氨-煤混燃模式下低温受热面腐蚀行为研究

韩阳; 李佳奇; 刘平; 孔梦迪; 刘延杰; 王毅斌; 谭厚章

doi:10.19666/j.rlfd.202504064

English

您当前的位置：

首页 >

文章列表页 >

氨-煤混燃模式下低温受热面腐蚀行为研究

热力发电 2026年55卷第3期页码：150-157

新型发电技术 | 更新时间：2026-08-07

- 氨-煤混燃模式下低温受热面腐蚀行为研究
- 氨-煤混燃模式下低温受热面腐蚀行为研究
- 作者机构：
  
  1. 中国神华能源股份有限公司广东分公司
  2. 国家能源投资集团有限责任公司
  3. 烟台龙源电力技术股份有限公司
  4. 西安交通大学热流科学与工程教育部重点实验室
- 作者简介：
- 基金信息：
  
  国家自然科学基金（51906198）~~
- DOI：10.19666/j.rlfd.202504064
  中图分类号： TM621
- 纸质出版：2026
- 稿件说明：
移动端阅览
[1]韩阳,李佳奇,刘平,等.氨-煤混燃模式下低温受热面腐蚀行为研究[J].热力发电,2026,55(03):150-157.
[1]韩阳,李佳奇,刘平,等.氨-煤混燃模式下低温受热面腐蚀行为研究[J].热力发电,2026,55(03):150-157. DOI： 10.19666/j.rlfd.202504064.

DOI：10.19666/j.rlfd.202504064.

摘要

氨-煤混燃发电模式能够显著降低机组的碳排放水平，但当掺氨量过高、混氨/纯氨燃烧器布置不当以及氨煤混燃效果不佳时，逃逸的氨气在低温下会同SO

/SO

发生反应，增加低温受热面发生腐蚀和积灰堵塞的风险。因此，开展了250℃和150℃下NH

-SO

-O

-H_2O(g)-N

氧化性气氛中20号钢和ND钢试样的168 h连续腐蚀实验，主要探究温度、NH

体积分数和飞灰涂覆对金属试样腐蚀速率的影响，并对腐蚀后金属试样和灰样进行了微观形貌和矿化物相分析。结果表明：氨气体积分数从0.002 5%增至0.005 0%

ND钢试样的平均腐蚀速率下降了58%；涂灰20号钢则是在NH

体积分数为0.005%的气氛下腐蚀速率明显加快，其平均腐蚀速率达到0.003 6 mg/(cm

.h)；升高温度显著加快了腐蚀速率，涂灰ND钢在250℃下的平均腐蚀速率最快，达到0.011 2 mg/(cm

.h);250℃，ND钢涂灰灰样中检测出新生成的CaSO

，其可能促进了灰颗粒之间的黏连；在150℃下涂灰20号钢腐蚀后灰样出现了严重的板结团聚现象，其主要是由于新生成的NH_4HSO

和(NH

)_2SO

促进了灰颗粒间的团聚效应；未来燃煤机组大比例掺烧氨气后，尤其是燃用中、高硫煤时，需要特别关注飞灰特性变化和低温受热面发生积灰腐蚀风险。

Abstract

Ammonia-coal co-firing mode for power generation can significantly reduce the carbon emission level of the unit. But when the ammonia blending ratio is too high

the ammonia blending/pure ammonia burner is not properly arranged

and the ammonia-coal co-combustion effect is not good

the escaped ammonia will react with SO

/SO

at low temperature

increasing the risk of corrosion and fouling on low temperature heating surfaces. To solve this problem

168

-hour continuous corrosion experiments of No.20 and ND steel specimens in an oxidizing atmosphere of NH

-SO

-O

-CO

-H_2O_((g))-N

at 250 ℃ and 150 ℃ were carried out. The effects of temperature

volume fraction and fly ash coating on the corrosion rate of metal specimens were mainly investigated

and the corroded metal specimens and ash samples were analyzed in terms of micro-morphology and mineral phase. The experimental results showed that the average corrosion rate of ND steel specimens decreased by 58% when the volume fraction of ammonia was increased from 0.002 5% to 0.005 0%. The corrosion rate of No.20 steel coated with fly ash was significantly accelerated in the atmosphere of NH

with volume fraction of 0.005%

and the average corrosion rate reached 0.003 6 mg/(cm

·h). Elevating temperature significantly accelerated the corrosion rate. ND steel coated with fly ash showed the fastest average corrosion rate at 250 ℃(0.011 2 mg/(cm

·h)). At 250 ℃

CaSO

was newly generated and it was detected in the ND steel-coated ash samples

which may have promoted adhesion among ash particles. After the corrosion of No.20 steel coated with fly ash at 150 ℃

the ash sample had a serious agglomeration effect

which is mainly due to the newly generated NH

HSO

and(NH

)_2SO

promoting the agglomeration effect among ash particles. In the future

when a large proportion of ammonia is mixed with coalfired units

especially when medium and high sulfur coal is used

special attention should be paid to the change of fly ash characteristics and the risk of fouling and corrosion on low temperature heating surfaces.

关键词

Keywords

references

WIJAYANTA A T, ODA T, PURNOMO C W, et al. Liquid hydrogen, methylcyclohexane, and ammonia as potential hydrogen storage:comparison review[J]. International Journal of Hydrogen Energy, 2019, 44(29):15026-15044.

