The utilization of red mud waste as industrial honeycomb catalyst for selective catalytic reduction of NO

doi:10.1098/rsos.191183

	The utilization of red mud waste as industrial honeycomb catalyst for selective catalytic reduction of NO
	Lin Huangfu 1,3; Abubakar, Abdullahi 1,3; Li, Changming 1; Liu, Yunjia 1,3; Wang, Chao 2; Yu, Jian 1; Gao, Shiqiu 1
刊名	ROYAL SOCIETY OPEN SCIENCE
	2019-11-01
卷号	6 期号:11 页码:11
关键词	red mud deNO(x) honeycomb catalyst selective catalytic reduction
ISSN号	2054-5703
DOI	10.1098/rsos.191183
英文摘要	As a new way for the high-value utilization of red mud (RM) waste, we proposed an improved approach to prepare the RM-based sludge/powder via the sulfuric acid hydrothermal dissolution and NH3 aqueous precipitation route and then the RM-based industrial-sized honeycomb (150 x 150 x 600 mm) was successfully produced by the extrusion moulding method in pilot scale. The synthesized RM-based powdery/honeycomb catalyst exhibited more than 80% deNO(x) activity and good durability of H2O and SO2 above 350 degrees C. But the decline of NO conversion was also observed above 350 degrees C, which was confirmed to result from the increased oxygenation of NH3 at high temperature. To improve the NO conversion at high temperature, NH3 was shunted and injected into the catalyst bed at two different places (entrance and centre) to facilitate its uniform distribution, which relieved the oxidation of NH3 and increased deNO(x) efficiency with 98% NO conversion at 400 degrees C. This work explored the industrial application feasibility for the RM-based honeycomb catalyst as well as the possible solution to decrease the oxygenation of NH3 at high temperature, which presented a valuable reference for the further pilot tests of RM catalyst in industry.
资助项目	International Science and Technology Cooperation Program of China[2016YFE0128300] ; Natural Science Foundation of China[21601192] ; Natural Science Foundation of China[21878310] ; State Key Laboratory of Multi-phase Complex Systems[MPCS-2019-0-03]
WOS关键词	V2O5-WO3/TIO2 CATALYST ; SCR CATALYST ; IRON-OXIDE ; NH3 ; PERFORMANCE ; REMOVAL ; DECOMPOSITION ; OXIDATION ; MECHANISM ; AMMONIA
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	ROYAL SOC
WOS记录号	WOS:000504006900042
资助机构	International Science and Technology Cooperation Program of China ; Natural Science Foundation of China ; State Key Laboratory of Multi-phase Complex Systems
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/38497]
专题	中国科学院过程工程研究所
通讯作者	Li, Changming; Yu, Jian
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Hunan, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lin Huangfu,Abubakar, Abdullahi,Li, Changming,et al. The utilization of red mud waste as industrial honeycomb catalyst for selective catalytic reduction of NO[J]. ROYAL SOCIETY OPEN SCIENCE,2019,6(11):11.
APA	Lin Huangfu.,Abubakar, Abdullahi.,Li, Changming.,Liu, Yunjia.,Wang, Chao.,...&Gao, Shiqiu.(2019).The utilization of red mud waste as industrial honeycomb catalyst for selective catalytic reduction of NO.ROYAL SOCIETY OPEN SCIENCE,6(11),11.
MLA	Lin Huangfu,et al."The utilization of red mud waste as industrial honeycomb catalyst for selective catalytic reduction of NO".ROYAL SOCIETY OPEN SCIENCE 6.11(2019):11.