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      Chemical looping processes for CO2 capture and carbonaceous fuel conversion – prospect and opportunity

      , , ,
      Energy & Environmental Science
      Royal Society of Chemistry (RSC)

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          Adsorbent materials for carbon dioxide capture from large anthropogenic point sources.

          Since the time of the industrial revolution, the atmospheric CO(2) concentration has risen by nearly 35 % to its current level of 383 ppm. The increased carbon dioxide concentration in the atmosphere has been suggested to be a leading contributor to global climate change. To slow the increase, reductions in anthropogenic CO(2) emissions are necessary. Large emission point sources, such as fossil-fuel-based power generation facilities, are the first targets for these reductions. A benchmark, mature technology for the separation of dilute CO(2) from gas streams is via absorption with aqueous amines. However, the use of solid adsorbents is now being widely considered as an alternative, potentially less-energy-intensive separation technology. This Review describes the CO(2) adsorption behavior of several different classes of solid carbon dioxide adsorbents, including zeolites, activated carbons, calcium oxides, hydrotalcites, organic-inorganic hybrids, and metal-organic frameworks. These adsorbents are evaluated in terms of their equilibrium CO(2) capacities as well as other important parameters such as adsorption-desorption kinetics, operating windows, stability, and regenerability. The scope of currently available CO(2) adsorbents and their critical properties that will ultimately affect their incorporation into large-scale separation processes is presented.
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            Advances in CO2 capture technology—The U.S. Department of Energy's Carbon Sequestration Program

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              The calcium looping cycle for large-scale CO2 capture

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                Author and article information

                Journal
                EESNBY
                Energy & Environmental Science
                Energy Environ. Sci.
                Royal Society of Chemistry (RSC)
                1754-5692
                1754-5706
                2012
                2012
                : 5
                : 6
                : 7254
                Article
                10.1039/c2ee03198a
                5eeb0084-4968-4516-8446-a5414f73350e
                © 2012
                History

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