Comparison of ammonia preparing scheme for deNOx system of thermal power plant

Abstract

Abstract: In thermal power plants, there are four types of ammonia supply sources for SCR deNOx devices, which are the liquid ammonia, the aqueous ammonia, the pyrolyzed urea and the hydrolyzed urea. According to technical and economic comparative analyses, it was confirmed that in the investment cost, the operating cost, the operation and management safety and other respects, the pyrolyzed urea and the liquid ammonia have advantages and disadvantages respectively, and they all can be used as appropriate ammonia supply source for large unit.

Key words: selective catalytic reduction (SCR) method, deNOx, ammonia, preparing scheme, comparative analysis

MA Qianli. Comparison of ammonia preparing scheme for deNOx system of thermal power plant[J]. Huadian Technology, 2011, 33(12): 58-59.

[1]	HAN Shiwang, ZHAO Ying, ZHANG Xingyu, XUAN Chengbo, ZHAO Tiantian, HOU Xukai, LIU Qianqian. Researches on hydrogen storage peak-shaving technology for new power systems to achieve carbon neutrality [J]. Integrated Intelligent Energy, 2022, 44(9): 20-26.
[2]	SHEN Yaguang，GUO Huanhuan，WEI Pingbo，SHEN Hanjie. Technical characteristics and application of a new ammonia desulfurization ultra-low emission technology #br# [J]. Huadian Technology, 2020, 42(3): 52-58.
[3]	GAO Jun, WANG Xun. Discussion on the technical route of energy consumption reduction in clean gas-fired heating [J]. Huadian Technology, 2020, 42(11): 83-90.
[4]	FAN Chuigang, LI Songgeng, . Structure and function of important C/O intermediates in semi‐coke DeNOx systems [J]. Huadian Technology, 2020, 42(10): 28-35.
[5]	GAO Zhenglai1，ZHOU Guoshan1，SHEN Dong1，PAN Zhengqi1，ZHOU Wei1，XIN Xiaoying2，LI Yan2. Study on synergistic removal effect on multiple pollutants made by WESP and ammonia desulfurization system [J]. Huadian Technology, 2020, 42(1): 25-28.
[6]	MI Dakui，ZHANG Chuangen. Existing problems and optimization solutions of denitration ammonia escape analyzer measurement technology  [J]. Huadian Technology, 2019, 41(8): 57-60.
[7]	YOU Songlin1,LUO Honghui1, WANG Zhen1, YAO Yongqi1,LIU Xiuru2,SUN Yiqing2,CHEN Feng2. Study on ammonia escape rate control technology of SCR denitrification system in coalfired power plant [J]. Huadian Technology, 2019, 41(2): 55-59.
[8]	LIN Qing. Study on the distribution and optimization control of SCR denitration system flue gas flow field [J]. Huadian Technology, 2019, 41(12): 58-62.
[9]	HAO Zheng，HU Xiaofu，WANG Yun，WANG Yang，SHEN Xianming，LI Wei，WANG Hua. Research on precise ammonia injection retrofit for SCR denitration systems in thermal powers [J]. Huadian Technology, 2019, 41(10): 8-11.
[10]	HU Xiaofu，WANG Yang，WANG Yun，HAO Zheng，WANG Kailiang，LI Wei，WANG Hua，ZHANG Nanji. Operation optimization an SCR denitration system in a coalfired power plant [J]. Huadian Technology, 2019, 41(10): 12-15.
[11]	FANG Mingcheng, LIU Yuqiang, WANG Runming, ZHOU Ming. Research on ammonia spraying optimization in SCR denitrification system [J]. Huadian Technology, 2018, 40(9): 61-65.
[12]	ZHANG Hui. Analysis of white smoke after operation of SNCR in waste incineration power plant [J]. Huadian Technology, 2018, 40(6): 71-72.
[13]	LIU Xiaomin1,LEI Siyuan2, MA Yunlong2, CHEN Weiyong1, ZHENG Huayong1, KONG Fanhai2, WANG Lele2. Study on optimization of SCR ammonia injection system of a 300MW unit [J]. Huadian Technology, 2018, 40(4): 59-62.
[14]	LI Haihao, LI Huijun, GAO Minglang. Technical practice of denitration system for 600MW coalfired unit before gridconnection [J]. Huadian Technology, 2018, 40(10): 63-64.
[15]	MA Xianqi, XU Wujun, PAN Ronghui. Addition dosage calculation of secondloop system for AP1000 nuclear power unit [J]. Huadian Technology, 2017, 39(8): 21-23.

Comparison of ammonia preparing scheme for deNOx system of thermal power plant

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments