The adsorption and catalytic oxidation of the element mercury over cobalt modified Ce–ZrO2 catalyst
作者： X. P. Zhang , Y. Z. Cui , B. J. Tan , J. X. Wang , Z. F. Li
DOI: 10.1039/C6RA19450H
关键词:
摘要: Co was used as a modifier for Ce–ZrO2 to improve the surface physicochemical properties of catalysts. The obtained catalysts Cox–Ce–ZrO2 were investigated Hg0 adsorption and oxidation in temperature range 100–350 °C. results showed that modified had an excellent removal efficiency. For Co0.3–Ce–ZrO2, efficiency above 81.5% even after 164.5 h test reached 100% 100–250 XRD, BET XPS suggested larger areas more oxygen vacancies. H2-TPR addition improved redox performance catalyst. These led better by Furthermore, Co0.3–Ce–ZrO2 before reaction that, during process, chemisorbed dramatically consumed while some Co3+ Ce4+ changed Co2+ Ce3+. This participated process. A probable pathway deduced based on these results. effects individual flue gas components (O2, NO, H2O, SO2) O2 NO whereas H2O SO2 inhibited it.
rsc.org
sci-hub.se 参考文章(50)
Jun Yu, Zhichun Si, Lei Chen, Xiaodong Wu, Duan Weng, Selective catalytic reduction of NOx by ammonia over phosphate-containing Ce0.75Zr0.25O2 solids Applied Catalysis B-environmental. ,vol. 163, pp. 223- 232 ,(2015) , 10.1016/J.APCATB.2014.08.006
Yinyin Wang, Boxiong Shen, Chuan He, Shiji Yue, Fumei Wang, Simultaneous Removal of NO and Hg0 from Flue Gas over Mn–Ce/Ti-PILCs Environmental Science & Technology. ,vol. 49, pp. 9355- 9363 ,(2015) , 10.1021/ACS.EST.5B01435
Jianping Yang, Yongchun Zhao, Lin Chang, Junying Zhang, Chuguang Zheng, Mercury Adsorption and Oxidation over Cobalt Oxide Loaded Magnetospheres Catalyst from Fly Ash in Oxyfuel Combustion Flue Gas. Environmental Science & Technology. ,vol. 49, pp. 8210- 8218 ,(2015) , 10.1021/ACS.EST.5B01029
Shipeng Ding, Fudong Liu, Xiaoyan Shi, Hong He, Promotional effect of Nb additive on the activity and hydrothermal stability for the selective catalytic reduction of NOx with NH3 over CeZrOx catalyst Applied Catalysis B-environmental. ,vol. 180, pp. 766- 774 ,(2016) , 10.1016/J.APCATB.2015.06.055
L.F. Liotta, G. Di Carlo, G. Pantaleo, G. Deganello, Co3O4/CeO2 and Co3O4/CeO2–ZrO2 composite catalysts for methane combustion: Correlation between morphology reduction properties and catalytic activity Catalysis Communications. ,vol. 6, pp. 329- 336 ,(2005) , 10.1016/J.CATCOM.2005.02.006
Wenqing Xu, Hairui Wang, Xuan Zhou, Tingyu Zhu, CuO/TiO2 catalysts for gas-phase Hg0 catalytic oxidation Chemical Engineering Journal. ,vol. 243, pp. 380- 385 ,(2014) , 10.1016/J.CEJ.2013.12.014
Dae-Woon Jeong, Hyun-Suk Na, Jae-Oh Shim, Won-Jun Jang, Hyun-Seog Roh, A crucial role for the CeO2–ZrO2 support for the low temperature water gas shift reaction over Cu–CeO2–ZrO2 catalysts Catalysis Science & Technology. ,vol. 5, pp. 3706- 3713 ,(2015) , 10.1039/C5CY00499C
Albert A. Presto, Evan J. Granite, Survey of catalysts for oxidation of mercury in flue gas Environmental Science & Technology. ,vol. 40, pp. 5601- 5609 ,(2006) , 10.1021/ES060504I
Yine Xie, Caiting Li, Lingkui Zhao, Jie Zhang, Guangming Zeng, Xunan Zhang, Wei Zhang, Shasha Tao, Experimental study on Hg0 removal from flue gas over columnar MnOx-CeO2/activated coke Applied Surface Science. ,vol. 333, pp. 59- 67 ,(2015) , 10.1016/J.APSUSC.2015.01.234
Fumei Wang, Guoliang Li, Boxiong Shen, Yinyin Wang, Chuan He, Mercury removal over the vanadia-titania catalyst in CO2-enriched conditions Chemical Engineering Journal. ,vol. 263, pp. 356- 363 ,(2015) , 10.1016/J.CEJ.2014.10.091