Catalytic wet air oxidation of high-concentration organic pollutants by upflow packed-bed reactor using a Ru-Ce catalyst derived from a Ru-3(CO)(12) precursor | |
Department | ERC国家工程研究中心 |
Yu CY(于超英); Meng X(孟旭); Chen GX(陈革新); Zhao PQ(赵培庆); Zhao PQ(赵培庆) | |
The second department | osso国家重点实验室 |
2016 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 6Issue:27Pages:22633-22638 |
Abstract | Low loading catalysts Ru/γ-Al2O3 and Ru–Ce/γ-Al2O3 (Ru: 0.3 wt%) were prepared by thermolysis of Ru3(CO)12, which exhibited high activity in Catalytic Wet Air Oxidation (CWAO) of high concentration organic pollutants by upflow packed-bed reactor with initial COD 200000 mg L−1. XPS results revealed that two new Ru species (RuA and RuB) were detected due to the chemical interaction between Ru3(CO)12 and the active OH groups on the surface of Al2O3 during the process of Ru3(CO)12 incomplete decomposition, and the reduction of them can lead to more dispersed metallic phases. The TPR spectrum reveals that the catalyst with addition of Ce produced a strong interaction between Ru and the CeO2–Al2O3 support, which was helpful for the catalytic wet air oxidation. Low loading catalyst Ru–Ce/γ-Al2O3 reduced in H2 had the highest activity and the COD removal reached 99.5% above 245 °C. The operating parameters investigated included temperature, reactor pressure, gas flow rate and liquid hourly space velocity (LHSV). The results showed that the COD removal is considerably affected by the temperature; when temperature increased around 2–3 °C, COD removal was improved about 40% due to the obvious exothermic reaction. The experimental results indicated that the 0.3 wt% Ru–Ce/γ-Al2O3 catalyst has excellent activity and stability in the CWAO of high concentration organic pollutants in as packed-bed reactor during 100 hours. |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1039/c5ra27723j |
Funding Organization | the Natural Science Foundation of China, No. 21307139 |
Indexed By | SCI |
If | 3.108 |
Language | 英语 |
Funding Project | 催化新工艺研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19773 |
Collection | 精细石油化工中间体国家工程研究中心(ERC) 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Zhao PQ(赵培庆) |
Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Yu CY,Meng X,Chen GX,et al. Catalytic wet air oxidation of high-concentration organic pollutants by upflow packed-bed reactor using a Ru-Ce catalyst derived from a Ru-3(CO)(12) precursor[J]. RSC Advances,2016,6(27):22633-22638. |
APA | Yu CY,Meng X,Chen GX,Zhao PQ,&赵培庆.(2016).Catalytic wet air oxidation of high-concentration organic pollutants by upflow packed-bed reactor using a Ru-Ce catalyst derived from a Ru-3(CO)(12) precursor.RSC Advances,6(27),22633-22638. |
MLA | Yu CY,et al."Catalytic wet air oxidation of high-concentration organic pollutants by upflow packed-bed reactor using a Ru-Ce catalyst derived from a Ru-3(CO)(12) precursor".RSC Advances 6.27(2016):22633-22638. |
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