Patent ID: 9284856
Filing Date: 2016-03-15
CPC Classification: B01D,C10G,F01K,Y02E

Claim Text:
1. A gas turbine combined cycle power plant, comprising: a gas turbine which generates electricity by being fueled with crude oil or heavy oil; a multiple-stage exhaust heat recovery portion, which generates electricity by using exhaust gas of the gas turbine as at least a partial heat source of the multiple-stage exhaust heat recovery portion; and a distillation unit, wherein the multiple-stage exhaust heat recovery portion comprises a low pressure steam generator, a low pressure steam turbine, a medium pressure steam generator, and a medium pressure steam turbine, wherein the distillation unit distills a light oil fraction from crude oil or heavy oil, with the interior of the distillation unit kept in an environment which lowers a boiling point of crude oil or heavy oil, wherein the distillation unit is provided with heaters configured to heat crude oil or heavy oil, wherein the heaters are provided with a low pressure steam extraction pipe through which low pressure steam generated in the multiple-stage exhaust heat recovery portion flows and a medium pressure steam extraction pipe through which medium pressure steam generated in the multiple-stage exhaust heat recovery portion flows, wherein the low pressure steam extraction pipe is branched from and connected to a low pressure steam pipe which supplies the low pressure steam from the low pressure steam generator to the low pressure steam turbine, and wherein the medium pressure steam extraction pipe is branched from and connected to a medium pressure steam pipe which supplies the medium pressure steam from the medium pressure steam generator to the medium pressure steam turbine.