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Kinetics and mechanism of methane oxidation in supercritical water. [HAZWRAP]

Technical Report ·
OSTI ID:6647850
;
This project, is a Hazardous Waste Remedial Actions Program (HAZWRAP) Research and Development task being carried out by the Los Alamos National Laboratory. Its objective is to achieve an understanding of the technology for use in scaling up and applying oxidation in supercritical water as a viable process for treating a variety of Department of Energy Defense Programs (DOE-DP) waste streams. This report presents experimental results for the kinetics of the oxidation of methane and methanol in supercritical water and computer modeling results for the oxidation of carbonmonoxide and methane in supercritical water. The experimental and modeling results obtained to date on these one-carbon model compounds indicate that the mechanism of oxidation in supercritical water can be represented by free-radical reactions with appropriate modifications for high pressure and the high water concentration. If these current trends are sustained, a large body of existing literature data on the kinetics of elementary reactions can be utilized to predict the behavior of other compounds and their mixtures. 7 refs., 4 figs., 3 tabs.
Research Organization:
Los Alamos National Lab., NM (USA); Oak Ridge National Lab., TN (USA)
DOE Contract Number:
W-7405-ENG-36; AC05-84OR21400
OSTI ID:
6647850
Report Number(s):
DOE/HWP-64; LA-11439-MS; ON: DE89004294
Country of Publication:
United States
Language:
English

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Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALCOHOLS
ALKANES
BIOCHEMICAL REACTION KINETICS
CHEMICAL EFFLUENTS
CHEMICAL REACTIONS
FORECASTING
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
KINETICS
MANAGEMENT
METHANE
METHANOL
ORGANIC COMPOUNDS
ORGANIC WASTES
OXIDATION
OXYGEN COMPOUNDS
REACTION KINETICS
SUPERCRITICAL STATE
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER