The Regularities of Change of Organic Compounds Oxidation Activation Energy in Aqueous Medium Under Supercritical Fluid Conditions
Year: 2020
Type: article
Abstract: The regularities of changes in the activation energy as a function of reduced state parameters, characteristics of the molecular field (dielectric constant, polarity) of the oxidized reactant and the oxidation reaction medium of saturated monohydric alcohols and acids in an aqueous medium under supercritical fluid conditions are revealed.A generalized dependence is obtained for the activation energy as a function of the difference between the polarities of the oxidizable reagent and the reaction medium, which describes the literature data with an acceptable error of ± 25%.The capabilities of the method are confirmed by studies of the kinetics of the oleic acid oxidation by hydrogen peroxide in an aqueous medium under supercritical fluid conditions in the temperature range 673-723К and a pressure of 29.4 MPa.The reaction rate constant and activation energy are determined.The activation energy of the oleic acid oxidation reaction by hydrogen peroxide in an aqueous medium under supercritical fluid conditions Ea = -104.8kJ*mol-1 differs by no more than 11%.
Author: Zufar Ibragimovich Zaripov
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: G2934504215, G4836867806
OpenAlex ID: W3004768928