Novel Carbon Dioxide (CO2)-Selective Membranes for CO2 Capture from less than 1% CO2 Sources Email Page
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Performer:  Ohio State University Location:  Columbus, Ohio
Project Duration:  03/01/2016 – 02/28/2019 Award Number:  FE0026919
Technology Area:  Post-Combustion Capture Total Award Value:  $1,621,142
Key Technology:  Membranes DOE Share:  $1,248,278
Performer Share:  $372,864

Continuous membrane machine at OSU
Continuous membrane machine at OSU

Project Description

Researchers at Ohio State University (OSU) have teamed with TriSep Corporation, Gradient Technology (GT), and American Electric Power to develop a cost-effective design and manufacturing process for new membranes and membrane modules that capture carbon dioxide (CO2) from less than one percent CO2 concentration sources. Based on prior work, novel CO2-selective membranes will be synthesized using a cost-effective nanoporous polymer support and a top layer coating of thin, highly-selective, permeable, amine-containing polymer membrane. Membrane performance targets of about 1,800 GPU for CO2 permeance and greater than 140 for CO2/N2 selectivity will be achieved using a simulated feed gas mixture containing less than one percent CO2, a scaled up prototype membrane (14 inches in width) and three fabricated prototype membrane modules. The CO2-selective membrane modules will be implemented using a two-stage membrane process. The membrane uses a facilitated transport mechanism where CO2 permeance is increased as CO2 concentration is reduced. The OSU team will conduct membrane synthesis, module fabrication, and membrane module testing. A techno-economic and system analysis of the viability of the advanced membrane process will be conducted by GT. TriSep Corporation will advise the team regarding pilot- and large-scale continuous membrane fabrication and commercialization.

Project Benefits

The membrane technology has potential for low capital and low operating costs upon a large-scale implementation, due to the membrane’s modular design. Preliminary cost calculations have indicated a capture cost of about $200/tonne CO2 captured and a cost of electricity increase of about 23% for capturing the less than one percent CO2 treated flue gas after >90% CO2 capture from the flue gas containing typically 14% CO2 in coal-fired power plants. The cost is anticipated to be further reduced through membrane improvement and process optimization during this project.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager David Lang:
Technology Manager Lynn Brickett:
Principal Investigator W.S. Winston Ho: