铜锰基整体式催化剂对烧结烟气CO净化特性

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (503 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In this paper, the catalyst powder, the monolithic catalyst based on modified copper manganese oxides supported by foam metals and cordierite were prepared. The CO conversion efficiency and stability of the three samples were compared under the gas condition prepared in the laboratory. The monolithic catalyst supported by cordierite was selected, and its CO conversion efficiency, stability, and catalytic characteristics after degradation at different loading amounts, space velocities, and temperatures were tested under the actual condition of iron-ore sintering flue gas in a steel plant. 2m³ volume of optimized monolithic catalyst was prepared in batches and a pilot test of CO purification from 6000m³/h sintering flue gas was carried out. The results show that the high-concentration water vapor in the flue gas significantly inhibited the CO catalytic oxidation reaction, resulting in T₉₀ increased by 38℃ after reaction for 240h. The higher loading amount of the catalysts, the lower the T₉₀, the shorter the duration for efficiency decay, and the higher the stabilized efficiency. However, this advantage decreases with increasing space velocity. In the pilot test for 1440h (2months) at the inlet feed temperature of 185~195℃, the CO conversion efficiency was constantly greater than 85% (averaged at 90%), and the CO concentration downstream was lower than 1000×10^-6 with temperature reaching 220℃, which obtained benefit of both energy saving and emission reduction.

Key words： iron-ore sintering flue gas carbon monoxide(CO) monolithic catalyst catalytic purification copper manganese oxide influencing factors

Received: 08 February 2022

PACS:	X701.7
	TQ426.8

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Zi-yi
	BIAN Wen-bo
	HOU Huan-yu
	ZHANG Xuan
	JIANG Li-jun
	SUN Fang-zhou
	LIU Ying-shu

Cite this article:

LI Zi-yi,BIAN Wen-bo,HOU Huan-yu等. Performance of CO purification from sintering flue gas by copper - manganese - based monolithic catalyst[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(9): 4052-4058.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I9/4052

