Evaluation of the lifetime of excited molecules of formaldehyde formed in the reaction of gas-phase low-temperature oxidation of acetaldehyde

1965 ◽  
Vol 14 (11) ◽  
pp. 1905-1909
Author(s):  
L. M. Postnikov ◽  
V. Ya. Shlyapintokh ◽  
M. N. Shumilina
Keyword(s):  
Low Temperature ◽  
Gas Phase ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Excited Molecules

scholarly journals The Sensitizing Effects of NOx on Methane Low-temperature Oxidation in a Jet Stirred Reactor

2018 ◽  
Vol 6 ◽  
Author(s):  
Lorena Marrodán Bretón ◽  
Yu Song ◽  
Nicolas Vin ◽  
Olivier Herbinet ◽  
Emmanuel Assaf ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Anaerobic Digestion ◽  
Low Temperature ◽  
Gas Phase ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
The Past ◽  
Oxidation Of Methane ◽  
Stirred Reactor

Biogas (mainly methane and carbon dioxide) produced from biomass anaerobic digestion is considered as a potential renewable gas-phase fuel. That is why the study of the mutual effects of CH4/NOx have attracted considerable attention in the past decade. In this work, the oxidation of methane with and without NOx addition has been investigated in a jet-stirred reactor.

Low-temperature oxidation of 2-butene in the gas phase

1968 ◽  
Vol 90 (25) ◽  
pp. 7176-7178 ◽  
Author(s):  
D. J. M. Ray ◽  
David J. Waddington
Keyword(s):  
Low Temperature ◽  
Gas Phase ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation

On the low-temperature oxidation of isobutane and propylene

1955 ◽  
Vol 8 (3) ◽  
pp. 370 ◽  
Author(s):  
JJ Batten ◽  
MJ Ridge
Keyword(s):  
Low Temperature ◽  
Induction Period ◽  
Gas Phase ◽  
Early Stage ◽  
Reaction Vessel ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Alkyl Hydroperoxides ◽  
Active Intermediate

The low-temperature oxidation of isobutane and propylene has been studied by interrupting the reaction by withdrawing the partly reacted mixture from the reaction vessel. After treatment designed to destroy peroxides the mixture was returned to the reaction vessel. The results show that the termination of the induction period is due to the accumulation of an active intermediate or intermediates in the gas phase. In both systems these intermediates are probably not alkyl hydroperoxides. �� Changes in the surface of the reaction vessel brought about by processes occurring in the early stage. of the reaction do not contribute to the termination of the induction period.

scholarly journals Influence of Co-Precipitation Agent on the Structure, Texture and Catalytic Activity of Au-CeO2 Catalysts in Low-Temperature Oxidation of Benzyl Alcohol

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 641
Author(s):  
Lukasz Wolski ◽  
Grzegorz Nowaczyk ◽  
Stefan Jurga ◽  
Maria Ziolek
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Low Temperature ◽  
Benzyl Alcohol ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Oxidation Of Benzyl Alcohol ◽  
Key Factor ◽  
Au Particle Size ◽  
Co Precipitation

The aim of the study was to establish the influence of a co-precipitation agent (i.e., NaOH–immediate precipitation; hexamethylenetetramine/urea–gradual precipitation and growth of nanostructures) on the properties and catalytic activity of as-synthesized Au-CeO2 nanocomposites. All catalysts were fully characterized with the use of XRD, nitrogen physisorption, ICP-OES, SEM, HR-TEM, UV-vis, XPS, and tested in low-temperature oxidation of benzyl alcohol as a model oxidation reaction. The results obtained in this study indicated that the type of co-precipitation agent has a significant impact on the growth of gold species. Immediate co-precipitation of Au-CeO2 nanostructures with the use of NaOH allowed obtainment of considerably smaller and more homogeneous in size gold nanoparticles than those formed by gradual co-precipitation and growth of Au-CeO2 nanostructures in the presence of hexamethylenetetramine or urea. In the catalytic tests, it was established that the key factor promoting high activity in low-temperature oxidation of benzyl alcohol was size of gold nanoparticles. The highest conversion of the alcohol was observed for the catalyst containing the smallest Au particle size (i.e., Au-CeO2 nanocomposite prepared with the use of NaOH as a co-precipitation agent).

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