发电厂尿素水解制氨系统中尿素氯化物含量测定方法的研究

曹松彦; 马珍珍; 李杰; 乔越; 杨俊; 陈文中; 韩霜; 马翼超; 王彤; 宋飞

doi:10.19666/j.rlfd.202505088

English

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发电厂尿素水解制氨系统中尿素氯化物含量测定方法的研究

Thermal Power Generation Vol. 55, Issue 3, Pages: 158-164(2026)

更新时间：2026-08-07

- 发电厂尿素水解制氨系统中尿素氯化物含量测定方法的研究
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能重庆珞璜发电有限责任公司
  3. 湛江中粤能源有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202505088
  CLC： TQ113.2;X773
- Published：2026
- 稿件说明：
移动端阅览
[1]曹松彦,马珍珍,李杰,等.发电厂尿素水解制氨系统中尿素氯化物含量测定方法的研究[J].热力发电,2026,55(03):158-164.
[1]曹松彦,马珍珍,李杰,等.发电厂尿素水解制氨系统中尿素氯化物含量测定方法的研究[J].热力发电,2026,55(03):158-164. DOI： 10.19666/j.rlfd.202505088.

DOI：10.19666/j.rlfd.202505088.

摘要

研究建立了一种基于氯化银分光光度法测定尿素中氯化物质量浓度的新方法。该方法具有操作简单、快速等特点，一组尿素样品中的氯化物检测可在20 min内完成。检测范围在0.07～2.00 mg/L，检出限为0.02 mg/L，针对氯离子质量浓度约0.05 mg/L的10%尿素溶液进行18次重复检测。结果显示，相对标准偏差为8.30%，对10%尿素溶液的氯离子检测回收率在86%～110%。该方法准确度、灵敏度均满足火电厂对尿素水解制氨系统用尿素质量的要求，可作为尿素中氯化物含量的测定方法。

Abstract

In-factory testing of chloride ions in urea for urea-to-ammonia hydrolysis systems in power plants is a crucial task

and how to quickly and accurately detect chloride ions content remains an urgent problem to be solved. This study has proposed a new method for determining the mass concentration of chlorides in urea using silver chloride spectrophotometry. This method is simple and fast

capable of detecting the chloride content in a set of urea samples in about 20 minutes

with a detection range of 0.07 mg/L to 2.00 mg/L and a detection limit of 0.02 mg/L. Eighteen repeated tests were conducted on a 10% urea solution with a chloride ion mass concentration of approximately 0.05 mg/L. The results indicated a relative standard deviation of 8.30%. The recovery rate of spiked tests in the 10% urea solution ranged from 86% to 110%. Both the accuracy and sensitivity of this method meet the quality requirements for urea used in the urea-to-ammonia hydrolysis systems in thermal power plants

making it a suitable method for determining chlorides in urea.

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references

徐康.火力发电厂脱硝还原剂液氨改尿素工程工艺方案比选研究[J].化工设计通讯, 2024, 50(8):119-122.XU Kang. Comparative study on the process scheme of denitrification reducing agent liquid ammonia to urea in thermal power plant[J]. Chemical Engineering Design Communications, 2024, 50(8):119-122.

黄纯琳,曾峻鹏,梁文钰.电厂SCR脱硝系统液氨改尿素性能分析[J].中国环保产业, 2023(1):57-62.HUANG Chunlin, ZENG Junpeng, LIANG Wenyu.Performance analysis of liquid ammonia to urea in SCR denitrification system of power plant[J]. China Environmental Protection Industry, 2023(1):57-62.

ZHANG X Y, ZHANG B, LU X, et al. Experimental study on urea hydrolysis to ammonia for gas denitration in a continuous tank reactor[J]. Energy, 2017, 126:677-688.

张香平,孙力,姚平经,等.扩展UNIQUAC方程求NH3-CO2-H2O-urea体系液相活度系数的新方法[J].高校化学工程学报, 2002(4):355-360.ZHANG Xiangping, SUN Li, YAO Pingjing, et al. A new method to extend the UNIQUAC equation to calculate the liquid phase activity coefficient of NH3-CO2-H2O-urea system[J]. Journal of Chemical Engineering of Chinese University, 2002(4):355-360.

周军.尿素水解制氨技术在燃煤电厂中的应用[J].山东化工, 2022, 51(15):136-138.ZHOU Jun. Application of urea hydrolysis technology to ammonia in coal-fired power plants[J]. Shandong Chemical Industry, 2022, 51(15):136-138.

黄俊.尿素热解制氨脱硝技术在电厂运维技术优化[J].化工设计通讯, 2023, 49(11):1-3.HUANG Jun. Optimization of urea pyrolysis to ammonia denitrification technology in power plant operation and maintenance technology[J]. Chemical Engineering Design Communications, 2023, 49(11):1-3.

冯前伟,张彭,李存文,等.典型燃煤机组SCR脱硝还原剂尿素制氨技术经济比较分析[J].锅炉技术,2022, 53(1):76-80.FENG Qianwei, ZHANG Peng, LI Cunwen, et al.Economic comparative analysis of ammonia production technology from urea, denitrification reductant, SCR of typical coal-fired units[J]. Boiler Technology, 2022, 53(1):76-80.

何文.火电厂尿素水解制氨系统改造安全风险防控[J].电力安全技术, 2020, 22(12):45-48.HE Wen. Safety risk prevention and control of urea hydrolysis ammonia production system in thermal power plants[J]. Electric Safety Technology, 2020, 22(12):45-48.

