Oxygen enrichment of Sulfuric Acid Regenerators (SAR) is beneficial in the regenerator furnace for increase acid throughput in a regenerator furnace, and to increase sulfur dioxide (SO2) conversion and reduce emissions in the converter. These benefits translate into; increasing unit capacity at a minimal investment, reduction of capital required for a new SAR plant and reduced emissions.
AIR LIQUIDE has developed and validated its own technologies through industrial references, enabling us to determine the optimum use of oxygen in the application aforementioned. From intermittent peak shaving to doubling the capacity of air based units, SAROX™ technology is usually justified (partially or totally) by fuel savings. SAROX™ can be used in simple and double adsorption processes.
The SAROX™ process typically requires several oxy-fuel burners on the combustion furnace. Computational Fluid Dynamics is used to determine the placement of the burners, determine residence time distribution, identify hot spots and improve heat transfer within the furnace.