Glass MeltingIncreasing your process efficiency and productivity while reducing emissions

Boosting is the method of choice if you

• - wish to increase your melting capacity without changing your furnace footprint
• - wish to optimise the number of furnaces you have in operation.

Complementing your air-fuel burners, oxyfuel burners are installed and/or oxygen is injected through high-pressure lances. This raises flame temperatures by eliminating nitrogen and increasing the oxygen concentration. As a result, oxyfuel boosting also raises the concentration of CO₂ and H₂O in the vicinity of the flame. And since these gases are mainly responsible for thermal radiation, they make gas jets more efficient. 

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This is a temporary installation designed to ensure continuity of service during maintenance or repair work.

Our COROX^® Oxyservice is of particular interest to operators with a plugged regenerator or leaking recuperative heat recovery system. Here we deliver the oxygen lances and all supporting supply equipment for the duration of the maintenance work.

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Our innovative COROX^® LowNOx solution is the ideal way to reduce NOx emissions in order to comply with stricter legislation.

It involves injecting additional oxygen through high-pressure lances to create a more intense, directional flue gas recirculation effect within the furnace. As a result, the main air/gas burner system produces a diluted, staged combustion process. The fuel dilution leads to a more homogenous flame and a reduced flame temperature. As the flame temperature has a direct impact on NOx levels, this lowers emissions significantly. A lower flame temperature also reduces the concentration of hydrocarbon radicals in the furnace, thereby limiting NOx formation. In addition, an improved heat transfer rate shortens the window during which NOx can form.

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During melting and refining, gas bubbling through molten glass can help to enhance glass melting convection currents and improve re-adsorption of any remaining bubbles into the melt in order to eliminate defects. 

Gases can also be bubbled through the melt to help improve glass conditioning. As oxygen is more soluble than air, it is an effective way to reduce seed formation. Helium is often used for premium products. 

We provide the full range of regular and inert gases (e.g. HE, O₂, N₂, Ar) and supply systems to support all bubbling applications. 

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You can also rely on us to provide the full range of high-precision calibration gases and process control gas mixtures to support compliance with emissions regulations through accurate monitoring and reporting of atmosphere and flue gas measurements.

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