PLANT AND COMBUSTION EXHAUST GAS PROCESSING METHOD

Title:

PLANT AND COMBUSTION EXHAUST GAS PROCESSING METHOD

Document Type and Number:

WIPO Patent Application WO/2019/208416

Kind Code:

A1

Abstract:

This plant is provided with: a gas turbine 11; an exhaust heat recovery device 15 which includes a main exhaust heat recovery boiler 13 for subjecting the thermal energy of combustion exhaust gas 12 from the gas turbine 11 to heat-exchange in a main heat-exchange unit 13A and generating main steam S10, and a sub-exhaust heat recovery boiler 14 which is installed independently of the main heat-exchange unit 13A, subjects the thermal energy from the combustion exhaust gas 12 after a partial heat-exchange in the main heat-exchange unit 13A of the main exhaust heat recovery boiler 13 to heat-exchange in a sub-heat-exchange unit 14A, and generates sub-steam S20; a main steam turbine 16 which is driven with the main steam S10 generated in the main exhaust heat recovery boiler 13; a CO2 recovery device 50 including a reboiler for recovering CO2 contained in the combustion exhaust gas 12 discharged from the exhaust heat recovery device 15; and a first reboiler heat supply line L21 for introducing the sub-steam S20 generated in the sub-exhaust heat recovery boiler 14 into the reboiler 55.

Inventors:

TSUJIUCHI TATSUYA (JP)
YONEKAWA TAKAHITO (JP)
KAMIJO TAKASHI (JP)

Application Number:

PCT/JP2019/016761

Publication Date:

October 31, 2019

Filing Date:

April 19, 2019

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND ENG LTD (JP)

International Classes:

F01K23/10; B01D53/14; B01D53/62; B01D53/78; F01K17/02; F02G5/02

Domestic Patent References:

WO2011155886A1

2011-12-15

Foreign References:

JP2009248081A	2009-10-29
JP2018099647A	2018-06-28
US9027348B2	2015-05-12
US8683809B2	2014-04-01

Other References: