Topic
Wet oxidation
About: Wet oxidation is a research topic. Over the lifetime, 3094 publications have been published within this topic receiving 61536 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: Information is collected on the production of valuable chemicals by thermal hydrolysis and wet oxidation and on their main features, which seem to be more suitable for yielding higher amounts of acid than diluted, undigested and primary ones.
100 citations
TL;DR: In this article, a coprecipitation method was used to synthesize catalytic wet oxidation of phenol in aqueous solutions, and the three most important synthesis parameters, the concentration of the mixed metal salt solution, the rate of cop-recipitant addition and the stirrer speed during coprecipient, were optimized with central composite design using the catalytic activity as a response function.
99 citations
TL;DR: The surface heterogeneity of the carbon created upon oxidation was found to be a determinant in the adsorption capability of the modified adsorbents, as well as in the rate of paracetamol removal as mentioned in this paper.
99 citations
TL;DR: The use of PILC as heterogenous catalysts in wastewater treatment technologies, particularly advanced oxidation processes (AOPs), is gaining popularity for the treatment of refractory wastewater effluents as mentioned in this paper.
Abstract: The use of pillared interlayered clays (PILCs) as heterogenous catalysts in wastewater treatment technologies, particularly advanced oxidation processes (AOPs), is gaining popularity for the treatment of refractory wastewater effluents The recent literature involving these solid materials is reviewed, with more focus on studies that aim at reducing the synthesis costs and escalating the synthesis process to industrial scale Their role as active solid materials in the AOPs such as photocatalysis, catalytic wet peroxide oxidation (CWPO), the Fenton process and catalytic wet air oxidation (CWAO) of refractory organic compounds in polluted aqueous streams is also reviewed These processes are evaluated to evidence their main direction for future research, particularly with reference to possible industrial use of these technologies to treat refractory organic wastewater using pillared clay-based catalysts The pillared clay catalysts demonstrate good application prospects for the removal of refractory wastewater effluents using AOP technology The reviewed studies suggest that the photocatalytic process is useful in low concentrations of these compounds, while CWPO, the Fenton process and CWAO are recommended for higher concentrations However, catalyst development to reduce the severity of oxidation reaction conditions, with focus on the low cost, catalyst stability, reusability and environmental friendliness are the key aspects to be addressed by future research work
99 citations
TL;DR: In this paper, the influence of Cu substitution on physicochemical properties of LaCo1−xCuxO3 (x = 0, 0.1, and 0.2) was investigated by the sol−gel method, to clarify the relation between perovskite properties and their catalytic behaviors in catalytic wet aerobic oxidation (CWAO) of lignin.
Abstract: The aim of the present work was to investigate the influence of Cu substitution on the physicochemical properties of LaCo1−xCuxO3 (x = 0, 0.1, and 0.2) prepared by the sol−gel method, to clarify the relation between perovskite properties and their catalytic behaviors in the catalytic wet aerobic oxidation (CWAO) of lignin. X-ray diffraction (XRD), temperature-programmed reduction of H2 (H2-TPR), and X-ray photoelectron spectroscopy (XPS) indicated that Cu and Co were finely dispersed on the perovskite framework of the samples and an interaction between the Cu2+ and Co3+ sites in the perovskite lattice occurred. The percentages of surface chemisorbed oxygen species were 64.2, 75.2, and 81.1%, when x = 0, 0.1, and 0.2, respectively, obtained from O 1s XPS, indicating that the content of chemisorbed oxygen was improved with the increased content of Cu2+ in the mixed oxides. The samples were applied to the CWAO of lignin, and the experiments illustrated that the catalyst activity improved with an increase in ...
98 citations