Kinetic modelling of heterogeneous catalytic oxidation of furfural with hydrogen peroxide to succinic acid

2020 ◽  
Vol 382 ◽  
pp. 122811 ◽  
Author(s):  
Dmitry Yu. Murzin ◽  
Farhan Saleem ◽  
Johan Warnå ◽  
Tapio Salmi
Keyword(s):  
Hydrogen Peroxide ◽  
Succinic Acid ◽  
Catalytic Oxidation ◽  
Kinetic Modelling ◽  
Heterogeneous Catalytic

scholarly journals Heterogeneous Catalytic Oxidation of Furfural with Hydrogen Peroxide over Sulfated Zirconia

2020 ◽  
Vol 59 (30) ◽  
pp. 13516-13527
Author(s):  
Dmitry Yu. Murzin ◽  
Emilie Bertrand ◽  
Pasi Tolvanen ◽  
Sergey Devyatkov ◽  
Jani Rahkila ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Oxidation ◽  
Sulfated Zirconia ◽  
Heterogeneous Catalytic

Hydrogen peroxide/iron oxide-induced catalytic oxidation of organic compounds

2001 ◽  
Vol 1 (4) ◽  
pp. 131-138
Author(s):  
M.D. Gurol ◽  
S-S. Lin
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Oxide ◽  
Catalytic Oxidation ◽  
Organic Compounds ◽  
Oxidation Rate ◽  
Oxide Surface ◽  
Iron Oxide Particles ◽  
Heterogeneous Catalytic ◽  
Preferential Adsorption ◽  
Oxidation Of Organic Compounds

This paper describes a novel heterogeneous catalytic oxidation process involving the use of hydrogen peroxide ( H2O2) with granular size iron oxide particles (FeOOH) in aqueous phase. The generation of hydroxyl radical (OH•) in the process is demonstrated through the use of a probe chemical, n-chlorobutane (BuCl). Based on the experimental evidence, it is concluded that the OH•, which is produced through the interaction of H2O2 with the surface sites, reacts with solutes adsorbed on the iron oxide surface, causing oxidation of the organic compounds. The generation rate of OH• increases slightly with increasing pH in the range of 5-9. The oxidation rate of BuCl by OH• is relatively insensitive to the pH and the level of bicarbonate ion in subject water due to low affinity of bicarbonate for the surface. Phosphate, on the other hand, inhibits the oxidation rate by preferential adsorption on the surface. This new process provides a viable alternative to the existing oxidation technologies, especially when water has high alkalinity and/or it is desired to oxidize target compounds that have high affinity for the surface selectively.

Heterogeneous catalytic oxidation of hypophosphite by H2O2: pH effect

2007 ◽  
Vol 55 (12) ◽  
pp. 89-93 ◽  
Author(s):  
C.-C. Hung ◽  
Y.-H. Huang ◽  
C.-Y. Chen
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Oxide ◽  
Catalytic Oxidation ◽  
Organic Contaminants ◽  
Oxide Catalyst ◽  
Removal Rate ◽  
Ph Effect ◽  
Fluidised Bed ◽  
Heterogeneous Catalytic ◽  
Iron Oxide Catalyst

Phosphorus chemicals control key aspects of eutrophication and other environmental process. Hypophosphite (HP) originating from manmade and natural sources was evidenced as present in the environment and was investigated rarely. Recently, iron oxide has been used as a catalyst for oxidising organic contaminants with hydrogen peroxide (i.e. heterogeneous Fenton-like reaction). This study focused mainly on the oxidation of 1.0 mM HP by hydrogen peroxide in the presence of a novel iron oxide catalyst (B1 catalyst) which was prepared through a fluidised-bed Fenton reactor (FBR-Fenton). The background experiments including the oxidation experiment of HP by air only, by H2O2 only and adsorption of HP by B1 catalyst were first elucidated. It was found that HP could not be oxidised at all by air and H2O2 at pH 2.5–12 in 24 hours. On the other hand, it could be adsorbed by B1 catalyst with 89.8% removal at pH 2.5 in 5 hours and complete desorption at pH 11.0. Then, we investigated the effects of pH and Fe leaching from the catalyst on the oxidative efficiency of HP. We found that although the removal rate of HP at pH 2.5 is faster than that at pH 4.0, B1 catalyst has a higher HP oxidation efficiency at pH 4.0 than that at pH 2.5. We conclude that it is a major heterogeneous catalytic oxidation by our novel iron oxide catalyst to oxidise HP at pH 4.0. Also, B1 could be a useful and potential catalyst for the treatment of HP wastewater.

Hydrogen Peroxide/Iron Oxide -Induced Catalytic Oxidation of Organic Compounds

2002 ◽  
Vol 5 (2) ◽  
Author(s):  
Mirat D. Gurol ◽  
Shu-Sung Lin
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Oxide ◽  
Catalytic Oxidation ◽  
Organic Compounds ◽  
Oxidation Process ◽  
Heterogeneous Catalytic ◽  
Oxidation Of Organic Compounds

AbstractThis paper describes a novel heterogeneous catalytic oxidation process involving the use of hydrogen peroxide (H

Hydrogen peroxide decomposition on a two-component CuO-Cr2O3 catalyst

1988 ◽  
Vol 53 (8) ◽  
pp. 1636-1646 ◽  
Author(s):  
Viliam Múčka ◽  
Kamil Lang
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Activity ◽  
Extreme Values ◽  
Catalytic Properties ◽  
Active Components ◽  
Catalytic Systems ◽  
Heterogeneous Catalytic ◽  
Peroxide Decomposition ◽  
Two Component ◽  
Catalytically Active

Some physical and catalytic properties of the two-component copper(II)oxide-chromium(III)oxide catalyst with different content of both components were studied using the decomposition of the aqueous solution of hydrogen peroxide as a testing reaction. It has been found that along to both basic components, the system under study contains also the spinel structure CuCr2O4, chromate washable by water and hexavalent ions of chromium unwashable by water. The soluble chromate is catalytically active. During the first period of the reaction the equilibrium is being established in both homogeneous and heterogeneous catalytic systems. The catalytic activity as well as the specific surface area of the washed solid is a non-monotonous function of its composition. It seems highly probable that the extreme values of both these quantities are not connected with the detected admixtures in the catalytic system. The system under study is very insensitive with regard to the applied doses of gamma radiation. Its catalytic properties are changed rather significantly after the thermal treatment and particularly after the partial reduction to low degree by hydrogen. The observed changes of the catalytic activity of the system under study are very probably in connection with the changes of the valence state of the catalytically active components of the catalyst.

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