In situ DRIFTS combined with GC–MS to identify the catalytic oxidation process of dibenzofuran over activated carbon-supported transition metals oxide catalysts

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122492
Author(s):  
Yatao Yang ◽  
Xiaoxiao Ding ◽  
Kangkai Chang ◽  
Zequan Zeng ◽  
Yaqin Hou ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Transition Metals ◽  
Catalytic Oxidation ◽  
Oxidation Process ◽  
Oxide Catalysts ◽  
In Situ Drifts

Vapor-phase Oxidation of Cyclohexane over Supported Fe-Mn Catalysts: In-Situ DRIFTS studies

2021 ◽  
Author(s):  
Vijendra Kumar Yadav ◽  
Taraknath Das
Keyword(s):  
Surface Area ◽  
Raman Spectra ◽  
Vapor Phase ◽  
Oxide Catalysts ◽  
Incipient Wetness Impregnation ◽  
Impregnation Method ◽  
In Situ Drifts ◽  
Mn Oxide ◽  
Phase Oxidation

Alumina-supported Fe-Mn oxide catalysts were synthesized by the incipient wetness impregnation method. The catalysts were characterized by using various characterization techniques such as surface area, XRD, H2-TPR, and Raman spectra...

In situ DRIFTS studies on CuO-Fe2O3 catalysts for low temperature selective catalytic oxidation of ammonia to nitrogen

2017 ◽  
Vol 419 ◽  
pp. 733-743 ◽  
Author(s):  
Qiulin Zhang ◽  
Huimin Wang ◽  
Ping Ning ◽  
Zhongxian Song ◽  
Xin Liu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Catalytic Oxidation ◽  
In Situ Drifts ◽  
Selective Catalytic Oxidation ◽  
Oxidation Of Ammonia

In situ DRIFTS study on the catalytic oxidation of toluene over V2O5/TiO2 under mild conditions

2011 ◽  
Vol 14 (1) ◽  
pp. 77-81 ◽  
Author(s):  
Yunbing He ◽  
Zebao Rui ◽  
Hongbing Ji
Keyword(s):  
Catalytic Oxidation ◽  
In Situ Drifts ◽  
Mild Conditions

Treatment of UDMH Waste Water by Microwave Catalytic Oxidation Process

2013 ◽  
Vol 295-298 ◽  
pp. 1486-1489 ◽  
Author(s):  
Xiao Li Gou ◽  
Xiao Meng Lv ◽  
Hu Cui ◽  
Xia Li
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Catalytic Oxidation ◽  
Microwave Power ◽  
Degradation Rate ◽  
Oxidation Process ◽  
Irradiation Time

The paper give the method of microwave catalytic oxidation process to treat UDMH waste water. The effects of microwave power, irradiation time, H2O2 dosage and activated carbon dosage on the degradation rate of UDMH were examined. Under the conditions of microwave power 490W, irradiation time 9min, H2O2 dosage 1mL and activated carbon dosage 1g per 100ml UDMH sewage, the degradation rate of UDMH is over 97%. The method is effective by experiments, which will be the new way to treat the UDMH waste water.

Mechanistic and kinetic insight into catalytic oxidation process of heavy oil in in-situ combustion process using copper (Ⅱ) stearate as oil soluble catalyst

Fuel ◽  
2021 ◽  
Vol 284 ◽  
pp. 118981
Author(s):  
Chengdong Yuan ◽  
Dmitrii A. Emelianov ◽  
Mikhail A. Varfolomeev ◽  
Nikolay O. Rodionov ◽  
Muneer A. Suwaid ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Heavy Oil ◽  
Oxidation Process ◽  
Combustion Process ◽  
In Situ Combustion ◽  
Insight Into

Toluene oxidation process and proper mechanism over Co3O4 nanotubes: Investigation through in-situ DRIFTS combined with PTR-TOF-MS and quasi in-situ XPS

2020 ◽  
Vol 397 ◽  
pp. 125375 ◽  
Author(s):  
Jinping Zhong ◽  
Yikui Zeng ◽  
Mingyuan Zhang ◽  
Weihua Feng ◽  
Diran Xiao ◽  
...  
Keyword(s):  
Oxidation Process ◽  
Toluene Oxidation ◽  
In Situ Drifts ◽  
In Situ Xps ◽  
Tof Ms

scholarly journals Catalytic Oxidation of HCHO over the Sodium-Treated Sepiolite-Supported Rare Earth (La, Eu, Dy, and Tm) Oxide Catalysts

Catalysts ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 328 ◽  
Author(s):  
Ning Dong ◽  
Qing Ye ◽  
Mengyue Chen ◽  
Shuiyuan Cheng ◽  
Tianfang Kang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Catalytic Oxidation ◽  
Rare Earth Oxide ◽  
Catalytic Performance ◽  
Rare Earth Oxides ◽  
Hydroxyl Groups ◽  
In Situ Drifts ◽  
The Rare Earth

The sodium-treated sepiolite (NaSep)-supported rare earth oxide (RE/NaSep; RE = La, Eu, Dy, and Tm) samples were prepared using the rotary evaporation method. Physicochemical properties of these materials were characterized by XRD, SEM, BET, FTIR, XPS, H2–TPR, NH3–TPD, and in situ DRIFTS, and their catalytic activities for formaldehyde (HCHO) (2000 ppm) oxidation were evaluated. The results show that loading of the rare earth oxide on NaSep improved its catalytic performance. Among all the samples, Eu/NaSep performed the best, and complete HCHO conversion was achieved at a temperature of 150 °C and a gas hourly space velocity of 240,000 mL/(g h); a good catalytic activity was still maintained after 45 h of stability test. The catalytic oxidation mechanism of HCHO was studied using the in situ DRIFTS technique. As a result, the effective and stable catalytic performance of the Eu/NaSep sample was mainly due to the presence of hydroxyl groups on the sepiolite surface and the doped rare earth oxides, which contributed to its high performance. HCHO oxidation underwent via the steps of HCHO + O2 → HCOO− + OH− → H2O + CO2. It is concluded that the optimal catalytic activity of Eu/NaSep was associated with the highest Oads/Olatt atomic ratio, the largest amount of hydroxyl groups, the highest acidity, and the best reducibility. The present work may provide new insights into the application in the removal of high-concentration HCHO over the rare earth oxides supported on natural low-cost clays.

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