废旧SCR脱硝催化剂资源化利用研究进展

宋世哲; 钱峰; 刘忠成; 马光宇; 侯洪宇; 徐鹏飞

doi:10.7513/j.issn.1004-7638.2024.05.013

废旧SCR脱硝催化剂资源化利用研究进展

doi: 10.7513/j.issn.1004-7638.2024.05.013

宋世哲^{1, 2,},
钱峰^{1, 2},
刘忠成³,
马光宇^{1, 2},
侯洪宇^{1, 2},
徐鹏飞^{1, 2}

1.
海洋装备用金属材料及其应用国家重点实验室，辽宁鞍山 114009
2.
鞍钢股份有限公司技术中心，辽宁鞍山 114009
3.
鞍钢股份有限公司鲅鱼圈钢铁分公司，辽宁营口 115007

详细信息

作者简介:
宋世哲，1995年出生，男，吉林吉林人，硕士，长期从事冶金资源循环利用方面的研究工作，E-mail：535424234@qq.com

中图分类号: X757,TQ426
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出版历程
- 收稿日期: 2024-04-17
- 网络出版日期: 2024-10-30
- 刊出日期: 2024-10-30

Research progress on resource utilization of spent SCR denitrification catalyst

Song Shizhe^{1, 2
,},
Qian Feng^{1, 2},
Liu Zhongcheng³,
Ma Guangyu^{1, 2},
Hou Hongyu^{1, 2},
Xu Pengfei^{1, 2}

1.
State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan 114009, Liaoning, China
2.
Technical Center, Angang Steel Co. Ltd., Anshan 114009, Liaoning, China
3.
Bayuquan Iron & Steel Subsidiary Company of Angang Steel Co.Ltd., Yingkou 115007，Liaoning, China

摘要

摘要: 近年来，选择性催化还原（SCR）技术的广泛应用导致了废旧SCR脱硝催化剂的大量产生，为了节约资源，保护环境，必须对其进行妥善处理。废旧SCR脱硝催化剂通过回收有价组分、整体利用和固化处理等方式可实现资源化利用。回收有价组分的方法主要包括酸碱浸出、活化焙烧、熔盐电解、化学沉淀、有机萃取、离子交换等；整体利用的方法主要包括制备再生催化剂、生产含钛球团和含钛烧结矿；固化处理的方法主要包括熔融固化、水泥固化和陶瓷固化。对上述方法做出了详细的总结和展望，希望可以为未来废旧SCR脱硝催化剂的资源化利用提供启发和参考。
- 废旧SCR脱硝催化剂 /
- 资源化利用 /
- 有价组分 /
- 整体利用 /
- 固化处理
Abstract: Recently, due to the increasing application of selective catalytic reduction (SCR) technology, a large number of spent SCR denitrification catalysts were inevitably produced. In order to save the resources and protect the environment, much attention should be attracted on their proper disposal. Spent SCR denitrification catalysts could be recycled as resources through the recovery of valuable components, overall utilization or solidification treatment, respectively. The valuable components could be effectively recovered from spent denitrification catalysts by acid-base leaching, active roasting, molten salt electrolysis, chemical precipitation, organic extraction, ion exchange. The catalyst could also be wholly used as a raw material for regenerating the catalyst and producing titanium-containing pellets or titanium-containing sinter. Moreover, it can also be solidified by melt solidification, cement solidification, ceramic solidification. Overall, the above-mentioned methods were comprehensively summarized and prospected, which will provide inspiration and reference for the resource utilization of spent SCR denitrification catalysts in the future.
- spent SCR denitrification catalyst /
- resource utilization /
- valuable components /
- overall utilization /
- solidification treatment

HTML全文

图 1 V₂O₅回收工艺流程^[14]

Figure 1. The recovery process flow chart of V₂O₅

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图 2 钾盐焙烧回收钒钛工艺流程^[21]

Figure 2. The process flow chart for recoverying of vanadium and tungsten from spent SCR catalysts by K₂CO₃ roasting

下载: 全尺寸图片幻灯片

图 3 再生催化剂工艺流程^[22]

Figure 3. The process flow chart for preparing regenerated catalyst

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图 4 钒、钨、钛三组分的综合回收利用工艺流程^[27]

Figure 4. The process flow chart of comprehensive recovery and utilization of vanadium, tungsten and titanium

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图 5 废旧SCR脱硝催化剂中钒、钨、钛高纯度回收^[31]

Figure 5. The high-purity recovery process flow chart of vanadium, tungsten and titanium in spent SCR catalyst

下载: 全尺寸图片幻灯片

图 6 高附加值利用钒、钨、钛工艺流程^[33]

Figure 6. The process chart of high value-added utilization of titanium and recovery of vanadium and tungsten elements

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图 7 回收工艺中相关物质的转化关系

Figure 7. The conversion relationship of substances in recovery process

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图 8 制氢催化剂的制备流程^[36]

Figure 8. The process chart for preparation of the reforming hydrogen production catalyst

下载: 全尺寸图片幻灯片

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