Abstract: A system and method for optimizing operation of a rotating packed bed desorber or regenerator wherein a rich solvent is input and CO2 product and lean solvent are output includes collecting condensed water from a regeneration section of a rotating packed bed desorber system. The collected condensed water is then repressurized and reheated to generate steam and the steam is injected into the rotating packed bed desorber or regenerator as stripping vapors while heating rich solvent.

Abstract: A system and method for removing a component from a gas stream. The method includes absorbing the component from a gas stream in a solvent, separating the component from the solvent, and recycling the solvent back to the absorbing step. The absorbing is desirably performed by a counter-current contact between the solvent and the gas stream, such as using a rotating packed bed absorber. The rotating packed bed absorber is paired with a multistage solvent regeneration system configured to receive a rich solution from the rotating packed bed absorber and return a recycled lean solution to the rotating packed bed absorber.

Abstract: In the liquid phase reforming (LPR) of oxygenated C,H-containing compounds such as alcohols, various strategies are disclosed for managing byproduct CO2. Important processing options include those in which electrolyte, consumed in capturing or precipitating the CO2 generated from LPR, is regenerated or not regenerated, with carbon emissions potentially being avoided in the latter case. With regeneration, different chemistries are possible, such as in the case of a regeneration cycle utilizing hydroxide anions to precipitate a solid, carbonate form of CO2 that is generated from reforming. Alternatively, a reaction and regeneration system may use carbonate anions to “capture” CO2 and thereby maintain it as aqueous, solubilized bicarbonate form.