Patent ID: 8459031
Filing Date: 2013-06-11
Classification: F01K,Y02E,Y02P

Abstract:
1. A system for co-generation of power and heat comprising: a heat conversion subsystem HCSS comprising at least one turbine, where a portion of heat of a fully vaporized and superheated working solution stream is converted to a useable form of energy or power to form a spent working solution stream, a vaporization subsystem VSS comprising a heat recovery and vapor generator HRVG and a mixing valve, where a vapor portion of a partially vaporized working solution substream is superheated and a liquid portion of the partially vaporized working solution substream is fully vaporized and superheated in the HRVG using heat derived from an external heat source stream and where the two superheated substreams are combined in the mixing valve to form the fully vaporized and superheated working solution stream, a heat exchange and separation subsystem HESS comprising a plurality of HESS heat exchange units, a HESS separator, and a plurality of valves, where the spent working solution stream is divided in a splitting valve into two spent working solution substreams, where a heated rich solution stream and a heated first lean solution substream are separately vaporized or partially vaporized in separate HESS heat exchange units using heat from the two spent working solution substreams to form a partially to fully vaporized rich solution stream, a partially vaporized first lean solution substream, and two cooled spent working solution substreams, where the two cooled spent working solution substreams are combined in a mixing valve to form a cooled spent working solution stream, where the partially to fully vaporized rich solution stream and the partially vaporized first lean solution substream are combined in a mixing value to form a mixed phase working solution steam, where the mixed phase working solution stream is separated in the HESS separator into the vapor portion of the partially vaporized working solution stream and the liquid portion of the partially vaporized working solution stream; a heat transfer and separation subsystem HTSS comprising a plurality of HTSS heat exchange units, a HTSS separator, a plurality of pumps and a plurality of valves, where the cooled spent working solution stream is combined in a mixing valve with a second lean solution substream to form a condensing solution stream, where the condensing solution stream is divided into three condensing solution substreams in a splitting valve, where two of the condensing solution substreams are used to separately preheat and heat a pressurized first lean solution substream and to preheat and heat a pressurized fully condensed rich solution stream in the HTSS heat exchange units to form the heated rich solution substream and heated first lean solution substream and three mixed phase condensing solution substreams, where the three mixed phase condensing solution substreams are combined in a mixing valve to form a mixed phase condensing solution stream, where the mixed phase condensing solution stream is separated into a vapor stream and a lean solution stream and where the lean solution stream is divided into a first lean solution substream, a second lean solution substream and a third lean solution substream, where the first lean solution substream is passed through a pump to form a pressurized first lean solution stream, where the second lean solution substream is pass through a pump to form a pressurized second lean solution stream, and where the third lean solution substream is combined with the vapor stream to from a rich solution stream, a heat utilization subsystem HUSS comprising at least one heat exchange unit, where the third condensing solution substream is used to preheat and heat an external heat absorber stream to form a heated external heat absorber stream and where the heated external heat absorber stream supplies heat to an external process, unit or facility; and a condensation subsystem CSS comprising a condenser unit and two pumps, where the condenser fully condenses the rich solution stream to form a fully condensed rich solution stream and where the fully condensed rich solution stream is pressurized in a rich solution pump to form the pressurized fully condensed rich solution stream using a pressurized external coolant stream formed from passing an external coolant stream through a pump, where the working solution streams, the condensing solution streams, the lean solution streams and the rich solution streams are different composition of a multi-component fluid including at least one lower boiling point component and at least one higher boiling point component.