[1]	Zheng B, Dan T, Meng L, et al. Trends in China's anthropogenic emissions since 2010 as the consequence of clean air action [J]. Atmospheric Chemistry & Physics Discussions, 2018,18(19):14095- 14111.
[2]	《中国钢铁工业年鉴》编辑委员会,2020中国钢铁工业年鉴 [M]. 北京:中国钢铁工业年鉴社, 2020. The Editorial Board of China Steel Yearbook, 2020 China steel yearbook [M]. Beijing: China Steel Industry Yearbook Society, 2020.
[3]	罗静,陈旺生,秦林波,等.基于烧结矿催化还原的烧结烟气脱硝试验研究 [J]. 安全与环境学报, 2015,15(3):195-198. Luo J, Chen W S, Qin L B, et al. Experimental study on the sintering flue gas denitration based on the sintering ore catalysts [J]. Journal of Safety and Environment, 2015,15(3):195-198.
[4]	李洪涛.环境空气中CO对健康的影响 [J]. 科技资讯, 2017,15(8): 132+134. Li H T. Health effects of CO in ambient air [J]. Science & Technology Information, 2017,15(8):132+134.
[5]	张祎,刘有智,袁志国.密闭空间一氧化碳净化技术探讨 [J]. 天然气化工(C1化学与化工), 2014,39(2):85-90. Zhang Y, Liu Y Z, Yuan Z G. A discussion on carbon monoxide cleaning technologies for enclosed space [J]. Natural Gas Chemical Industry, 2014,39(2):85-90.
[6]	廖继勇,郑浩翔,甘敏,等.烧结烟气CO的产生及治理途径——末端治理技术 [J]. 烧结球团, 2021,46(2):17-23. Liao J Y, Zheng H X, Gan M, et al. Generation and governance way of CO in sintering flue gas--end treatment technology [J]. Sintering and Pelletizing, 2021,46(2):17-23.
[7]	Iablokov V. Manganese and cobalt oxides as highly active catalysts for CO oxidation [D]. Universite Libre de Bruxelles, Brussels, 2011.
[8]	陈海丽,张双全,范恒亮,等.活性焦烟气脱硫影响因素研究 [J]. 煤炭科学技术, 2013,41(8):118-121,125. Chen H L, Zhang S Q, Fan H L, et al. Research on factors affected flue gas desulfurization of activated coke [J]. Coal Science and Technology, 2013,41(8):118-121,125.
[9]	孙丽娜,李凯,汤立红,等.常见金属氧化物烟气脱硫研究进展 [J]. 化工进展, 2017,36(1):181-188. Sun L N, Li K, Tang L H, et al. Research progress of common metal oxides for flue gas desulfurization [J]. Chemical Industry and Engineering Progress, 2017,36(1):181-188.
[10]	梁磊.烧结烟气低温SCR脱硝催化剂的制备及试验研究 [J]. 烧结球团, 2021,46(3):86-92. Liang L. Preparation and experimental research on low temperature SCR denitration catalyst for sintering flue gas [J]. Sintering and Pelletizing, 2021,46(3):86-92.
[11]	Li J, Lei Y Y, Guo Z Z, et al. Temperature-dependent reaction pathways of CO oxidation and the application as monolithic catalysts for Co3O4 nanorods [J]. Applied Catalysis A, General, 2019,587: 117191.
[12]	Xiao H L, Ye D Q, Mo S P, et al. Low-temperature CO oxidation over integrated penthorum chinense-like MnCo2O4 arrays anchored on three-dimensional Ni foam with enhanced moisture resistance [J]. Catalysis science & technology, 2018,8(6):1663-1676.
[13]	李金林,罗飞,赵福真,等.金属基整体式催化剂上CO催化氧化稳定性能研究 [J]. 中南民族大学学报(自然科学版), 2018,37(1):1-5. Li J L, Luo F, Zhao F Z, et al. Stability of metal based monolithic catalysts for CO oxidation [J]. Journal of South-Central University for Nationalities Natural Science Edition), 2018,37(1):1-5.
[14]	陈玲.整体式负载型Pt催化剂的制备及催化氧化CO的研究 [D]. 南昌:东华理工大学, 2017. Chen L. Study on catalytic combustion of CO over the supported Pt monolithic catalysts [D]. Nanchang: East China University of Technology, 2017.
[15]	周昊,成毅,周明熙,等. Pt涂层蜂窝金属和Ce改性Fe2O3催化CO的性能对比 [J]. 工程科学学报, 2020,42(1):70-77. Zhou H, Cheng Y, Zhou M X, et al. Analysis of CO catalytic oxidation by Pt-loading catalyst and Ce-doped Fe2O3 [J]. Chinese Journal of Engineering, 2020,42(1):70-77.
[16]	Yu J, Zhao D, Xu X, et al. Study on RuO2/SnO2: novel and active catalysts for CO and CH4 oxidation [J]. ChemCatChem, 2012,4(8): 1122-1132.
[17]	Hou X D, Wang Y Z, Zhao Y X. Effect of CeO2 doping on structure and catalytic performance of Co3O4 catalyst for low-temperature CO oxidation [J]. Catalysis Letters, 2008,123(3/4):321-326.
[18]	Liu Y, Guo Y, Peng H, et al. Modifying hopcalite catalyst by SnO2 addition: An effective way to improve its moisture tolerance and activity for low temperature CO oxidation [J]. Applied Catalysis A: General, 2016,525:204-214.
[19]	Xu X, Sun X, Han H, et al. Improving water tolerance of Co3O4by SnO2 addition for CO oxidation [J]. Applied Surface Science, 2015, 355(15):1254-1260.
[20]	Li Y, Peng H, Xu X, et al. Facile preparation of mesoporous Cu-Sn solid solutions as active catalysts for CO oxidation [J]. Rsc. Advances, 2015,5(33):25755-25764.
[21]	Li G, Li L, Li Y, et al. A highly moisture-resistant Fe-doped mesoporous Co3O4 catalyst for efficient low-temperature CO oxidation [J]. New Journal of Chemistry, 2015,39:1742-1748.
[22]	Dey S, Mehta N S. To optimized various parameters of Hopcalite catalysts in the synthetic processes for low temperature CO oxidation [J]. Applications in Energy and Combustion Science, 2021,6:100031.
[23]	Mirzaei A A, Faizi M, Habibpour R. Effect of preparation conditions on the catalytic performance of copper manganese oxide catalysts for CO oxidation [J]. Applied Catalysis A: General, 1998,306:98-107.
[24]	Choi K H, Lee D H, Kim H S, et al. Reaction characteristics of precious-metal-free ternary Mn–Cu–M (M = Ce, Co, Cr, and Fe) oxide catalysts for low-temperature CO oxidation [J]. Industrial & Engineering Chemistry Research, 2016,55(16):4443-4450.
[25]	Liu Y, Guo Y, Peng H, et al. Modifying Hopcalite catalyst by SnO2 addition: An effective way to improve its moisture tolerance and activity for low temperature CO oxidation [J]. Applied Catalysis A: General, 2016,525:204-214.
[26]	Wang H F, Kavanagh R, Guo Y L, et al. Structural origin: water deactivates metal oxides to CO oxidation and promotes low- temperature CO oxidation with metals [J]. Angewandte Chemie, International Edition in English, 2012,51(27):6657-6661.
[27]	Grillo F, Natile M M, Glisenti A. Low temperature oxidation of carbon monoxide: the influence of water and oxygen on the reactivity of a Co3O4 powder surface [J]. Applied Catalysis B: Environmental, 2004,48(4):267-274.
[28]	赵福真.低浓度CO和甲苯催化燃烧消除催化剂制备及反应性能研究 [D]. 北京:北京化工大学, 2010. Zhao F Z, Preparation and performances of the catalyst applied to the catalytic combustion of low concentration CO and toluene [D]. Beijing: Beijing University of Chemical Technology, 2010.
[29]	张会平,彭冠兰,鄢瑛,等.CO在Cu-Mn催化剂上的催化氧化本征反应动力学 [J]. 华南理工大学学报(自然科学版), 2009,37(6):13- 16. Zhang H P, Peng G L, Yan Y, et al. Intrinsic reaction kinetics of catalytic oxidation of CO on Cu-Mn catalyst bed [J]. Journal of South China University of Technology (Natural Science Edition), 2009, 37(6):13-16.
[30]	Thormählen P, Fridell E, Cruise N, et al. The influence of CO2, C3H6, NO, H2, H2O or SO2 on the low-temperature oxidation of CO on a cobalt-aluminate spinel catalyst (Co1.66Al1.34O4) [J]. Applied Catalysis B: Environmental, 2001,31(1):1-12.