Patent ID: 8920737

Claim:
A system, comprising: a reactor-adsorber configured to receive a gas, wherein the reactor-adsorber comprises a catalyst material configured to catalyze a water gas shift reaction of the gas to generate a hydrogen-rich gas, and a carbon dioxide (CO 2 ) adsorption material configured to adsorb CO 2 from the hydrogen-rich gas to generate a saturated CO 2 adsorption material; a regenerator configured to receive the saturated CO 2 adsorption material from the reactor-adsorber, wherein the regenerator is configured to regenerate the saturated CO 2 adsorption material to provide a regenerated CO 2 adsorption material and CO 2 ; a first solids pressurizing feeder configured to convey the saturated CO 2 adsorption material from the reactor-adsorber to the regenerator; and a second solids pressurizing feeder configured to convey the regenerated CO 2 adsorption material from the regenerator to the reactor-adsorber, wherein the first and second solids pressurizing feeders are configured to at least substantially reduce or prevent fluid flow between the reactor-adsorber and the regenerator.