases with rises in the CO/H-2 molar ratio. 5 As the pressure increases, the conversion rate of NH3 to NOx slightly decreases and the CO emission declines significantly.煤气燃料燃烧特性的研究整体煤气化联合循环（IGCC）系统的发展为满足世界上未来煤炭利用发电的需求提供了具有成本效益和无害环境的技术。日本

12、政府和日本的工业推动研究和发展IGCC系统。我们正在致力于开发整体煤气化联合循环燃气轮机的燃烧室使用低NOx燃烧技术。每个气体燃料生产从原材料中CO和氢为主要可燃成分,和少量的CH。气化煤燃料的成分和发热值相差很大取决于原材料和气化炉类型。气体燃料,产生的各种气体发生器,热值的MJ / m 4 - 13(3),这是十分之一到三分之一的天然气。燃料火焰温度的增加随着燃料热值的上升。当燃料热值上升8 MJ / m(3)或更高;火焰温度高于天然气,因此氮氧化物产量固氮预计将显著增加。此外,一些气化煤燃料包含燃料氮、氨等,如果热/干式气体采用清算系统。这些因素影响煤气燃料的燃烧特性。点燃这篇文章中,我们澄清了煤气燃料性能的影响对NOx arzd CO排放通过实验不断上升的一个小扩散燃烧器,通过基于反应动力学的数值分析。主要结果如下:1氨转化氮氧化物气体燃料随着甲烷浓度的