Further Developments in Long-Lasting Ceramic Heat Transfer Media for RTO’s, 2002 Environmental Conference Proceedings
J. S. Reid and C. C. Vaught
The life of the ceramic heat exchange media is the most critical factor for economic operation of regenerative thermal oxidation devices (RTOs) for the removal of volatile organic compounds (VOCs). This paper addresses some of the key considerations in selecting the best ceramic media for specific RTO applications. The mid-life and post-mortem analyses of ceramic media from a number of RTO units, primarily in the OSB industry, have revealed the failure mechanisms and rates as it relates to the microstructure, chemical, and physical properties of the ceramic materials. These studies have led to the development of new ceramic materials offering improved thermal-corrosion resistance, which enables much longer projected worry-free RTO operation. These and other recent product developments in ceramic media are presented.