Lee S.-W.,Korea Institute of Geoscience and Mineral Resources |
Park S.-B.,Korea Advanced Institute of Science and Technology |
Jeong S.-K.,Korea Institute of Energy Research |
Lim K.-S.,Korea Institute of Energy Research |
And 2 more authors.
Micron | Year: 2010
This study focuses on the separation and storage of the global warming greenhouse gas CO2, and the use of natural biocatalysts in the development of technologies to improve CO2 storage rates and provide new methods for CO2 capture. Carbonic anhydrase (CA) has recently been used as a biocatalyst to sequester CO2 through the conversion of CO2 to HCO- in the mineralization of CaCO3. Biomimetic CaCO3 mineralization for carbon capture and storage offers potential as a stable CO2 capture technology. In this report, we review recent developments in this field and assess disadvantages and improvements in the use of CA in industrial applications. We discuss the contribution that understanding of mechanisms of CO2 conversion to CO3 - in the formation and regeneration of bivalve shells will make to developments in biomimetic CO2 storage. © 2009 Elsevier Ltd. All rights reserved. Source
Agency: Department of Energy | Branch: | Program: STTR | Phase: Phase I | Award Amount: 100.00K | Year: 2001
This project will develop an enzyme-catalyzed, contained liquid membrane reactor for removal of CO2 from natural gas. The membrane will be capable of achieving both high flux and high separation factor while reducing fouling. This is a specific example of the enrichment of a dilute gas stream. Ultimately, a biomimetically derived membrane will be capable of selectively removing CO2 from mixed gas streams where the CO2 is < 50%. Phase I will develop the membrane system and begin a parametric performance evaluation. Initially, CO2/CH4 mixtures will be used. The data will be analyzed by mass spectrometry. Thereafter, more complex mixtures, along with natural samples of natural gas and landfill gas, will be tested. Phase II field tests will demonstrate efficacy.
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 99.84K | Year: 2002
70798 The reduction of greenhouse gases will require a cost efficient method to capture the carbon dioxide in flue gas. This project will develop a biomimetic, enzyme based, hollow fiber membrane system to remove more than 90% of the carbon dioxide from flue gas and enrich it from a feed of 3-20% to a permeate of 95-99 vol%. This highly concentrated carbon dioxide would serve as an intermediate for a subsequent reaction to form calcium/magnesium carbonates for permanent sequestration. Phase I will develop the enzyme-based, hollow fiber contained liquid membrane system to demonstrate high permeance and high selectivity for carbon dioxide/air. The new design will have a guaranteed interfiber spacing to ensure operational integrity of the liquid membrane. Water evaporation from this membrane system will be limited by coating a hydrophobic layer on the hollow fiber surface. Lastly, the technical and economic feasibility of the membrane process will be analyzed. Commercial Applications and Other Benefits as described by the awardee: The biomimetic membrane should provide high carbon dioxide productivity and long-term operation stability under various conditions, resulting in wide application in the U.S. and abroad.
Carbozyme, Inc. | Date: 1999-07-06
Diagnostic reagents, namely, a miniature solid-phase wafer containing a library of oligosaccarides in an array enabling the efficient screening of biological samples for clinical medical and veterinary purposes.
Carbozyme, Inc. | Date: 2007-02-28
Carbon dioxide separation membrane.