Title: Carbon dioxide capture using phase change ionic liquids

Abstract

Disclosed herein are methods for CO₂ capture that use phase change ionic liquids (PCILs) to remove the CO₂ from flue gas or other gas streams containing CO₂. PCILs have high CO₂ uptake and form a liquid PCIL-CO₂ complex when they react with C( )₂. When the liquid PCIL-CO₂ complex is heated to regenerate the solid PCIL material by removing the carbon dioxide, part of the heat needed to release the CO₂ can be supplied by the heat of fusion of the PCIL as it solidifies. Utilization of the heat of fusion of the PCIL to assist in its own regeneration can substantially reduce the parasitic energy loss associated with post-combustion CO₂ capture.

Inventors:

Brennecke, Joan F.; Maginn, Edward J.; Schneider, William F.

Issue Date:

2018-10-02

Research Org.:

University of Notre Dame du Lac, Notre Dame, IN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1492016

Patent Number(s):

10086331

Application Number:

15/034,464

Assignee:

University of Notre Dame du Lac (Notre Dame, IN)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D2251/80 - Organic bases or salts
B01D2252/30 - Ionic liquids and zwitter-ions
B01D2257/504 - Carbon dioxide
B01D2258/0283 - Flue gases
B01D53/1425 - {Regeneration of liquid absorbents}
B01D53/1475 - {Removing carbon dioxide}
B01D53/1493 - {Selection of liquid materials for use as absorbents}
B01D53/62 - Carbon oxides
B01D53/83 - with moving reactants

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

Y02A50/20 - Air quality improvement or preservation

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DOE Contract Number:  

AR0000094; FG36-07NT43091

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Nov 05

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY