Abstract

The study is aimed at the development of a non-catalytic process for removal of nitrogen oxides from flue gases of thermal generating units. The results of experimental studies of a modified two-stage selective non-catalytic reduction of nitrogen oxides with injection of a reducing agent (urea) below the stoichiometric amount in each stage are described. The possibility of attaining a higher and more stable reducing efficiency compared with the conventional one-stage process and minimization of the formation of ammonia as a secondary pollutant is demonstrated.

中文翻译：

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火力发电机组烟气脱氮的两级选择性非催化工艺

摘要

该研究旨在开发一种非催化工艺，用于去除火力发电机组烟气中的氮氧化物。描述了改进的两阶段选择性非催化还原氮氧化物的实验研究结果，其中在每个阶段中注入低于化学计量的还原剂（尿素）。与传统的一步法相比，可以实现更高、更稳定的还原效率，并最大限度地减少作为二次污染物的氨的形成。