赖诗妮,江丽霞,李军,等.含碳掺氨燃料的研究进展[J].化工进展, 2023, 42(9):4603-4615.LAI Shini, JIANG Lixia, LI Jun, et al. Research progress of ammonia blended fossil fuel[J]. Chemical Industry and Engineering Progress, 2023, 42(9):4603-4615.

《煤电低碳化改造建设行动方案（2024—2027年）》发布[J].中国氯碱, 2024(8):63-64.Action Plan for the Transformation and Construction of Decarbonized Coal Power(2024—2027)issued[J]. China Chlor-Alkali, 2024(8):63-64.

王颖.基于CFD数值模拟的135 MW四角切圆煤粉炉氨气混燃研究[D].杭州:浙江大学, 2024:1.WANG Ying. Research on ammonia-coal co-firing of a135 MW tangentially coal-fired utility boiler based on CFD numerical simulation[D]. Hangzhou:Zhejiang University, 2024:1.

WANG Q, HU Z, SHAO W, et al. The present situation,challenges, and prospects of the application of ammoniacoal co-firing technology in power plant boilers[J].Journal of the Energy Institute, 2024, 113:101531.

阮仁晖,许景元,崔保崇.燃煤发电锅炉掺氨燃烧技术研究进展及应用分析[J].能源科技, 2024, 22(4):43-47.RUAN Renhui, XU Jingyuan, CUI Baochong. Research progress and application analysis of ammonia blending combustion technology for coal-fired power generation boilers[J]. Energy Science and Technology, 2024, 22(4):43-47.

ZHANG J, ITO T, ISHII H, et al. Numerical investigation on ammonia co-firing in a pulverized coal combustion facility:Effect of ammonia co-firing ratio[J]. Fuel, 2020,267:117166.

杨钊,黄亚继,黄学希,等. 0.3 MW循环流化床燃煤锅炉SO3脱除试验研究[J].热力发电, 2018, 47(3):62-67.YANG Zhao, HUANG Yaji, HUANG Xuexi, et al.Experimental study on SO3 removal for a 0.3 MW circulating fluidized bed coal-fired boiler[J]. Thermal Power Generation, 2018, 47(3):62-67.

牟春华,王一坤,白文刚,等.超低排放改造后烟气余热利用设备存在问题及防治措施[J].热力发电, 2020,49(4):46-50.MU Chunhua, WANG Yikun, BAI Wengang, et al.Existing problems and control measures of flue gas waste heat utilization equipment after ultra-low emission modification[J]. Thermal Power Generation, 2020, 49(4):46-50.

赵钦新,张知翔,杜文智,等.模拟气氛下硫酸露点的腐蚀试验研究[J].动力工程学报, 2012, 32(5):420-424.ZHAO Qinxin, ZHANG Zhixiang, DU Wenzhi, et al.Experimental study on sulfuric acid dewpoint corrosion in simulated atmospheric conditions[J]. Journal of Chinese Society of Power Engineering, 2012, 32(5):420-424.

VAINIO E, LAUREN T, DEMARTINI N, et al.Understanding low-temperature corrosion in recovery boilers:risk of sulphuric acid dew point corrosion?[J].Journal of Science&Technology for Forest Products and Processes, 2014, 4(6):14-22.

AN T, WEI B, MA R, et al. Study on the high-temperature corrosion mechanism of boiler steel 15CrMoG in ammonia-coal co-firing environment[J]. Fuel, 2024, 378:132892.

徐广伟,马志强,郭靖.锅炉空预器腐蚀堵塞原因分析及防治[J].设备管理与维修, 2024(20):86-88.XU Guangwei, MA Zhiqiang, GUO Jing. Boiler air prepreheater corrosion and clogging reason analysis and prevention and control[J]. Plant Maintenance Engineering, 2024(20):86-88.

何雅玲,汤松臻,王飞龙,等.中低温烟气换热器气侧积灰、磨损及腐蚀的研究[J].科学通报, 2016, 61(17):1858-1876.HE Yaling, TANG Songzhen, WANG Feilong, et al. Gasside fouling, erosion and corrosion of heat exchanger for middle and low temperature flue gas waste heat recovery[J]. Chinese Science Bulletin, 2016, 61(17):1858-1876.

张盛超.改性焊条焊接碳钢焊缝在亚硫酸铵介质中的耐蚀性研究[D].西安:西安理工大学, 2007:1.ZHANG Shengchao. Study on the corrosion resistance of carbon steel welding seam welded by modified welding rod in the ammonium sulfite solution[D]. Xi’an:Xi’an University of Technology, 2007:1.

周培焱.硫酸盐胶凝特性对飞灰板结成垢的影响[D].北京:华北电力大学, 2023:11.ZHOU Peiyan. Effect of sulfate gelation characteristics on fouling of fly ash board[D]. Beijing:North China Electric Power University, 2023:11.

颜鲁,孙奉仲,郑鹏.脱硝伴生硫酸氢铵对空预器壁面粘附机理的实验研究[J].中国电机工程学报, 2020,40(20):6609-6617.YAN Lu, SUN Fengzhong, ZHENG Peng. Experimental study on the adhesion mechanism of ammonium bisulfate associated with denitration to the wall of air preheater[J].Proceedings of the CSEE, 2020, 40(20):6609-6617.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

关联资源

超低排放机组烟气换热器搪瓷换热管应用

0.3 MW循环流化床燃煤锅炉SO3脱除试验研究

基于支持向量机的低温受热面积灰监测研究

一种新的酸露点计算式及其现场实验验证

超低排放改造后烟气余热利用设备存在问题及防治措施