Recent progress on elimination of NO<italic style="font-style: italic"><sub>x</sub></italic> from flue gas <italic style="font-style: italic">via</italic> SCR technology under ultra-low temperatures (&lt; 150℃)

TANG Changjin; SUN Jingfang; DONG Lin

doi:10.11949/0438-1157.20200785

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Recent progress on elimination of NO_x from flue gas via SCR technology under ultra-low temperatures (< 150℃)

Celebration Column for School of Chemistry and Chemical Engineering\, Nanjing University | 更新时间：2026-07-24

- Recent progress on elimination of NO_x from flue gas via SCR technology under ultra-low temperatures (< 150℃)
- CIESC Journal Vol. 71, Issue 11, Pages: 4873-4884(2020)
- 作者机构：
  
  1.南京大学化学化工学院，现代分析中心，江苏省机动车尾气污染控制重点实验室，江苏南京 210023
  2.南京师范大学环境学院，江苏南京 210023
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20200785
  CLC： TQ 028.8
- Received：19 June 2020，
  
  Revised：2020-08-12，
  
  Online First：03 November 2020，
  
  Published：05 November 2020
- 稿件说明：
移动端阅览
汤常金, 孙敬方, 董林. 超低温（< 150℃）SCR脱硝技术研究进展[J]. 化工学报, 2020, 71(11): 4873-4884

TANG Changjin, SUN Jingfang, DONG Lin. Recent progress on elimination of NO_x from flue gas via SCR technology under ultra-low temperatures (< 150℃)[J]. CIESC Journal, 2020, 71(11): 4873-4884 DOI: 10.11949/0438-1157.20200785.
汤常金, 孙敬方, 董林. 超低温（< 150℃）SCR脱硝技术研究进展[J]. 化工学报, 2020, 71(11): 4873-4884 DOI： 10.11949/0438-1157.20200785.

TANG Changjin, SUN Jingfang, DONG Lin. Recent progress on elimination of NO_x from flue gas via SCR technology under ultra-low temperatures (< 150℃)[J]. CIESC Journal, 2020, 71(11): 4873-4884 DOI: 10.11949/0438-1157.20200785. DOI：

摘要

以氨为还原剂的选择性催化还原（SCR）技术是工业脱硝的主流技术。我国已形成在180~420℃（包含低温和中高温）范围内具有良好应用效果的SCR技术及其催化剂体系，但超低温段（< 150℃）仍有待突破。超低温SCR脱硝通常位于“除尘-脱硫”工艺之后，具有烟气组成简单、能耗少、改造成本低等优点，吸引了研究人员的广泛关注。在简要分析不同行业烟气排放特征及治理现状的基础上，总结了150℃以下具有良好SCR活性的催化剂体系（锰基、钒基、铬基和活性炭基），重点对催化剂的抗水、硫、碱金属和硝铵中毒性能进行了探讨，并介绍了该领域最近的一些中试/侧线试验研究进展情况，最后对这一技术的未来发展方向进行了展望。

Abstract

Selective catalytic reduction of NO with NH

(NH

-SCR) is a well-established technology for eliminating NO

from stationary source. Over the past decades

great progress has been achieved in China in developing practical SCR catalysts that can work well in power plant and other fields like coking industry at low

and medium temperature range (180 — 420℃). However

the extension of SCR technology to ultra-low temperatures (

e.g.

150℃)

which can meet the requirement of flue gas treatment from diverse non-electricity fields like cement kiln and industrial boiler

is still a big challenge. Ultra-low temperature SCR denitrification is usually located after the “dust removal-desulfurization” process. It has the advantages of simple flue gas composition

low energy consumption

and low transformation cost

which has attracted wide attention from researchers. In this mini-review

we first give a brief introduction on the current status of flue gas control from different industrial fields. Then

the catalyst systems (MnO

CrO

activated carbon) that can provide good deNO

performance under 150℃ are summarized

and the resistance property to H

alkali metals and ammonium nitrate species is emphasized. As well

the recent progress over pilot experiments for industrial application is introduced. Lastly

the prospect of ultra-low temperature SCR denitrification is discussed.

关键词

Keywords

references

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LI Songgeng

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Related Institution

State Key Laboratory of Multi-phase Complex System, Institute of Process Engineering, Chinese Academy of Science

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School of Natural and Applied Sciences, Northwestern Polytechnical University

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Recent progress on elimination of NOx from flue gas via SCR technology under ultra-low temperatures (< 150℃)

DOI：10.11949/0438-1157.20200785

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Recent progress on elimination of NO_x from flue gas via SCR technology under ultra-low temperatures (< 150℃)