A gas recovery system from The Netherlands-based company HyGear, is currently being tested at a Saint-Gobain Glass facility in Herzogenrath, Germany, for reliability and performance.

The Hy.REC® system has been designed to recover used hydrogen-nitrogen (H2-N2) gas mixtures so it can be reused in the glass production process.

The gas recovery system has been developed to recover the gas mixtures from the tin bath in float glass production and metal industries. It feeds the polluted, unutilised gas mixture emitted from industrial processes, back through the system and recovers a significant fraction of the H2 and N2 to be reused as a new reductive gas mixture.

The HyREC®mix has been designed to consume the lowest possible amount of electricity to enable the highest possible economical rate of return. Essential to this post-treatment module is the advanced temperature swing adsorption (TSA) with ultralow pressure drop, which seeks to further reduce operational expenses.

Saint-Gobain has provided us with valuable input during the design phase of the Hy.REC. Their feedback on the system performance is also of great relevance for the further improvement of the system.

The system works by firstly removing any dust and contaminants from the gaseous mixture. Next, the sulphur and oxygen (O2) are removed from the main stream before the TSA drys the H2-N2 stream. As an added option, the customer’s waste heat can be used for the regeneration phase to increase the energy efficiency even further.

Niels Lanser, Sales Director at HyGear, signified, “Saint-Gobain has provided us with valuable input during the design phase of the Hy.REC. Their feedback on the system performance is also of great relevance for the further improvement of the system.”