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System and method for collecting carbon dioxide in exhaust gas

  • US 20060185516A1
  • Filed: 06/18/2004
  • Published: 08/24/2006
  • Est. Priority Date: 06/18/2003
  • Status: Abandoned Application
First Claim
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1. A system for recovery of carbon dioxide contained in exhaust gas, comprising:

  • a carbon dioxide absorber which is provided with an exhaust gas introduction port, an alkaline liquid absorbent introduction port, a remaining exhaust gas discharge port and an alkaline liquid absorbent discharge port and causes gas-liquid contact between the introduced exhaust gas and alkaline liquid absorbent to absorb carbon dioxide contained in the exhaust gas by the alkaline liquid absorbent;

    an alkaline liquid absorbent reflux line which returns the alkaline liquid absorbent discharged from the alkaline liquid absorbent discharge port of the carbon dioxide absorber back to the alkaline liquid absorbent introduction port; and

    a deposition vessel which is interposed in the alkaline liquid absorbent reflux line or connected by a line branched from the alkaline liquid absorbent reflux line, houses the alkaline liquid absorbent, and houses insoluble compounds which are a reaction product of the alkaline liquid absorbent and the carbon dioxide.

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