海绵铁负载锰脱硝催化剂的制备及性能研究

宋博; 沈振兴; 王紫彤; 彭勤; 徐红梅; 杨柳; 莫欣雨

doi:10.7652/xjtuxb202601005

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海绵铁负载锰脱硝催化剂的制备及性能研究

专题　“双碳”背景下的污染控制与资源化利用 | 更新时间：2026-01-15

- 海绵铁负载锰脱硝催化剂的制备及性能研究
- Study on the Preparation and Performance of Manganese-Based Denitration Catalyst Supported on Sponge Iron
- 西安交通大学学报 2026年60卷第1期页码：41-52
- 作者机构：
  
  西安交通大学能源与动力工程学院，710049，西安
- 作者简介：
  
  作者简介：宋博（1998—），男，博士生；
  沈振兴（通信作者），男，教授，博士生导师。
- 基金信息：
  
  陕西省重点研发计划产业链项目。(2024SF-ZDCYL-05-06)
- DOI：10.7652/xjtuxb202601005
  中图分类号： X511
- 收稿：2025-04-28，
  
  纸质出版：2026-01-10
- 稿件说明：
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宋博, 沈振兴, 王紫彤, 等. 海绵铁负载锰脱硝催化剂的制备及性能研究[J]. 西安交通大学学报, 2026,60(1):41-52.

SONG Bo, SHEN Zhenxing, WANG Zitong, et al. Study on the Preparation and Performance of Manganese-Based Denitration Catalyst Supported on Sponge Iron[J]. Journal of Xi'an Jiaotong University, 2026, 60(1): 41-52.
宋博, 沈振兴, 王紫彤, 等. 海绵铁负载锰脱硝催化剂的制备及性能研究[J]. 西安交通大学学报, 2026,60(1):41-52. DOI： 10.7652/xjtuxb202601005.

SONG Bo, SHEN Zhenxing, WANG Zitong, et al. Study on the Preparation and Performance of Manganese-Based Denitration Catalyst Supported on Sponge Iron[J]. Journal of Xi'an Jiaotong University, 2026, 60(1): 41-52. DOI： 10.7652/xjtuxb202601005.

摘要

针对氮氧化物（NO

）污染控制问题，研究了一种基于海绵铁（HMT）负载锰的高效NH

选择性催化还原（NH

-SCR）脱硝催化剂。使用2 mol/L硝酸对HMT进行改性，并在此基础上浸渍负载锰前驱体（质量分数为15%）后，经450℃煅烧获得脱硝催化剂HMT-2M-15Mn-450。在固定床反应器中，研究了HMT-2M-15Mn-450的脱硝活性、抗硫抗水性和长时间使用稳定性等。通过X射线衍射、X射线光电子能谱和扫描电镜等表征手段，研究了HMT-2M-15Mn-450催化剂中锰和HMT的相互作用。研究表明：在空速为50000 m

/h时，HMT-2M-15Mn-450在200～250℃的NO转化率超过90%；HMT-2M-15Mn-450在200℃连续使用12h后NO转化率仍超过95%，且具有较强的抗硫抗水中毒性能。研究结果可为铁基矿物材料在烟气脱硝领域的资源化高值利用提供参考。

Abstract

To address the issue of nitrogen oxides (NO

)pollution control，a high-efficiency NH

-selective catalytic reduction (NH

-SCR)denitration catalyst based on manganese supported on sponge iron (HMT) is developed.The HMT is modified with 2 mol/L nitric acid，impregnated with a manganese precursor (mass fraction of 15%)，and calcined at 450℃ to obtain the denitration catalyst designated asHMT-2 M-15 Mn-450.The denitration activity，resistance to sulfur and water poisoning，and long-term stability ofHMT-2 M-15 Mn-450 are investigated in a fixed-bed reactor.The interaction between manganese and HMT in the HMT-2 M-15 Mn-450 catalyst is

characterized using techniques such as X-ray diffraction (XRD)，X-ray photoelectron spectroscopy (XPS)，and scanning electron microscopy (SEM).The results demonstrate that at a space velocity of 50000 m

/h，the NO conversion efficiency of HMT-2 M-15 Mn-450 exceeds 90% within the temperature range of 200—250℃.After 12 hours of continuous operation at 200℃，the NO conversion rate remains above 95%，and the catalyst exhibits strong resistance to sulfur and water poisoning.The findings provide a valuable reference for the high-value utilization of iron-based mineral materials in the field of flue gas denitration.

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