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Patent Searching and Data


Title:
METHOD FOR REGENERATING AMINE ABSORBENT USING PROTON DONOR MIXTURE
Document Type and Number:
WIPO Patent Application WO/2014/148658
Kind Code:
A1
Abstract:
The present invention relates to a method for absorbing and regenerating carbon dioxide by adding and using a proton donor mixture for lowering regeneration energy after an amine absorbent, which is a carbon dioxide absorbent, is absorbed. The method comprises the steps of: preparing a proton donor mixture using an amine and a proton donor precursor; mixing the proton donor mixture with an amine to prepare an absorbent; injecting the absorbent into a carbon dioxide treatment apparatus including an absorption column and a regeneration column, and counter-currently moving the absorbent from the top portion to the bottom portion of the absorption column to absorb carbon dioxide moving from the bottom portion to the top portion of the absorption column; and moving the absorbent passing through the step of absorbing the carbon dioxide to the regeneration column and then regenerating the absorbent. The absorbent in which the proton donor mixture is mixed with the amine exhibits high regeneration efficiency even at a low temperature since the proton donor mixture gives protons to the absorbent when the absorbent is regenerated, and thus can be repeatedly used due to high thermal stability thereof and can have a long use lifespan.

Inventors:
BAEK IL-HYUN (KR)
PARK KI-TAE (KR)
YOU JONG KYUN (KR)
Application Number:
PCT/KR2013/002328
Publication Date:
September 25, 2014
Filing Date:
March 21, 2013
Export Citation:
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Assignee:
KOREA ENERGY RESEARCH INST (KR)
International Classes:
B01J20/30; B01D53/62; B01J20/22
Foreign References:
JP2012045518A2012-03-08
JP2012143760A2012-08-02
JP2011517615A2011-06-16
JP2012166139A2012-09-06
KR20090041491A2009-04-29
Attorney, Agent or Firm:
MOON, Hwan-Goo (Nonhyeon-ro 412Gangnam-gu, Seoul 135-921, KR)
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