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The effect of basicity of modified ground granulated blast furnace slag on its denitration performance

文献类型：期刊论文

作者Zhang, Lei3,5; Jia, Yang1; Shu, Hao1; Zhang, Lei6; Lu, Xi5; Bai, Fang4; Zhao, Qianyu5; Tian, De2
刊名JOURNAL OF CLEANER PRODUCTION
出版日期2021-07-10
卷号305页码:9
关键词Blast furnace slag Ground granulated blast furnace slag Oxide modification Alkalinity Denitration performance
ISSN号0959-6526
DOI10.1016/j.jclepro.2021.126800
英文摘要Blast furnace slag (BFS), a large amount of industrial solid waste, is currently used to make mainly concrete and building bricks. There is no doubt that it is a waste of rich elements and oxides in the slag. In order to increase the utilization and use value of BFS, this article prepared it as a denitration catalyst. The alkaline oxides CaO, MgO and the acidic oxides Al2O3, SiO2 were used to modify the ground granulated blast furnace slag (GGBS). And it investigated the effect of the modified GGBS and alkalinity on denitration performance. Combining X-Ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscope (SEM) characterization, the results showed that: Alkaline oxides modified GGBS had good denitration performance, which benefited from -OH generated during the modification process. While acidic oxides modified GGBS hardly improved the denitration performance, because the acidic oxides would absorb the f-CaO in the slag. According to the calculation formula of slag alkalinity, the quaternary, ternary and binary alkalinity of 9 wt% MgO modified GGBS were 0.901,1.262 and 1.089 respectively, and the denitration performance of the modified GGBS improved with the increase of alkalinity. (C) 2021 Published by Elsevier Ltd.
资助项目Key Research and Development Program of Shaanxi[2019ZDLSF05-05-01] ; Natural Science Basic Research Program of Shaanxi[2019JL01] ; Xi'an Science and Technology Plan Project[2019217714GXRC013CG014-GXYD13.4] ; National Natural Science Foundation of China[41907255]
WOS研究方向Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000655679200013
出版者ELSEVIER SCI LTD
资助机构Key Research and Development Program of Shaanxi ; Natural Science Basic Research Program of Shaanxi ; Xi'an Science and Technology Plan Project ; National Natural Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/48944]  
专题中国科学院过程工程研究所
通讯作者Zhang, Lei
作者单位1.Xian Univ Technol, Inst Water Resources & Hydroelect Engn, Xian 710048, Peoples R China
2.Hebei Geoenvironm Monitoring, Shijiazhuang 050021, Hebei, Peoples R China
3.Minist Nat Resources, Key Lab Coal Resources Explorat & Comprehens Util, Xian 710021, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
5.Xian Univ Sci & Technol, Sch Geol & Environm, Xian 710054, Peoples R China
6.China Natl Heavy Machinery Res Inst Co Ltd, Xian 710032, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Lei,Jia, Yang,Shu, Hao,et al. The effect of basicity of modified ground granulated blast furnace slag on its denitration performance[J]. JOURNAL OF CLEANER PRODUCTION,2021,305:9.
APA Zhang, Lei.,Jia, Yang.,Shu, Hao.,Zhang, Lei.,Lu, Xi.,...&Tian, De.(2021).The effect of basicity of modified ground granulated blast furnace slag on its denitration performance.JOURNAL OF CLEANER PRODUCTION,305,9.
MLA Zhang, Lei,et al."The effect of basicity of modified ground granulated blast furnace slag on its denitration performance".JOURNAL OF CLEANER PRODUCTION 305(2021):9.

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来源：过程工程研究所

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