Research progress on resource utilization of spent SCR denitrification catalyst

Song Shizhe; Qian Feng; Liu Zhongcheng; Ma Guangyu; Hou Hongyu; Xu Pengfei

doi:10.7513/j.issn.1004-7638.2024.05.013

Volume 45 Issue 5

Oct. 2024

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Song Shizhe, Qian Feng, Liu Zhongcheng, Ma Guangyu, Hou Hongyu, Xu Pengfei. Research progress on resource utilization of spent SCR denitrification catalyst[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(5): 98-107. doi: 10.7513/j.issn.1004-7638.2024.05.013

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Song Shizhe, Qian Feng, Liu Zhongcheng, Ma Guangyu, Hou Hongyu, Xu Pengfei. Research progress on resource utilization of spent SCR denitrification catalyst[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(5): 98-107. doi: 10.7513/j.issn.1004-7638.2024.05.013

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Research progress on resource utilization of spent SCR denitrification catalyst

doi: 10.7513/j.issn.1004-7638.2024.05.013

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

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Received Date: 2024-04-17
Available Online: 2024-10-30
Publish Date: 2024-10-30

Abstract

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

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References(42)

References

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