Glass - Back to the Future!

Presenting Author:
Mathieu Hubert

article posted 1 April 2016

Mathieu Hubert Mathieu Hubert received his MSc. degree in Materials Chemistry from the University of Rennes 1, France, in 2009 and a PhD in Materials Science and Engineering from the University of Rennes 1 and the University of Arizona (Tucson, AZ, USA) in 2012. His graduate research work was primarily on chalcogenide glass science, focused on the study and development of new glasses and glass-ceramics systems for infrared applications, as well as development of innovative, cheaper synthesis methods for this type of glasses. He joined in 2013 the independent glass research and technology company CelSian Glass & Solar in Eindhoven, The Netherlands, as process and materials technologist. His areas of research combine glass science and glass technology, as parts of projects for industrial glass companies worldwide, either in bilateral projects or in consortiums via the Glass Trend association. These research projects cover a large range of topics including batch optimization, glass melting, redox chemistry, fining and foaming of glass melts, strategies for increased energy efficiency and reduction of emissions, or development of sensors for better process control. M. Hubert is also concerned and active in education on glass, with a drive to support interactions between industry and academia. He joined in 2014 CelSian?s teacher team, giving regularly courses on glass technology to employees of the industry worldwide, and volunteers in many outreach and educational programs on glass and materials science.

Simulation of industrial glass melting process steps at the lab scale

Mathieu Hubert*, Penny Marson, Mathi Rongen

CelSian Glass & Solar B.V., Zwaanstraat 1, 5651CA Eindhoven, The Netherlands.

Industrial glass melting is a complex process, involving multiple reactions and steps for producing continuously a product with acceptable quality. Simulating the industrial glass making process at the lab scale is a complex task, and several aspects such as the impact of convection patterns or interactions between combustion systems (flames or electrodes in the melt) and the glass melt cannot be exactly reproduced. However, it is possible to replicate some of the important steps, allowing for a better understanding of the glass-making process and for their improvement and optimization.

In this paper, several experimental setups that have been developed for the simulation of essential glass making process steps are presented such as High Temperature Melting Observation System combined with Evolved Gas Analysis (HTMOS-EGA, see Figure 1), which allows to monitor the melting and foaming behavior of industrial batches is simulated combustion atmosphere. Other tools developed for studying notably the impact of flue gas chemistry on regenerators refractory corrosion, or evaporation from industrial glass melts, will also be presented.