Role of acid gases in Hg0 removal from flue gas over a novel cobalt-containing biochar prepared from harvested cobalt-enriched phytoremediation plant
作者： Honghu Li , Jingdong Zhang , Yanxiao Cao , Chaoyang Liu , Fei Li
DOI: 10.1016/J.FUPROC.2020.106478
关键词:
摘要: Abstract A novel biochar containing highly-dispersed cobalt oxides was prepared by one-step pyrolysis using Co-enriched Siberian Iris as the raw material, and it used for elemental mercury removal from flue gas. The presence of NO or HCl could approximately keep Hg0 efficiency over 85%, while SO2 suppressed removal. role aforementioned acid gases in such systematically studied. surface active oxygen species derived reversible conversion between Co3+ Co2+ activate adsorbed (HCl) to produce nitrogenous (chlorine) species, which functioned site oxidation reaction occurred mainly through Eley-Rideal mechanism. consumed reacted with generate bonded SO42−, resulting irreversible damage on biochar. formation well its would be hampered generation sulfate. This study can give some basic insights into application heavy metal enriched phytoremediation plants
sci-hub.st 参考文章(64)
Guoqiang Zhang, Zhong Li, Huayan Zheng, Tingjun Fu, Yubo Ju, Yuchun Wang, Influence of the surface oxygenated groups of activated carbon on preparation of a nano Cu/AC catalyst and heterogeneous catalysis in the oxidative carbonylation of methanol Applied Catalysis B-environmental. ,vol. 179, pp. 95- 105 ,(2015) , 10.1016/J.APCATB.2015.05.001
Guoliang Li, Boxiong Shen, Yongwang Li, Bin Zhao, Fumei Wang, Chuan He, Yinyin Wang, Min Zhang, Removal of element mercury by medicine residue derived biochars in presence of various gas compositions Journal of Hazardous Materials. ,vol. 298, pp. 162- 169 ,(2015) , 10.1016/J.JHAZMAT.2015.05.031
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
Dong Wook Kwon, Kwang Hee Park, Sung Chang Hong, Enhancement of SCR activity and SO2 resistance on VOx/TiO2 catalyst by addition of molybdenum Chemical Engineering Journal. ,vol. 284, pp. 315- 324 ,(2016) , 10.1016/J.CEJ.2015.08.152
Pengying Wang, Sheng Su, Jun Xiang, Fan Cao, Lushi Sun, Song Hu, Siyuan Lei, Catalytic oxidation of Hg0 by CuO–MnO2–Fe2O3/γ-Al2O3 catalyst Chemical Engineering Journal. ,vol. 225, pp. 68- 75 ,(2013) , 10.1016/J.CEJ.2013.03.060
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
Shijian Yang, Yongfu Guo, Naiqiang Yan, Daqing Wu, Hongping He, Jiangkun Xie, Zan Qu, Jinping Jia, Remarkable effect of the incorporation of titanium on the catalytic activity and SO2 poisoning resistance of magnetic Mn–Fe spinel for elemental mercury capture Applied Catalysis B-environmental. ,vol. 101, pp. 698- 708 ,(2011) , 10.1016/J.APCATB.2010.11.012
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
Anchao Zhang, Wenwen Zheng, Jun Song, Song Hu, Zhichao Liu, Jun Xiang, Cobalt manganese oxides modified titania catalysts for oxidation of elemental mercury at low flue gas temperature Chemical Engineering Journal. ,vol. 236, pp. 29- 38 ,(2014) , 10.1016/J.CEJ.2013.09.060
John H Pavlish, Everett A Sondreal, Michael D Mann, Edwin S Olson, Kevin C Galbreath, Dennis L Laudal, Steven A Benson, Status review of mercury control options for coal-fired power plants Fuel Processing Technology. ,vol. 82, pp. 89- 165 ,(2003) , 10.1016/S0378-3820(03)00059-6