张迪,李奎,但琴,等.尿素水解器的腐蚀原因分析试验及防腐措施[J].电力科技与环保, 2022, 38(5):400-406.ZHANG Di, LI Kui, DAN Qin, et al. Corrosion cause analysis test and anti-corrosion measures of urea hydrolyzer[J]. Electric Power Technology and Environmental Protection, 2022, 38(5):400-406.

SAHU J N, HUSSAIN S, MEIKAP B C. Studies on the hydrolysis of urea for production of ammonia and modeling for flow characterization in presence of stirring in a batch reactor using computational fluid dynamics[J].Korean Journal of Chemical Engineering, 2011, 28(6):1380-1385.

陈文通,樊帅军,陈柳潼,等.尿素水解制氨系统问题分析与对策[J].洁净煤技术, 2023, 29(增刊2):103-108.CHEN Wentong, FAN Shuaijun, CHEN Liutong, et al.Analysis and countermeasures of urea hydrolysis ammonia production system[J]. Clean Coal Technology,2023, 29(Suppl.2):103-108.

赵海南.尿素水解器泄漏导致汽水系统污染事故分析[J].现代工业经济和信息化, 2024, 14(6):270-272.ZHAO Hainan. Analysis of the accident of contamination of the steam-water system due to the leakage of urea hydrolyzer[J]. Modern Industrial Economy and Informatization, 2024, 14(6):270-272.

LU J T, YANG Z, ZHANG B, et al. Corrosion behavior of candidate materials used for urea hydrolysis equipment in coal-fired selective catalytic reduction units[J]. Journal of Materials Engineering and Performance, 2018, 27(7):3290-3296.

ZHENG S Q, LI C Y, QI Y M, et al. Mechanism of(Mg,Al, Ca)-oxide inclusion-induced pitting corrosion in 316L stainless steel exposed to sulphur environments containing chloride ion[J]. Corrosion Science, 2013, 67:20-31.

MEGUID E A, GOUDA V K, MAHMOUD N A. Pitting corrosion behaviour of type SUS904L and SUS316L stainless steels in chloride solutions[J]. Materials Transactions, JIM, 1994, 35(10):699-702.

工业循环冷却水和锅炉用水中氯离子的测定:GB/T15453—2018[S].北京:中国标准出版社, 2018:3.Determination of chloride ions in industrial circulating cooling water and boiler water:GB/T 15453—2018[S].Beijing:Standards Press of China, 2018:3.

火力发电厂水汽中氯离子的硫氰酸汞分光光度测定方法:DL/T 1203—2013[S].北京:中国标准出版社,2013:3.Spectrophotometric method for mercury thiocyanate of chloride ions in water vapor of thermal power plants:DL/T 1203—2013[S]. Beijing:Standards Press of China,2013:3.

工业循环冷却水及锅炉水中氟、氯、磷酸根、亚硝酸根、硝酸根和硫酸根的测定离子色谱法:GB/T14642—2009[S].北京:中国标准出版社, 2013:3.Determination of fluorine, chlorine, phosphate, nitrite,nitrate and sulfate in industrial circulating cooling water and boiler water Ion chromatography:GB/T 14642—2009[S]. Beijing:Standards Press of China, 2013:3.

化学试剂氯化物测定通用方法:GB/T 9729—2007[S].北京:中国标准出版社, 2007:3.Chemical reagents:general method for chloride determination:GB/T 9729—2007[S]. Beijing:Standards Press of China, 2007:3.

镍钴铝三元素复合氢氧化物化学分析方法第4部分:氯离子含量的测定氯化银比浊法:YS/T 1445. 4—2021[S].北京:中国标准出版社, 2021:3.Methods for the chemical analysis of nickel-cobaltaluminum three-element complex hydroxides:Part 4:Determination of chloride ion content Silver chloride turbidimetry:YS/T 1445. 4—2021[S]. Beijing:Standards Press of China, 2021:3.

镍、钴、锰三元素氢氧化物化学分析方法第1部分:氯离子量的测定氯化银比浊法:YS/T 928. 1—2013[S].北京:中国标准出版社, 2013:3.Methods for the chemical analysis of nickel, cobalt, and manganese hydroxides:Part 1:Determination of the amount of chloride ions Silver chloride turbidimetry:YS/T 928. 1—2013[S]. Beijing:Standards Press of China,2013:3.

化学试剂脲(尿素):GB/T 696—2008[S].北京:中国标准出版社, 2008:3.Chemical reagent urea(urea):GB/T 696—2008[S].Beijing:Standards Press of China, 2008:3.

陈文博.基于氯化银悬浮液定量分析氯离子含量的消光光谱方法研究[D].郑州:河南工业大学, 2024:5.CHEN Wenbo. Study on extinction spectroscopy method for quantitative analysis of chloride ion content based on silver chloride suspension[D]. Zhengzhou:Henan University of Technology, 2024:5.

生活饮用水标准检验方法第3部分:水质分析质量控制:GB/T 5750.3—2023[S].北京:中国标准出版社,2023:3.Standard test methods for drinking water:Part 3:Quality control for water quality analysis:GB/T 5750.3—2023[S]. Beijing:Standards Press of China, 2023:3.

中国环境监测总站《环境水质监测质量保证手册》编写组.环境水质监测质量保证手册[M]. 2版.北京:化学工业出版社, 1994:1.Compilation Group of Environmental Water Quality Monitoring Quality Assurance Manual of National Environmental Monitoring Center. Environmental water quality monitoring quality assurance manual[M]. 2nd ed.Beijing:Chemical Industry Press, 1994:1.

胡艳.分光光度法测定生活饮用水中六价铬的方法验证[J].检测认证, 2024(2):215-219.HU Yan. Method validation for spectrophotometric determination of hexavalent chromium in drinking water[J]. Testing and Certification, 2024(2):215-219.

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