Patent ID: 8950196
Filing Date: 2015-02-10
Classification: F17C,Y02E

Abstract:
1. A power plant comprising: an ambient air exchanger configured to vaporize LNG to a cold vaporized natural gas stream having a first temperature; a first heat exchanger coupled to the ambient air exchanger and configured to receive and heat the cold vaporized natural gas stream to a second temperature using heat from a heat transfer medium in a heat transfer medium circuit; wherein the heat transfer medium circuit is thermally coupled to a heat recovery steam generator via a power steam circuit, the power steam circuit comprising a steam turbine exhausting steam into a second heat exchanger for condensing the exhaust steam into feedwater the second heat exchanger being configured to provide heat to the heat transfer medium circuit; a first feedwater pump configured for pumping the feedwater to the heat recovery steam generator for heating into hot feedwater; a third heat exchanger configured to receive at least a portion of the hot feedwater and to provide heat to the heat transfer medium circuit, and wherein the heat recovery steam generator is a primary and continuous source of heat for the heat transfer medium circuit; and wherein the heat recovery steam generator is configured to allow heating of the heat transfer medium in an amount sufficient to raise the temperature of the cold vaporized natural gas stream from the first temperature to the second temperature.