EN液体添加剂对流化床SNCR低温脱硝及N2O排放特性的影响
Influence of Liquid Additives on Low Temperature SNCR Denitrification and Emission Characteristics of N2O in Fluidized Beds
- 动力工程学报 2025年45卷第6期 页码：938-943
- 作者机构：
1. 国家电投集团协鑫滨海发电有限公司,江苏,盐城,224500
2. 江苏方天电力技术有限公司,江苏,南京,211100
3. 东南大学 能源与环境学院,江苏,南京,210096
- 作者简介：
[ "畅巨东(1976—),男,山西太原人,高级工程师,本科,研究方向为大气污染物控制" ]
- 基金信息：国家重点研发计划资助项目(2022YFB4100301)
DOI：10.19805/j.cnki.jcspe.2025.240209
中图分类号：-
网络出版：2025-06-16，
纸质出版：2025
- 稿件说明：
移动端阅览
畅巨东,方威,黄治军,刘猛,韦红旗. 液体添加剂对流化床SNCR低温脱硝及N2O排放特性的影响动力工程学报, 2025, 45(6): 938-943 https://doi.
org/10.19805/j.cnki.jcspe.2025.240209
畅巨东,方威,黄治军,刘猛,韦红旗. 液体添加剂对流化床SNCR低温脱硝及N2O排放特性的影响动力工程学报, 2025, 45(6): 938-943 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240209.
org/10.19805/j.cnki.jcspe.2025.240209 DOI：
摘要
在50 kW流化床燃煤试验装置上开展两种液态添加剂在不同温度及添加量下对SNCR低温脱硝效率及N
2
O排放特性的影响研究。结果表明:在氨与氮氧化物摩尔比为1.5、乙醇与氨摩尔比
β
为0.8、温度为700 ℃时SNCR脱硝效率达到35.6%
且随着乙醇添加量的增加
N
2
O排放量逐渐增高
最高达到35×10
-6
;在690~850 ℃范围内
当苯酚与氨摩尔比
α
控制在1.0时
苯酚对SNCR脱硝效率的促进作用最佳
脱硝效率为38%±4%;苯酚的添加同样会导致N
2
O排放量缓慢增加。
Abstract
An investigation was conducted on a 50 kW fluidized bed coal combustion experimental setup to study the effects of two liquid additives on low-temperature SNCR denitrification efficiency and N
2
O emission characteristics at different temperatures and additive amounts. Results show that the SNCR denitrification efficiency reaches 35.6% at ammonia to nitrogen oxides molar ratio of 1.5
ethanol to ammonia molar ratio
β
of 0.8
and temperature of 700 ℃. Additionally
as the amount of ethanol added increases
the N
2
O emissions gradually rise
reaching a maximum of 35×10
-6
. Within the temperature range of 690 to 850 ℃
when the phenol to ammonia molar ratio
α
is controlled at 1.0
phenol exhibits
the best promotional effect on SNCR denitrification efficiency
which is 38%±4%. The addition of phenol also leads to gradual increase in N
2
O emissions.
关键词
Keywords
references
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