Water shifting can refer to the water-gas shift reaction, which is a chemical reaction between carbon monoxide and water vapor to form carbon dioxide and hydrogen. The term "shift" in water-gas shift refers to changing the water gas composition (CO:H2) ratio, which can be increased by adding CO2 or reduced by adding steam to the reactor. The water-gas shift reaction is used in various industrial processes, including hydrogen production and carbon capture and storage.
There is also a reverse water gas shift (RWGS) reaction, which is a method of converting waste CO2 and renewable H2 to CO and H2O, where the resulting CO can be used in processes. The RWGS reaction is exothermic and favored at higher temperatures and lower steam content.
Overall, water shifting refers to chemical reactions that involve the conversion of carbon monoxide and water vapor to carbon dioxide and hydrogen, or the reverse reaction of converting waste CO2 and renewable H2 to CO and H2O.
