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Catalytic wet air oxidation of coke-plant wastewater on ruthenium-based eggshell catalysts in a bubbling bed reactor
Yang, M.; Sun, Y.; Xu, A. H.; Lu, X. Y.; Du, H. Z.; Sun, C. L.; Li, C.; Sun CL(孙承林); Sun CL(孙承林)
关键词Catalytic Wet Air Oxidation Ru Catalysts Bubbling Bed Reactor Eggshell Catalyst Coke-plant Wastewater
刊名BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
2007-07-01
DOI10.1007/s00128-007-9150-6
79期:1页:66-70
收录类别SCI
文章类型Article
部门归属9,5
项目归属902,503
WOS标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Environmental Sciences ; Toxicology
研究领域[WOS]Environmental Sciences & Ecology ; Toxicology
关键词[WOS]ORGANIC-COMPOUNDS ; REMOVAL ; PHENOL
英文摘要Catalytic wet air of coke-plant wastewater was studied in a bubbling bed reactor. Two types of supported Ru-based catalysts, eggshell and uniform catalysts, were employed. Compared with the results in the wet air oxidation of coke-plant wastewater, supported Ru uniform catalysts showed high activity for chemical oxygen demand (COD) and ammonia/ammonium compounds (NH3-N) removal at temperature of 250 degrees C and pressure of 4.8 MPa, and it has been demonstrated that the catalytic activity of uniform catalyst depended strongly on the distribution of active sites of Ru on catalyst. Compared to the corresponding uniform catalysts with the same Ru loading (0.25wt.% and 0.1wt.%, respectively), the eggshell catalysts showed higher activities for CODcr removal and much higher activities for NH3-N degradation. The high activity of eggshell catalyst for treatment of coke-plant wastewater can be attributed to the higher density of active Ru sites in the shell layer than that of the corresponding uniform catalyst with the same Ru loading. It has been also evidenced that the active Ru sites in the internal core of uniform catalyst have very little or no contribution to CODcr and NH3-N removal in the total oxidation of coke-plant wastewater.
语种英语
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WOS记录号WOS:000248910900015
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/99149
专题中国科学院大连化学物理研究所
通讯作者Sun CL(孙承林); Sun CL(孙承林)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Grp 902, Dalian 116023, Peoples R China
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GB/T 7714
Yang, M.,Sun, Y.,Xu, A. H.,et al. Catalytic wet air oxidation of coke-plant wastewater on ruthenium-based eggshell catalysts in a bubbling bed reactor[J]. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,2007,79(1):66-70.
APA Yang, M..,Sun, Y..,Xu, A. H..,Lu, X. Y..,Du, H. Z..,...&孙承林.(2007).Catalytic wet air oxidation of coke-plant wastewater on ruthenium-based eggshell catalysts in a bubbling bed reactor.BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,79(1),66-70.
MLA Yang, M.,et al."Catalytic wet air oxidation of coke-plant wastewater on ruthenium-based eggshell catalysts in a bubbling bed reactor".BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 79.1(2007):66-70.
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