Green SMR to refuel HRSG duct burners

1. A method of energy generation, comprising a) providing a first gas mixture; b) introducing said first gas mixture either into a pre-reformer followed by a primary reformer, or directly into a primary reformer, thereby generating a second gas mixture comprising hydrogen, carbon monoxide, carbon dioxide; c) introducing said second gas mixture into at least one isothermal shift reactor, or a combination of high followed by a low temperature shift reactor, or a medium temperature shift reactor, thereby generating a third gas mixture; d) introducing said third gas mixture into an amine wash, wherein said third gas is separated into a fourth gas mixture and a carbon dioxide enriched stream; e) introducing said fourth gas mixture into a H2 PSA unit, wherein said fourth gas is separated into a hydrogen enriched stream and a PSA purge gas stream; f) introducing said PSA purge gas stream as fuel into a reformer furnace along with natural gas, a portion of the feed hydrocarbon stream, or any other external supplemental fuel for the reformer furnace; g) providing a primer mover for producing a power output, and a combustion product outlet stream; h) providing a steam generator wherein a water inlet stream and said combustion product outlet stream exchange heat to produce at least one steam outlet stream; i) providing at least one set of supplemental burners within steam generator, situated in the path of said combustion product outlet stream, wherein said hydrogen enriched stream is combusted.