液体添加剂对 SNCR 低温脱硝活性及 N2O 和 CO 排放特性的影响

IF 1.8 4区工程技术 Q3 Chemical Engineering

Asia-Pacific Journal of Chemical Engineering Pub Date : 2024-08-08 DOI:10.1002/apj.3138

Wenxi Ding, Menglian Liu, Jun Wan, Wei Liu, Jiliang Ma, Yufeng Duan

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引用次数: 0

摘要

氮氧化物（NOx）排放问题已引起环境保护领域的广泛关注。研究了氢氧化钠（NaOH）、过氧化氢（H2O2）、苯酚（C6H5OH）和乙醇（C2H6OH）对选择性非催化还原（SNCR）脱硝活性以及二次污染物一氧化二氮（N2O）和一氧化碳（CO）排放的影响。结果表明，在低温条件下，加入 NaOH、苯酚和乙醇可以通过提供 OH 来提高脱硝效率。从 650°C 到 750°C，乙醇的效果最好，脱硝效率为 30%。从 750°C 到 850°C，苯酚的脱硝效率为 40% 到 50%。苯酚和乙醇的引入会增加 N2O 和 CO 的排放。从 700°C 到 800°C，双氧水只造成少量的 N2O 排放，对 CO 没有明显影响。

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Effect of liquid additives on the low temperature denitration activity of SNCR and emission characteristics of N2O and CO

The problem of nitrogen oxide (NOx) emissions has attracted wide attention in the field of environmental protection. The effects of sodium hydroxide (NaOH), hydrogen peroxide (H2O2), phenol (C6H5OH) and ethanol (C2H6OH) on the denitration activity of selective non‐catalytic reduction (SNCR) and the emission of secondary pollutants nitrous oxide (N2O) and carbon monoxide (CO) were investigated. Results indicated that the addition of NaOH, phenol and ethanol can improve the denitration efficiency under low temperature by providing OH. From 650°C to 750°C, ethanol had the best effect, with the denitration efficiency of 30%. From 750°C to 850°C, the denitration efficiency of phenol was 40% ~ 50%. The introduction of phenol and ethanol would increase the N2O and CO emissions. From 700°C to 800°C, hydrogen peroxide only caused a small amount of N2O emissions and had no significant effect on CO.

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来源期刊

Asia-Pacific Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

3.50

自引率

11.10%

发文量

111

审稿时长

2.8 months

期刊介绍： Asia-Pacific Journal of Chemical Engineering is aimed at capturing current developments and initiatives in chemical engineering related and specialised areas. Publishing six issues each year, the journal showcases innovative technological developments, providing an opportunity for technology transfer and collaboration. Asia-Pacific Journal of Chemical Engineering will focus particular attention on the key areas of: Process Application (separation, polymer, catalysis, nanotechnology, electrochemistry, nuclear technology); Energy and Environmental Technology (materials for energy storage and conversion, coal gasification, gas liquefaction, air pollution control, water treatment, waste utilization and management, nuclear waste remediation); and Biochemical Engineering (including targeted drug delivery applications).