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.
Wu H.,Rutgers University |
Reali R.S.,Carbozyme, Inc. |
Smith D.A.,Carbozyme, Inc. |
Trachtenberg M.C.,Carbozyme, Inc. |
Li J.,Rutgers University
Chemistry - A European Journal | Year: 2010
Caught in a CO2 trap: A highly flexible microporous metal-organic framework material exhibits a remarkable ability to capture and separate carbon dioxide from other small gases, such as N2, H 2, CH4, CO, and O2, with separation ratios of 294, 190, 257, and 441 for CO2/N2, CO2/H 2, CO2/CH4, and CO2/CO, respectively, at 0.16 atm and 25 °C, and 768 for CO2/O 2 at 0.2 atm and 25 °C. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Agency: Department of Defense | Branch: Special Operations Command | Program: SBIR | Phase: Phase I | Award Amount: 100.00K | Year: 2010
Carbozyme will develop a novel closed circuit rebreathing apparatus based on biomimetic principals. Our objective is to catalyze the conversion of carbon dioxide to ionic equivalents that can be readily absorbed into seawater, eliminating gas bubbles. This design has the unique advantage of being able to operate continuously for the full duration of the oxygen supply. Installation of the rebreather will be significantly easier since it will be designed to fit on the oxygen tank and utilize the same hosing. Furthermore, it will work equally well independent of water temperature, making it possible to operate over a temperature range of -2 to +41°C. Another important aspect of our design is that it protects against simple but dangerous mistakes such as the diver failing to replace a used cartridge. Overall, Carbozyme’s design is targeted at being easier to use, easier to breath through and safer than existing UBA CCR methods. Carbozyme’s approach to minimize market access time and cost is to license this technology to a preferred developer currently operating in this field that has demonstrated high quality reputation and experience in military and government operations. BENEFITS: One key benefit of our work is to create a new class of CCR where the diver is not limited by the CO2 capture capacity of the CCR but merely by dive tables and oxygen availability. Moreover, the device is designed have a low pressure drop making respiration easy, removing another limitation found in current CCR technology. Carbozyme’s rebreather will be integrated with the compressed gas tank on the diver’s back, decreasing the level of skill needed for installation. Perhaps most importantly it is designed to increase safety by operating in a parallel and continuous mode. We believe these features are valuable not only to the military but to recreational divers as well. We will commercialize by licensing the design to one of the major companies in this field