Influence of Liquid Additives on Low Temperature SNCR Denitrification and Emission Characteristics of N<sub>2</sub>O in Fluidized Beds

CHANG Judong; FANG Wei; HUANG Zhijun; LIU Meng; WEI Hongqi

doi:10.19805/j.cnki.jcspe.2025.240209

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Influence of Liquid Additives on Low Temperature SNCR Denitrification and Emission Characteristics of N₂O in Fluidized Beds

更新时间：2026-10-10

- Influence of Liquid Additives on Low Temperature SNCR Denitrification and Emission Characteristics of N₂O in Fluidized Beds
- Chinese Journal of Power Engineering Vol. 45, Issue 6, Pages: 938-943(2025)
- 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：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240209
  CLC：
- Online First：16 June 2025，
  
  Published：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. DOI: 10.19805/j.cnki.jcspe.2025.240209.

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. DOI：

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

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

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

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

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

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

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

of 0.8

and temperature of 700 ℃. Additionally

as the amount of ethanol added increases

the N

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

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

O emissions.

关键词

Keywords

references

张洪福, 高明明, 于浩洋, 等. 300 MW深度调峰循环流化床机组负荷响应特性研究[J]. 动力工程学报, 2023, 43(9): 1116-1122. ZHANG Hongfu, GAO Mingming, YU Haoyang, et al. Study on load response characteristics of a 300 MW circulating fluidized bed unit with deep peak regulation[J]. Journal of Chinese Society of Power Engineering, 2023, 43(9): 1116-1122.

白昊, 张健, 张忠孝, 等. 330 MW电站煤粉锅炉高温主燃区喷氨脱硝的试验研究[J]. 动力工程学报, 2022, 42(6): 537-543, 588. BAI Hao, ZHANG Jian, ZHANG Zhongxiao, et al. Experimental study on ammonia injection denitrification in high-temperature primary combustion zone of a 330 MW pulverized coal-fired utility boiler[J]. Journal of Chinese Society of Power Engineering, 2022, 42(6): 537-543, 588.

陆续, 吴庆龙, 张向宇, 等. 高温还原区喷氨脱硝试验研究[J]. 动力工程学报, 2020, 40(6): 481-485, 501. LU Xu, WU Qinglong, ZHANG Xiangyu, et al. Experimental research on denitrification process by reagent injection in the high-temperature reduction zone[J]. Journal of Chinese Society of Power Engineering, 2020, 40(6): 481-485, 501.

张明星, 罗晨, 马素霞, 等. 尿素协同添加剂的SNCR低温脱硝实验研究[J]. 煤炭技术, 2022, 41(7): 228-231. ZHANG Mingxing, LUO Chen, MA Suxia, et al. Experimental study on SNCR denitration at low temperature with urea synergistic additives[J]. Coal Technology, 2022, 41(7): 228-231.

舒淘, 苏胜, 贾萌川, 等. CO对NH 3 还原NO过程的影响与机理研究[J ] . 动力工程学报, 2023, 43(10): 1343-1351, 1362. SHU Tao, SU Sheng, JIA Mengchuan, et al. Study on the characteristics and mechanism of the effect of CO on the reduction of NO by NH 3 [J ] . Journal of Chinese Society of Power Engineering, 2023, 43(10): 1343-1351, 1362.

JAVED M T, NIMMO W, GIBBS B M. Experimental and modeling study of the effect of CO and H 2 on the urea DeNO x process in a 150 kW laboratory reactor[J ] . Chemosphere, 2008, 70(6): 1059-1067.

GASNOT L, DAO D Q, PAUWELS J F. Experimental and kinetic study of the effect of additives on the ammonia based SNCR process in low temperature conditions[J]. Energy & Fuels, 2012, 26(5): 2837-2849.

魏小兵, 罗晨, 武广剑, 等. 基于低氮燃烧的循环流化床低温增效脱硝实验研究[J]. 热能动力工程, 2023, 38(11): 84-89. WEI Xiaobing, LUO Chen, WU Guangjian, et al. Experimental study on low temperature synergistic denitration of circulating fluidized bed based on low nitrogen combustion[J]. Journal of Engineering for Thermal Energy and Power, 2023, 38(11): 84-89.

姜金东, 林晨, 张曜, 等. 工艺操作参数对烟气SNCR脱硝性能影响的数值模拟[J]. 中国电机工程学报, 2018, 38(2): 383-389. JIANG Jindong, LIN Chen, ZHANG Yao, et al. Numerical simulation of effect of process operation parameters on flue gas denitrification performance of SNCR[J]. Proceedings of the CSEE, 2018, 38(2): 383-389.

林晨, 张曜, 于娟, 等. 循环流化床喷射混合还原剂的脱硝反应试验研究[J]. 洁净煤技术, 2020, 26(3): 114-119. LIN Chen, ZHANG Yao, YU Juan, et al. Experimental study on denitration reaction of injecting mixed reductant in circulating fluidized bed[J]. Clean Coal Technology, 2020, 26(3): 114-119.

余旻, 杨卫娟, 陈镇超, 等. H 2 O 2 作添加剂对SNCR脱硝工艺的影响[J ] . 能源工程, 2013(3): 45-49. YU Min, YANG Weijuan, CHEN Zhenchao, et al. Influence of H 2 O 2 additive on SNCR process[J ] . Energy Engineering, 2013(3): 45-49.

JAVED M T, NIMMO W, MAHMOOD A, et al. Effect of oxygenated liquid additives on the urea based SNCR process[J]. Journal of Environmental Management, 2009, 90(11): 3429-3435.

罗晨, 马素霞, 崔志刚, 等. 基于碳酸氢铵的SNCR低温脱硝实验研究[J]. 热能动力工程, 2022, 37(8): 128-134, 142. LUO Chen, MA Suxia, CUI Zhigang, et al. Experimental study on SNCR denitration at low temperature based on ammonium bicarbonate[J]. Journal of Engineering for Thermal Energy and Power, 2022, 37(8): 128-134, 142.

晁思聪, 魏宇辰, 柳小楼, 等. Na + 、K + 、Cl - 对水泥窑SNCR反应中氮氧化物转化过程的影响[J ] . 中国水泥, 2 021(6): 75-78. CHAO Sicong, WEI Yuchen, LIU Xiaolou, et al. Effect of Na + , K + and Cl - on Nitrogen oxide conversion process in cement kiln SNCR reaction[J ] . China Cement, 2021(6): 75-78.

孙桐, 卢平, 蔡杰, 等. Na/K添加剂对SNCR脱硝及NO还原机制的影响[J]. 化工学报, 2017, 68(3): 1178-1184. SUN Tong, LU Ping, CAI Jie, et al. Effects of Na/K additives on NO reduction and its promotion mechanism in SNCR process[J]. CIESC Journal, 2017, 68(3): 1178-1184.

卢平, 胡昔鸣, 黄震. 醋酸钠工业废盐对SNCR脱硝性能的影响[J]. 能源研究与利用, 2021(1): 6-10. LU Ping, HU Ximing, HUANG Zhen. Effect of industrial waste sodium acetate on denitrification performance of SNCR[J]. Energy Research & Utilization, 2021(1): 6-10.

陈金宝, 罗俊伟, 杨文海, 等. 添加生物油对垃圾焚烧烟气选择性非催化还原脱硝的强化作用及其机理[J]. 环境工程学报, 2021, 15(11): 3589-3597. CHEN Jinbao, LUO Junwei, YANG Wenhai, et al. Characteristics and mechanism of bio-oil enhanced waste incineration SNCR denitrification[J]. Chinese Journal of Environmental Engineering, 2021, 15(11): 3589-3597.

赵硕, 周子博, 由长福. 液态添加剂对CFB锅炉SNCR脱硝的影响[J]. 煤炭学报, 2016, 41(10): 2479-2483. ZHAO Shuo, ZHOU Zibo, YOU Changfu. Effect of liquid additives on SNCR denitrification process in CFB boiler[J]. Journal of China Coal Society, 2016, 41(10): 2479-2483.

张林. 添加剂提高炉内SNCR中温脱硝效率的研究[J ] . 化工管理, 2021(11): 165-166. ZHANG Lin. Gas additive to improve NO x removal efficiency of SNCR at mid-temperature in furnace[J ] . Chemical Enterprise Management, 2021(11): 165-166.

袁建伟, 冯波, 蔡学军, 等. 流化床煤燃烧过程中N 2 O的生成与分解机理的研究[J ] . 中国电机工程学报, 1994, 14(4): 1-7. YUAN Jianwei, FENG Bo, CAI Xuejun, et al. Study on the mechanism of N 2 O Formation and decomposition of coal combustion in fluidized bed[J ] . Proceedings of the CSEE, 1994, 14(4): 1-7.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Ash Behavior and Slagging Characteristics in Co-firing of Arundo Donax with Typical Coals

Research on Trading Decision of Wind-Photovoltaic-Gas Combined System Participating in Day-ahead and Real-time Markets Considering Wind and Photovoltaic Uncertainty

Double-layer Coordination Economic and Real-time Dispatching Strategy for Large-scale Energy Base

Modeling of Coal-Ammonia Co-firing Boiler and Multi-modal Validation Optimization Using Affinity Propagation-Least Squares Support Vector Machine

Event-triggered Control of Wind Turbine System Based on T-S Fuzzy Model

Related Author

JI Heng-song1

WANG Qian1

JIANG Xiu-min2

WANG Shuang1

YIN Weijie

YANG Xuesong

WANG Qi

SONG Xiaojiao

Related Institution

School of Energy and Power Engineering,Jiangsu University,Zhengjiang

Institute of Thermal Engineering,Shanghai Jiaotong University

Department of Energy and Power Engineering, Shanxi Institute of Energy

School of Energy Science and Engineering, Harbin Institute of Technology

School of Energy, Power and Mechanical Engineering, North China Electric Power University

AI问答

⁰

Influence of Liquid Additives on Low Temperature SNCR Denitrification and Emission Characteristics of N2O in Fluidized Beds

DOI：10.19805/j.cnki.jcspe.2025.240209

摘要

Abstract

关键词

Keywords

references

Influence of Liquid Additives on Low Temperature SNCR Denitrification and Emission Characteristics of N₂O in Fluidized Beds