Mechanism and simulation study of ammonia-injected denitrification at high-temperature reduction zone

LU Xu; WU Qinglong; ZHANG Xiangyu; BAI Wengang; ZHANG Bo; GAO Ning; XU Hongjie

doi:10.19666/j.rlfd.201907130

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Mechanism and simulation study of ammonia-injected denitrification at high-temperature reduction zone

Thermal Power Generation Issue 1, (2020)

更新时间：2025-09-28

- Mechanism and simulation study of ammonia-injected denitrification at high-temperature reduction zone
- 作者机构：
  
  1. 西安热工研究院有限公司,陕西,西安,710054
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201907130
  CLC： X773
- Published Online：31 December 2019，
  
  Published：2020
- 稿件说明：
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LU Xu, WU Qinglong, ZHANG Xiangyu, et al. Mechanism and simulation study of ammonia-injected denitrification at high-temperature reduction zone[J]. Thermal Power Generation, 2020, (1).
DOI：

LU Xu, WU Qinglong, ZHANG Xiangyu, et al. Mechanism and simulation study of ammonia-injected denitrification at high-temperature reduction zone[J]. Thermal Power Generation, 2020, (1). DOI： 10.19666/j.rlfd.201907130.

摘要

无氧或痕量氧条件下，氨与NO反应温度窗口向高温区偏移，这与传统的选择性非催化还原（SNCR）机理存在区别。本文结合GRI 3.0、Skreiberg2004和Glarborg1998机理建立了高温还原区喷氨脱硝机理模型，模拟计算了温度、含氧量等因素对脱硝效率的影响规律。结果表明：计算结果与配气实验数据基本吻合；1 200~1 600 ℃温度窗口，含氧量小于1%（体积分数，下同）时，链式反应生成活性基团H和OH促进了氨与NO的反应，理论脱硝效率可达到90%。本文建立的机理模型可为高温喷氨脱硝工艺设计提供参考。

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