Dual functional Fe/AC for treating phenol solutions by adsorption coupled with dry catalytic oxidation technology

2019 ◽  
Vol 165 ◽  
pp. 148-162
Author(s):  
Bingzheng Li ◽  
Huiyuan Wu ◽  
Chan Zhang ◽  
Wei Zheng ◽  
Dekui Sun ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Dual Functional ◽  
Oxidation Technology

The Study on the Treatment of Nitrobenzene Wastewater by Heterogenious Catalysts and Electrode Oxidation

2013 ◽  
Vol 668 ◽  
pp. 140-144
Author(s):  
Su Leng ◽  
Rui Yang Chen ◽  
Song Yue Chen ◽  
Miao Liu
Keyword(s):  
Catalytic Oxidation ◽  
Catalytic Properties ◽  
Ph Value ◽  
Removal Rate ◽  
The Self ◽  
Electrolysis Time ◽  
Oxidation Technology ◽  
Electro Catalytic Oxidation ◽  
La Doped ◽  
Reaction Speed

In the paper, the PbO2-Ti electrodes were characterized by SEM, and introduce the self-made catalyst Fe3+/TiO2 into the electrolytic system to treat the nitrobenzene wastewater, in order to improve the reaction speed and the removal rate of COD and NB and form heterogeneous electro-catalytic oxidation technology. In order to confirm the best removal efficiency of COD and NB, the experiment will study the electrolysis time, current intensity, pH value, and the amount of catalyst. The experimental results showed that the surface of La-doped electrode was dense and had good electro-catalytic properties.

scholarly journals Direct Selective Oxidation of Hydrogen Sulfide: Laboratory, Pilot and Industrial Tests

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1109
Author(s):  
Sergei Khairulin ◽  
Mikhail Kerzhentsev ◽  
Anton Salnikov ◽  
Zinfer R. Ismagilov
Keyword(s):  
Hydrogen Sulfide ◽  
Catalytic Oxidation ◽  
Elemental Sulfur ◽  
Industrial Testing ◽  
Catalytic Systems ◽  
Claus Process ◽  
Oxidation Of Hydrogen ◽  
Oxidation Technology ◽  
Scientific Results ◽  
Physical And Chemical

This article is devoted to scientific and technical aspects of the direct catalytic oxidation of hydrogen sulfide for the production of elemental sulfur. It includes a detailed description of the Claus process as the main reference technology for hydrogen sulfide processing methods. An overview of modern catalytic systems for direct catalytic oxidation technology and known processes is presented. Descriptions of the scientific results of the Institute of Catalysis of the SB RAS in a study of the physical and chemical foundations of the process and the creation of a catalyst for it are included. The Boreskov Institute of Catalysis SB RAS technologies based on fundamental studies and their pilot and industrial testing results are described.

Catalytic Destruction and Removal of Dichloromethane in the Microwave/Fe4O3 System

2013 ◽  
Vol 395-396 ◽  
pp. 595-600
Author(s):  
Ching Hsing Lin ◽  
Yung Hsu Hsieh ◽  
Chen Yu Chang
Keyword(s):  
Catalytic Oxidation ◽  
Thermal Destruction ◽  
New Technology ◽  
Packed Column ◽  
Reaction Chamber ◽  
Microwave Oven ◽  
Industrial Emissions ◽  
Catalytic Destruction ◽  
Volatile Organic ◽  
Oxidation Technology

In this study, a new catalytic oxidation technology, microwave/Fe3O4 system, was used to treat volatile organic carbons (VOCs) and dichloromethane (DCM) was selected to simulate industrial emissions of VOCs. This system comprises a household microwave oven modified as the reaction chamber, which was fitted with a vertical, cylindrical quartz reactor comprising a catalytic packed column filled with granular Fe3O4, a microwave catalyst of iron (II, III) oxide. Experimental results showed that the destruction and removal efficiency (DRE) of DCM by microwave alone was close to zero, but with the microwave/Fe3O4 system, the temperature of the catalytic packed column increased rapidly and reached thermal balance within 10-15 min. Analysis of the rear gas after combustion showed that most of DCM was thermal oxidized into CO2 and H2O. The successful application of the proposed microwave/Fe3O4 system to thermal destruction of DCM promises a new technology for treatment of VOCs.

Recent Advances in the Preparation and Catalytic Performance of Mn-based Oxide Catalysts with Special Morphology for the Removal of Air Pollutants

2021 ◽  
Author(s):  
Chao Peng ◽  
Di Yu ◽  
Lanyi Wang ◽  
Xuehua Yu ◽  
Zhen Zhao
Keyword(s):  
Environmental Pollution ◽  
Human Health ◽  
Catalytic Oxidation ◽  
Air Pollutants ◽  
Catalytic Performance ◽  
Oxide Catalysts ◽  
Recent Advances ◽  
Air Pollutions ◽  
Special Morphology ◽  
Oxidation Technology

Air pollutants result in serious environmental pollution and cause harm to human health, which has led to air pollutions gaining attention. At present, the catalytic oxidation technology is one of...

A review of confined-structure catalysts in catalytic oxidation of VOCs：Synthesis, Characterization, and Applications

2021 ◽  
Author(s):  
Xueqian Wu ◽  
Rui Han ◽  
Qingling Liu ◽  
Yun Su ◽  
Shuangchun Lu ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Human Body ◽  
Rapid Development ◽  
Oxidation Technology ◽  
Confined Structure

With the rapid development of industry, VOCs emissions harmful to the human body and the environment have also increased rapidly. At present, catalytic oxidation technology is regarded as one of...

Evaluation of the Nano-Confined Catalytic Oxidation Technology for Air Purification and Odor Reduction

2012 ◽  
Vol 550-553 ◽  
pp. 607-615 ◽  
Author(s):  
Amy Leung ◽  
Ezra Kwok
Keyword(s):  
Catalytic Oxidation ◽  
Air Purification ◽  
Air Cleaning ◽  
Novel Technology ◽  
Before And After ◽  
Air Purifier ◽  
Simple Filtration ◽  
Oxidation Technology ◽  
Cleaning Methods

Air pollution has a significant impact of human health. As modern individuals spend most of the day in tightly insulated buildings, there is a strong need for strategies to improve the quality of indoor air. A number of air cleaning methods ranging from simple filtration to photonic technologies have been used in commercial and residential air purifiers. Recently, a novel technology called Nano-Confined Catalytic Oxidation (NCCO) has been developed. In this study, the potential of NCCO versus two other commonly-used air purifiers to reduce odor nuisances caused by ammonia, toluene and hydrogen sulfide is evaluated. Twenty volunteers are asked to evaluate the odor levels before and after air purification, in a safe, controlled environment. The changes in odorant concentrations are also measured. The findings suggest that the NCCO-based air purifier outperforms the two other common residential air purifiers.

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