Kinetic Studies of Methanol Oxidation in Supercritical Water and Carbon Dioxide

Chemical Reactions of C1 Compounds in Near-Critical and Supercritical Water

“…This means that even if water took part in an elementary reaction as a reaction partner, that water would be seen only as a collision partner. Consequently, these models should also be suitable for the calculation of CH 3 OH oxidation in supercritical CO 2 , which was reported by Kruse et al . The most striking omission of the above models from gas-phase models is the neglect of the HCOOH formation and degradation.…”

“…The most striking omission of the above models from gas-phase models is the neglect of the HCOOH formation and degradation. The formation of HCOOH is not observed in gas-phase oxidation but is observed in SCWO …”

“…Figure shows the main reaction pathways calculated by Ederer and Mas 19 and Kruse et al using the model of Brock et al at two different reaction times, that is, 30 s (Figure a) and 100 s (Figure b), at 380 °C and 25 MPa. The CO oxidation shown in Figure is part of this reaction chain.…”

Water – A magic solvent for biomass conversion

“…The effect of pressure can be considered by calculation: The reactions of small free radicals at increased pressures are faster because of higher collision numbers leading to a better energy nivellation [122]. To consider this, the reaction rate coefficient can be set to the so-called high-pressure limit [123,124]. By doing so, the reaction rate of the measured water-gas shift reaction was still very high.…”

Potential of Pollutant Treatment by Combined Extraction and Oxidation with Supercritical Carbon Dioxide

“…Another option is the decomposition of organic matter by indirect electric oxidation, which can also be coupled with extraction [2]. The setup was used to study the oxidation of various model substances and their mixtures [4]. 1 shows the flow sheet of the experimental device in which the decomposition of model substances representing pollutants was studied by oxidation in CO 2 in an excess of airborne oxygen.…”