公开(公告)号：EP2883595A4

公开(公告)日：2016-03-09

申请号：EP13828275

申请日：2013-08-02

申请人： MITSUBISHI HEAVY IND LTD

发明人： TSUJIUCHI TATSUYA ,  HONJO SHINTARO ,  YONEKAWA TAKAHITO ,  SUGITA SATORU ,  ITO MOTOFUMI ,  WU TIFFANY ,  KAMIJO TAKASHI ,  NAGAYASU TATSUTO ,  OKAMOTO TAKUYA

IPC分类号： B01D53/62 ,  B01D53/14 ,  C01B32/50

CPC分类号： B01D53/62 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/343 ,  B01D53/78 ,  B01D2252/204 ,  B01D2257/504 ,  B01D2258/0283 ,  C01B32/50 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/124 ,  Y02P20/152 ,  Y02P20/57

摘要： There is provided an exhaust gas treatment system including a CO 2 recovery unit with further enhanced energy efficiency. An exhaust gas treatment system (1) of the present invention includes: a CO 2 recovery unit (10) including a CO 2 absorption column (11), an absorbing solution regeneration column (16), and a reboiler (21); and an exhaust gas heat exchanger (5) provided on a gas upstream side of the CO 2 recovery unit (10). Heat exchange is performed between process condensate discharged from the CO 2 absorption column (11) and steam condensate discharged from the reboiler (21) in a heat exchanger (22). The heated process condensate is fed to the absorbing solution regeneration column (16). Heat exchange is performed between the cooled steam condensate and exhaust gas in the exhaust gas heat exchanger (5) so that the steam condensate is heated while the exhaust gas is cooled.

公开(公告)号：EP2899462A4

公开(公告)日：2016-06-15

申请号：EP13835786

申请日：2013-08-23

申请人： MITSUBISHI HEAVY IND LTD

发明人： HONJO SHINTARO ,  TSUJIUCHI TATSUYA ,  ITO MOTOFUMI ,  WU TIFFANY

IPC分类号： F22D1/18 ,  C01B32/50 ,  F22D1/00 ,  F22D1/02

CPC分类号： F22D1/003 ,  Y02E20/326

摘要： A heat recovery system includes a preheater (4) in which heat exchange is performed between condensed water generated in a condenser (3) and CO 2 in a CO 2 recovery apparatus, a gas heater (5) in which heat exchange is performed between the condensed water heated in the preheater (4) and exhaust gas discharged from a boiler (7) and the boiler (7) to which the condensed water heated in the gas heater (5) is supplied as boiler supply water. With this configuration, an amount of steam extracted from a low-pressure steam turbine (2) is reduced.