Hydrogen and carbon dioxide are two essential components in many industrial processes. The current patent from TotalEnergies Onetech presents a novel process and system for producing these gases starting from a feed stream containing carbon monoxide.
Central to this invention is a two-step process that involves reacting carbon monoxide with water and a halogen reactant, specifically bromine. In the first reaction zone, these components interact under specific conditions to yield two primary products: a gaseous carbon dioxide-containing effluent stream and an aqueous solution of hydrogen bromide. This innovative reaction mechanism transforms carbon monoxide into two valuable outputs, efficiently managing waste and maximizing yield.
The subsequent step in the patented process focuses on hydrogen production. The aqueous solution of hydrogen bromide produced in the first reaction zone is directed to a second reaction zone, where it undergoes decomposition. This stage is critical, as it employs electrolysis to decompose hydrogen bromide, resulting in a gaseous hydrogen-rich stream and a bromine-containing stream. The use of electrolysis is particularly noteworthy, providing a cleaner and more controlled method of producing hydrogen compared to traditional methods.
The described process offers several potential benefits for both environmental and industrial applications. By efficiently utilizing carbon monoxide, a typical industrial byproduct, the method reduces waste and transforms it into useful products, aligning with global sustainability goals.
