Absorption type removal / concentration apparatus

An absorption removal/concentration apparatus comprising:

• an amine support solid absorbent made to:
• contact with air to be processed containing carbon dioxide to make the absorbent absorb carbon dioxide so that carbon dioxide is removed from the air to be processed, and
• contact with air for reproduction to desorb carbon dioxide from the absorbent;
• and
• at least one enthalpy changing device which decreases an enthalpy of the air to be processed and/or increases the enthalpy of the air for reproduction, wherein
• the at least one enthalpy changing device is controlled to make the enthalpy of the air for reproduction greater than the enthalpy of the air to be processed so as to remove carbon dioxide from the absorbent,
• the at least one enthalpy changing device comprises a lowering device and an enlarging device,
• the lowering device decreases the enthalpy of the air to be processed,
• the enlarging device increases the enthalpy of the air for reproduction,
• the lowering device comprises a temperature control device and a humidity control device, and
• the enlarging device comprises a temperature control device and a humidity control device.

The absorption removal/concentration apparatus comprising:

• an amine support solid absorbent made to:
• contact with air to be processed containing carbon dioxide to make the absorbent absorb carbon dioxide so that carbon dioxide is removed from the air to be processed, and
• contact with air for reproduction to desorb carbon dioxide from the absorbent;
• and
• at least one enthalpy changing device which decreases an enthalpy of the air to be processed and/or increases the enthalpy of the air for reproduction, wherein
• the at least one enthalpy changing device is controlled to make the enthalpy of the air for reproduction greater than the enthalpy of the air to be processed so as to remove carbon dioxide from the absorbent,
• the at least one enthalpy changing device comprises a lowering device,
• the lowering device decreases the enthalpy of the air to be processed, and
• the lowering device comprises a temperature control device and a humidity control device.