PURPOSE: To regenerate an absorbing soln. for polar gas without lowering the output of a plant.
CONSTITUTION: The exhaust gas 3 of a boiler 10 passes through a denitration device 11, an air preheater 12, a gas heater 17 and a desulfurizer 13 to be lowered in temp. and subsequently enters an absorbing tower 18 and carbon dioxide in the exhaust gas is absorbed by a carbon dioxide absorbing soln. 6. The absorbing soln. having carbon dioxide absorbed thereinto is sent to a regeneration tower 19 through a absorbing soln. tank 20 while heated by an absorbing soln. heat exchanger 22 to discharge carbon dioxide. The absorbing soln. in the regeneration tower 19 is cooled by the absorbing soln. heat exchanger 22 and further cooled to temp. necessary for absorbing carbon dioxide by an absorbing soln. cooler 24 to be supplied to an absorbing tower 18. The absorbing soln. stored in the regeneration tower 19 is further heated in an absorbing soln. regenerating heat exchanger 25 by the exhaust gas of the boiler 10.
| WO/2023/187778 | METHOD FOR REMOVING CARBON DIOXIDE |
| JP4233768 | Chemical filter and its manufacturing method |
KITAMURA HIKARI
MATSUMOTO HIROYO
