Effect of different support on the catalytic performance of V-Mo/Ti De-NO<i><sub>x</sub></i> catalyst

Yue Yanwei; Huang Li; Lu Luyang; Wang Suqin; Xu Shun; Wang Hu; Zong Yuhao; Xie Xingxing

doi:10.7513/j.issn.1004-7638.2024.04.006

Volume 45 Issue 4

Aug. 2024

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Yue Yanwei, Huang Li, Lu Luyang, Wang Suqin, Xu Shun, Wang Hu, Zong Yuhao, Xie Xingxing. Effect of different support on the catalytic performance of V-Mo/Ti De-NOx catalyst[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(4): 34-40. doi: 10.7513/j.issn.1004-7638.2024.04.006

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Yue Yanwei, Huang Li, Lu Luyang, Wang Suqin, Xu Shun, Wang Hu, Zong Yuhao, Xie Xingxing. Effect of different support on the catalytic performance of V-Mo/Ti De-NO_x catalyst[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(4): 34-40. doi: 10.7513/j.issn.1004-7638.2024.04.006

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Effect of different support on the catalytic performance of V-Mo/Ti De-NO_x catalyst

doi: 10.7513/j.issn.1004-7638.2024.04.006

Yue Yanwei^1
,,
Huang Li^{2, 3
,
,},
Lu Luyang⁴,
Wang Suqin^{2, 3},
Xu Shun^{2, 3},
Wang Hu¹,
Zong Yuhao¹,
Xie Xingxing¹

1.
Datang Nanjing Environmental Protection Technology Co., Ltd., Nanjing 211111, Jiangsu, China
2.
Jiangsu JITRI-Topsøe Institute of Advanced Catalytic Technology, Suzhou 215132, Jiangsu, China
3.
Jiangsu JITRI-Topsøe Clean Energy R＆D Co., Ltd., Suzhou 215132, Jiangsu, China
4.
Southeast University Chengxian College, Nanjing 210088, Jiangsu, China

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Received Date: 2024-03-22
Publish Date: 2024-08-30

Abstract

Abstract

V-Mo/Ti de-NO_x catalysts were prepared by two kinds of TiO₂ with different BET surface area. XRD, N₂-adsorption, H₂-TPR, Raman, NH₃-TPD, O₂-TPD, and SO₂-TPD analysis were used to characterize the physiochemical properties of the different catalysts. The catalytic performances of the catalysts were tested via a fixed-bed micro-reactor, and the SO₂/SO₃ conversion of the different catalysts were tested through a pilot-scale reactor. The results show that the catalyst prepared by TiO₂-A and TiO₂-B (75%:25%) possesses lower content of the polymeric vanadate, higher reducibility, relatively lower acidity, and higher O_α amount than that of the catalyst prepared with pure TiO₂-A. As a result, the former catalyst exhibits higher catalytic activity. However, the acidity of the catalyst decreases obviously when 50% TiO₂-B is used, leading to the decline of the catalytic performance. What is more, the using of TiO₂-B can decrease the SO₂/SO₃ conversion of the catalyst. Overall, the catalyst prepared with 75% TiO₂-A and 25% TiO₂-B displays the best catalytic performance.
- V-Mo/Ti De-NO_x catalyst,
- support TiO₂,
- BET surface area,
- catalytic performance

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References(23)

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