Supercritical Water Oxidation Studies: Understanding the Chemistry and Electrochemistry of SCWO Systems.
Abstract
SuperCritical Water Oxidation (SCWO) is being actively developed as a means of destroying highly toxic organic waste and as a way of reducing the volume of low-level nuclear waste. The technology employs water at temperatures above the critical temperature (374.15K) as the reaction medium as well as high partial pressures of oxygen or high concentrations of hydrogen peroxide. These conditions lead to extraordinarily high corrosion rates within + or -50 deg C of Tc, which can be characterized in terms of the pM and redox potential of the medium. In this report, techniques that have been developed under ARO sponsorship for measuring pM, redox potential, O2, H2, and corrosion activity at high subcritical and at supercritical temperatures are described. We show that measurement of many important chemistry and corrosion parameters is technically developed in this study will allow for in close control of the reaction medium.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1997
- Accession Number
- ADA325537
Entities
People
- Digby D. Macdonald
- Heidi Arthur
- Keith Eklund
- Nobuyoshi Hara
- Ritwik Biswas
Organizations
- Pennsylvania State University