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The pilot demonstration of a honeycomb catalyst for the DeNO(x) of low-temperature flue gas from an industrial coking plant
Yu, Jian1; Li, Changming1; Guo, Feng1; Gao, Shiqiu1; Zhang, Zhan-guo2; Matsuoka, Koichi2; Xu, Guangwen1,3
2018-05-01
发表期刊FUEL
ISSN0016-2361
卷号219页码:37-49
摘要The practical low-temperature DeNO(x) catalyst has a huge market demand for the flue gas purification of the widespread small-scale boilers. In this work, the modified V-based low-temperature honeycomb catalyst was produced through the hydrothermal process of metatitanic acid, which exhibited high strength and low SO2 oxidation rate. The pilot test of flue gas from a coking plant demonstrated that the honeycomb catalyst could endure the high content of SOx (400-600 ppm) and H2O (> 15 vol%) in flue gas at 300 degrees C and work stably with adjustable NO removal efficiency and little ammonia slip. After dry desulphurization and dedusting processes, the catalytic activity could still keep stable during the three-week test at as low as 220 degrees C, and the catalyst showed none deactivation. But the obvious deactivation of catalyst was observed at 270 degrees C before dry desulphurization and dedusting processes. The characterization of spent catalyst revealed that the deactivation of catalyst mainly resulted from the covering of catalytic surface by ammonium sulfate and ferric sulfate species, which formed through the gas reaction of inherent SO3 with NH3 for ammonium sulfate species and the corrosion/stripping of Fe based pipe for ferric sulfate species, respectively. After the re-calcination process, the deactivated catalyst could be regenerated with the decomposition of sulfate species.
关键词Honeycomb Catalyst Deno(x) Pilot-plant Test Deactivation And Regeneration
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.fuel.2018.01.048
收录类别SCI
语种英语
关键词[WOS]AMMONIUM BISULFATE FORMATION ; V2O5/TIO2 CATALYST ; REDUCTION ; NO ; NH3 ; SCR ; SO2 ; DECOMPOSITION ; REMOVAL ; NH3-SCR
WOS研究方向Energy & Fuels ; Engineering
WOS类目Energy & Fuels ; Engineering, Chemical
项目资助者Science and Technology Service Network Initiative of China(KFJ-SW-STS-149) ; International Science and Technology Cooperation Program of China(2016YFE0128300) ; Natural Science and Foundation of China(21601192) ; Japan Society for the Promotion of Science (JSPS)(P15758) ; State Key Laboratory of Multi-phase Complex Systems(MPCS-2017-A-06)
WOS记录号WOS:000429417300005
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24133
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Natl Inst Adv Ind Sci & Technol, 16-1 Onogawa, Tsukuba, Ibaraki 3058569, Japan
3.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China
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Yu, Jian,Li, Changming,Guo, Feng,et al. The pilot demonstration of a honeycomb catalyst for the DeNO(x) of low-temperature flue gas from an industrial coking plant[J]. FUEL,2018,219:37-49.
APA Yu, Jian.,Li, Changming.,Guo, Feng.,Gao, Shiqiu.,Zhang, Zhan-guo.,...&Xu, Guangwen.(2018).The pilot demonstration of a honeycomb catalyst for the DeNO(x) of low-temperature flue gas from an industrial coking plant.FUEL,219,37-49.
MLA Yu, Jian,et al."The pilot demonstration of a honeycomb catalyst for the DeNO(x) of low-temperature flue gas from an industrial coking plant".FUEL 219(2018):37-49.
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