SYSTEM AND METHOD FOR RECOVERING HEAT FROM CO2 RECOVERY DEVICE

WIPO Patent Application WO/2011/096250

A1

Disclosed is a system for recovering heat from a CO2 recovery device (55) that includes an absorption tower in which CO2 contained in a combustion gas (101) discharged from a boiler (51) is absorbed into an absorption liquid and removed and a regeneration tower in which the CO2 is released from the absorption liquid that has absorbed CO2, thereby rendering the absorption liquid reusable in the absorption tower, the system being equipped with: a Ljungstrom heat exchanger (57) which performs heat exchange between a combustion gas (101) that has been discharged from the boiler (51) and has not yet reached to the CO2 recovery device (55) and air for combustion (102) to be supplied to the boiler (51); and an air preheater (58) in which the air for combustion (102) that has not yet reached to the Ljungstrom heat exchanger (57) is preheated by means of waste heat taken out of the CO2 recovery device (55).

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IIJIMA MASAKI
OISHI TSUYOSHI
TATSUMI MASAHIKO
YAGI YASUYUKI
KAIBARA KAZUHIKO

PCT/JP2011/050286

August 11, 2011

January 11, 2011

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MITSUBISHI HEAVY IND LTD (JP)
KANSAI ELECTRIC POWER CO (JP)
IIJIMA MASAKI
OISHI TSUYOSHI
TATSUMI MASAHIKO
YAGI YASUYUKI
KAIBARA KAZUHIKO

C01B32/50; B01D53/14; B01D53/62; F23J15/00; F23L15/00

JPH0731834A	1995-02-03
JPH112403A	1999-01-06
JPH08155262A	1996-06-18
JPH06327936A	1994-11-29
JP2005161220A	2005-06-23
JP2010227742A	2010-10-14
JP2010085078A	2010-04-15
JPH05245339A	1993-09-24

See also references of EP 2543635A4

SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)

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