Experimental Study on Ammonia Injection Optimization for Denitration System for 1000MW Coal-Fired Unit Article Swipe

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Yudong Huang , L. Li , Ketao Xu , Bo Liu ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.54097/4fa13815

To improve NOx distribution uniformity at the SCR reactor outlet, reduce ammonia escape concentration, and minimize air preheater plugging risk, an ammonia injection optimization experiment was conducted on the SCR denitrification system of a 1000 MW coal-fired unit. After optimization, at 1000 MW load, the relative standard deviation of NOx concentration distribution at the A and B side SCR reactor outlets decreased from 53.8% and 78.9% to 17.5% and 18.0%, respectively, while the average ammonia escape concentration decreased from 1.92 mg/m³ to 1.39 mg/m³. Under different unit loads, ammonia escape remained stable between 1.39-1.61 mg/m³, NOx concentration distribution uniformity at the SCR outlet significantly improved, and ammonia escape concentration decreased to varying degrees, providing reference for the safe, stable, and economical operation of denitrification systems.

Related Topics

Ammonia

Coal

Waste Management

Environmental Science

Mathematics Education

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Ammonia Coal Waste management Unit (ring theory) Environmental science Chemistry Process engineering Nuclear engineering Engineering Organic chemistry Mathematics Mathematics education

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Type: article
Language: en
Landing Page: https://doi.org/10.54097/4fa13815
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DOI: https://doi.org/10.54097/4fa13815

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Title: Experimental Study on Ammonia Injection Optimization for Denitration System for 1000MW Coal-Fired Unit

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Language: en

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Publication year: 2025

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Publication date: 2025-04-28

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Authors: Yudong Huang, L. Li, Ketao Xu, Bo Liu

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Landing page: https://doi.org/10.54097/4fa13815

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Concepts: Ammonia, Coal, Waste management, Unit (ring theory), Environmental science, Chemistry, Process engineering, Nuclear engineering, Engineering, Organic chemistry, Mathematics, Mathematics education

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