摘 要

Abstract..................................................................2

第1章 绪论...............................................................1

1.1 研究背景与意义......................................................1

1.1.1 研究背景........................................................2

1.1.2 研究意义........................................................2

1.2 研究现状............................................................2

1.2.1 国内研究现状....................................................2

1.2.2 国外研究现状....................................................3

1.3 研究内容与研究目的..................................................4

第2章 实验部分...........................................................5

2.1 实验仪器与设备..................................................... 5

2.2 实验试样............................................................5

2.3 实验方案及方法......................................................6

第3章 结果分析与处理.....................................................8

3.1 反应温度对CO释放的影响分析.........................................8

3.1.1 温度对煤燃烧CO排放的影响.......................................8

3.1.2 温度对RDF燃烧CO排放的影响.....................................12

3.2 反应温度对NO_X释放的影响分析.........................................15

3.2.1 温度对煤燃烧NO_X排放的影响.......................................15

3.2.2 温度对RDF燃烧NO_X排放的影响.....................................18

3.3 氧气浓度对CO释放的影响分析.........................................20

3.3.1 氧气浓度对煤燃烧CO排放的影响...................................20

3.3.2 氧气浓度对RDF燃烧CO排放的影响.................................23

3.4 氧气浓度对NO_X释放的影响分析.........................................24

3.4.1 氧气浓度对煤燃烧NO_X排放的影响...................................24

3.4.2 氧气浓度对RDF燃烧NO_X排放的影响.................................25

3.5 RDF与煤掺混比例对燃料CO排放的影响..................................26

3.6 RDF与煤掺混比例对燃料NO_X排放的影响..................................27

第4章 全文总结............................................................28

参考文献...................................................................29

致谢.......................................................................30

摘 要

NO_X是水泥工业的主要污染物之一，随着环境不断恶化，NO_X的排放标准日趋严格。垃圾衍生燃料（RDF）作为一种清洁能源日益受到各国的极大关注，将其替代一部分煤应用于水泥分解炉中与煤共燃是对其进行转化利用的方式之一，同时适度的RDF与煤粉的混烧方式，可以在一定程度上降低NO_X的排放，但是对于导致排放降低的具体规律和相关影响因素尚不清楚，鉴于此，本文基于分解炉环境，对RDF与煤粉共燃时NO_X的生成与减排问题展开研究，研究内容具有重要的工程实际意义。

本论文采用管式炉、烟气分析仪等实验装置研究了RDF与煤单烧及共燃时NO_X排放特性，分析了NO_X排放的规律，考察了温度、氧气浓度和混烧比例等参数对CO及NO_X排放的影响；并分析了RDF与煤混燃对还原NO_X的协同增效作用。

实验结果表明，RDF单独燃烧时NO_X的生成量小于相同质量的煤单独燃烧时的情况，但当两者混合燃烧时，NO_X的生成量不一定减少反而有可能增加，只有在特定的比例下才能起到减少NO_X排放的效果。

关键词：RDF；煤；混烧；NO_X生成及还原

Abstract

NO_X is one of the main pollutants in cement industry, the NO_X emission standards are more stringent with the environment degradation. Refuse derived fuel(RDF) is a clean and renewable energy, which has received great attention. The co-combustion of RDF and coal in the cement precalciner is considered to be an effective method to utilize RDF, and it can also reduce the NO_X emission. At present the influence factors and reaction mechanism of NO_X reduction of RDF and coal co-combustion remain unclear. This paper focuses on the NO_X generation and reduction of RDF and coal co-combustion based on the actual precalciner condition.furnace, and the study has great significance.

The NO_X emission characteristics of RDF and coal co-combustion was investigated by pipe furnace and flue gas analyzer. The influence of temperature, oxygen concentration and RDF blending rate on the NO_X emission were analyzed in this paper.