Patent ID: 7065969

Claim:
A method for implementing a two cycle thermodynamic system comprising the steps of: combining a first stream and a second stream to form a combined stream, where the first stream comprises a first concentration of at least one lower boiling component and a first concentration of at least one higher boiling component and where the second stream comprising a recirculating concentration of the at least one lower boiling component and a recirculating concentration of the at least one higher boiling component; fully vaporizing a pre-vaporized stream with an external heat source stream to form a fully vaporized stream; expanding and transforming thermal energy from the fully vaporized stream into a usable energy form to produce a spent stream, cooling and separating the spent stream into a vapor stream and the second stream, where the vapor stream has a higher concentration of the at least one lower boiling component than a concentration of the at least one lower boiling component of the spent stream; forming a mixed stream from the vapor stream and a portion of the second stream; condensing the mixed stream with an external coolant stream to form a condensed stream; and heating the condensed stream with heat derived from the mixed stream, the spent stream and the external heat source stream to form the first stream.