Study on ammonium bicarbonate solid pyrolysis system for ammonia production in coal-fired power plants

蒙毅; 刘逸芸; 宋士林; 刘玺璞

doi:10.19666/j.rlfd.202502010

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Study on ammonium bicarbonate solid pyrolysis system for ammonia production in coal-fired power plants

Thermal Power Generation Vol. 54, Issue 11, Pages: 76-82(2025)

更新时间：2026-08-11

- Study on ammonium bicarbonate solid pyrolysis system for ammonia production in coal-fired power plants
- 作者机构：
  
  西安西热锅炉环保工程有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202502010
  CLC： TQ113.2;X773
- Published：2025
- 稿件说明：
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[1]蒙毅,刘逸芸,宋士林,等.燃煤电厂碳酸氢铵固体热解制氨系统研究[J],2025,54(11):76-82.
[1]蒙毅,刘逸芸,宋士林,等.燃煤电厂碳酸氢铵固体热解制氨系统研究[J],2025,54(11):76-82. DOI： 10.19666/j.rlfd.202502010.

DOI：10.19666/j.rlfd.202502010.

摘要

碳酸氢铵固体是一种潜在的脱硝还原剂，可以通过固体直接热解高效制取氨气。通过数值计算模拟了碳酸氢铵固体热解反应，并设计了适用于燃煤电厂的热解制氨系统，分析了碳酸氢铵热解制氨过程的经济性。模拟结果显示，碳酸氢铵热解过程适宜在常压下进行，反应温度在100℃以上时热解转化率迅速提高。对660 MW机组的碳酸氢铵热解系统进行了设计计算，采用外热式热解反应器以实现余热利用和固体稳定进料，利用燃煤电厂蒸汽或烟气作为热解热源，在110℃时碳酸氢铵进料在10 min内可以达到95%转化率。相比尿素水解制氨工艺，碳酸氢铵固体热解工艺的设备成本、占地面积和运行费用均显著降低，具有良好的推广应用前景。

Abstract

Ammonium bicarbonate is a potential denitrification reducing agent that can efficiently produce ammonia gas through direct solid pyrolysis. The pyrolysis reaction of ammonium bicarbonate solid is numerically simulated

a pyrolysis ammonia production system suitable for coal-fired power plants is designed

and the economic feasibility of the ammonium bicarbonate pyrolysis ammonia production process is analyzed. The simulation results show that

the pyrolysis process of ammonium bicarbonate favors the atmosphere pressure and the conversion rate of pyrolysis rapidly increases when the reaction temperature is above 110 ℃. The pyrolysis system of ammonium bicarbonate for a 660 MW unit has been designed and calculated. An external heating pyrolysis reactor is adopted to realize the utilization of waste heat and stable solid feeding. Steam or flue gas from the coal-fired power plant is used as the heat source for pyrolysis. At 110 ℃

a conversion rate of 95% can be reached within 10 minutes for ammonium bicarbonate feed. Compared with the urea hydrolysis process

the equipment cost

land occupation and operating cost of the ammonium bicarbonate solid pyrolysis process all significantly reduce

showing good prospects for promotion and application.

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references

ASADZADEH S M, ANDERSEN N A. Model-based fault diagnosis of selective catalytic reduction for a smart cogeneration plant running on fast pyrolysis bio-oil[J].IFAC-PapersOnLine, 2022, 55(6):427-432.

WIBERG E, HOLLEMAN A F, WIBERG N. Inorganic chemistry[M]. New York:Academic Press, 2001:1.

喻小伟,匡萃杰.尿素热解制氨工艺在1 000 MW燃煤电厂的应用与优化[J].发电技术, 2022, 43(2):367-372.YU Xiaowei, KUANG Cuijie. Application and optimization of urea pyrolysis technology in 1 000 MW coal-fired power plant[J]. Power Generation Technology,2022, 43(2):367-372.

BEERBAUM D, BERNHARDT D, BECKMANN M.Modeling of the SNCR process:based on a semianalytical spray model approach[J]. Thermal Science and Engineering Progress, 2023, 43:102008.

XIA C, ZHU Y Q, LIU D T, et al. Newly developed detailed urea decomposition mechanism by marine engine urea-SCR system crystallization test and DFT calculations[J]. Chemical Engineering Journal, 2023, 470:144176.

ZHANG Y Y, WEI L, GAO X, et al. Performance analysis of a waste-to-energy system integrated with the steamwater cycle and urea hydrolysis process of a coal-fired power unit[J]. Applied Sciences, 2022, 12(2):866.

ZHU Z P, SONG X Z, SONG Y W, et al. Corrosion behavior of 15CrMo steel for water-wall tubes in thermal power plants in the presence of urea and its byproducts[J].2021, 39(1):43-53.

BRONDI M, EISA M, BORTOLETTO-SANTOS R, et al.Recovering, stabilizing, and reusing nitrogen and carbon from nutrient-containing liquid waste as ammonium carbonate fertilizer[J]. Agriculture, 2023, 13(4):909.

KOROBOV A. Experiment vs. theory in solid-state reaction kinetics:a discrete model for NH4HCO3 thermal decomposition[J]. Journal of Thermal Analysis and Calorimetry, 2003, 74(1):211-225.

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.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.

马军彦.固态铵SCR技术铵盐分解及NOx低温还原特性研究[D].长春:吉林大学, 2016:1.MA Junyan. Study on ammonium salt decomposition and low temperature NOx reduction characteristic of solid SCR technology[D]. Changchun:Jilin University, 2016:1.

李文艳,范永林,张强.碳酸氢铵用于SCR脱硝的试验研究[J].热力发电, 2010, 39(5):27-30.LI Wenyan, FAN Yonglin, ZHANG Qiang. Test study on using ammonium hydrogen carbonate for SCR denitrification[J]. Thermal Power Generation, 2010,39(5):27-30.

刘逸芸,牛国平,蒙毅,等.一种碳酸氢铵溶液循环分解制氨系统及方法. ZL202211128740.4[P]. 2022-09-16[2025-02-05].LIU Yiyun, NIU Guoping, MENG Yi, et al. A system and method for ammonia production by recycling and decomposing ammonium bicarbonate solution:ZL202211128740.4[P]. 2022-09-16[2025-02-05].

张强.一种碳酸氢铵热解制氨系统:ZL201020522779.0[P]. 2011-04-13[2025-02-05].ZHANG Qiang. A system for ammonium bicarbonate pyrolysis to produce ammonia:ZL201020522779.0[P].2011-04-13[2025-02-05].

NOWAK P, SKRZYPEK J. The kinetics of chemical decomposition of ammonium bicarbonate and carbonate in aqueous solutions[J]. Chemical Engineering Science,1989, 44(10):2375.

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