CO2 RECOVERY DEVICE AND CO2 RECOVERY METHOD

Title:

CO2 RECOVERY DEVICE AND CO2 RECOVERY METHOD

Document Type and Number:

WIPO Patent Application WO/2016/006416

Kind Code:

A1

Abstract:

Provided are a CO2 recovery device and a CO2 recovery method with which it is possible for a CO2 recovery amount and/or a CO2 recovery rate to be controlled with high accuracy towards a target value. This CO2 recovery device (1) is characterised by being equipped with: a CO2-absorbing tower (14) that causes CO2 included in exhaust gas (11A) to be absorbed into a CO2-absorbing liquid (13); a CO2-absorbing liquid regeneration tower (15) which, by heating, regenerates the CO2-absorbing liquid (13) that has absorbed the CO2; a CO2 recovery rate control unit which measures the CO2 concentration in the exhaust gas (11A) and which, on the basis of the CO2 concentration in the exhaust gas discharged from the CO2-absorbing liquid (13) that has absorbed the CO2, changes the absorbing liquid circulation amount and the amount of saturated water vapour (S) that is supplied to a regeneration heater (31); and a CO2 recovery amount control unit which, in accordance with the CO2 concentration of the exhaust gas (11A) and the exhaust gas flow rate, changes the circulation amount of the CO2-absorbing liquid (13) and the amount of the saturated water vapour (S) supplied to the regeneration heater (31).

Inventors:

NAKAGAWA YOSUKE (JP)
SHIMADA DAISUKE (JP)
TSUJIUCHI TATSUYA (JP)

Application Number:

PCT/JP2015/067752

Publication Date:

January 14, 2016

Filing Date:

June 19, 2015

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

B01D53/14; B01D53/62; C01B32/50

Foreign References:

JP2013158685A	2013-08-19
JP2012035214A	2012-02-23
JP2011057485A	2011-03-24
JP2012152731A	2012-08-16
JP2014004525A	2014-01-16

Other References: