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Cleaner, reliable carbon dioxide scrubbing

Tue, 08/14/2012 - 7:51am

2012 R&D 100 Winner
EV366_PNNL_CO2Removal2One of the biggest challenges for engineers of naval submarines is guaranteeing a supply of oxygen for the sailors. Existing carbon dioxide scrubbing techniques use a liquid monoethanol amine (MEA) solution. A 50-year-old technology, MEA systems are bulky, heavy, corrosive, malodorous, and short lived.

The emergence of functional self-assembled nanoporous materials has opened the door to a cleaner, more efficient, and more reliable method for scrubbing carbon dioxide. The Advanced Carbon Dioxide Removal Unit (ACRU), an invention of researchers at Pacific Northwest National Laboratory, Richland, Wash., and Steward Advanced Materials, Chattanooga, Tenn., employs an amine-functionalized granular version of self-assembled monolayers on mesoporous supports (SAMMS) technology, which is noted for its ability to form strong chemical bonds with targeted materials.

Based on technology to remove heavy metals from waste streams, the highly porous silica substrate maximizes the density of chemically active sites, allowing facile diffusion through the domains of the sorbent material. The SAMMS sorbent can capture carbon dioxde directly from the atmosphere and then release it controllably and on demand when a modest amount of heat and/or vacuum is applied.

These characteristics give the ACRU extended lifespan, functionality free of hazardous byproducts or volatile organic compounds, and rapid sorption kinetics not compromised by the diffusion limitations that hinder competing technologies.

Technology
Carbon dioxide scrubbing material

Developers
Pacific Northwest National Laboratory
Steward Advanced Materials


Development Team

EV366_PNNL_CO2Removal_Bagaglio_Mario EV366_PNNL_CO2Removal_Bays_Tim EV366_PNNL_CO2Removal_Buxton_Kenneth
Capt. Mario J. Bagaglio, Jr. Tim Bays Kenneth Buxton

 

 

 

 

 

 

 

EV366_PNNL_CO2Removal_Caldwell_Dustin EV366_PNNL_CO2Removal_Carman_April EV366_PNNL_CO2Removal_Fryxell_Glen
Dustin Caldwell April Carman Glen Fryxell

 

 

 

 

 

 

 

EV366_PNNL_CO2Removal_Mullen_Dennis EV366_PNNL_CO2Removal_Rappe_Kenneth EV366_PNNL_CO2Removal_Tucker_Jake
Dennis Mullen Kenneth G. Rappe Jake Tucker

 

 

 

 

 

 

 

EV366_PNNL_CO2Removal_Willett_Jessee EV366_PNNL_CO2Removal_Zemanian_Thomas
Jesse Willett Thomas Zemanian

 






The Advanced Carbon Dioxide Removal Unit Development Team
Thomas S. Zemanian, Principal Developer, Pacific Northwest National Laboratory
Mario J. Bagaglio, Pacific Northwest National Laboratory (retired)
Tim Bays Pacific, Northwest National Laboratory
Kenneth Buxton, Pacific Northwest National Laboratory
Dustin Caldwell, Pacific Northwest National Laboratory
April J. Carmen, Pacific Northwest National Laboratory
Keith Eischeid, Steward Advanced Materials
Glenn E. Frywell, Pacific Northwest National Laboratory (former)
Dennis Mullen, Pacific Northwest National Laboratory
Kenneth Rappe, Pacific Northwest National Laboratory
Jake Tucker, Pacific Northwest National Laboratory
Jesse Willett, Pacific Northwest National Laboratory

Award Year

2012

Organization

Pacific Northwest National Laboratory (U.S. Dept. of Energy)
Steward Advanced Materials

Developers

Thomas Zemanian (Primary)
Tim Bays (Primary)
Kenneth Buxton (Primary)
Dustin Caldwell (Primary)
April Carmen (Primary)
Dennis Mullen (Primary)
Kenneth Rappe (Primary)
Jake Tucker (Primary)
Jesse Willett (Primary)
Glenn Frywell (Primary)
Mario Bagaglio (Primary)
Keith Eischeid (co-developer)
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