MELTING OF GLASS BATCH - MODEL FOR MULTIPLE OVERLAPPING GAS-EVOLVING REACTIONS

Journal Article · Tue Feb 07 00:00:00 EST 2012 · Pre-Publication to Journal of Thermal Analysis and Calorimetry

OSTI ID:1035192

AA, KRUGER; DA, PIERCE; R, POKORNY; PR, HRMA

In this study, we present a model for the kinetics of multiple overlapping reactions. Mathematical representation of the kinetics of gas-evolving reactions is crucial for the modeling of the feed-to-glass conversion in a waste-glass melter. The model simulates multiple gas-evolving reactions that occur during heating of a high-alumina high-level waste melter feed. To obtain satisfactory kinetic parameters, we employed Kissinger's method combined with least-squares analysis. The power-law kinetics with variable reaction order sufficed for obtaining excellent agreement with measured thermogravimetric analysis data.

• Research Organization: Hanford Site (HNF), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Environmental Management (EM)
• DOE Contract Number: DE-AC27-08RV14800
• OSTI ID: 1035192
• Report Number(s): ORP-51803 Rev 0; TRN: US201204%%503
• Journal Information: Pre-Publication to Journal of Thermal Analysis and Calorimetry, Journal Name: Pre-Publication to Journal of Thermal Analysis and Calorimetry
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GLASS
HEATING
KINETICS
MELTING
REACTION KINETICS
SIMULATION
THERMAL GRAVIMETRIC ANALYSIS
WASTES