Skip to Content
Find More Like This
Return to Search

Method and Composition for Protection of Refractory Materials in Aggressive Environments

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A method and composition are disclosed that provide protection of refractory materials used, e.g., in kiln and slagging coal-gasifier operations. Inert high-temperature melting crystalline compounds and glasses are used to fill defects on the surface and/or interior of the refractory material. At the operation temperatures, the inert crystalline compound mixes with slag and increases the viscosity and melting point temperature, reducing the ability of the slag to penetrate into the refractory, which minimizes breakdown of the refractory material. The same scheme can potentially be applied to sealing of geological formations, e.g., for CO.sub.2 sequestration, and repairing of engineering materials currently in service while continuing to operate in aggressive environments.
Matyas, Josef (Richland, WA), Sundaram, S. Kamakshi (Richland, WA)
12/ 535,006
August 4, 2009
[0001] This invention was made with Government support under Contract DE-AC0576RLO-1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.