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    STUDIA CHEMIA - Issue no. 2 / 2012  
         
  Article:   EVALUATION OF IRON AND NICKEL-BASED OXYGEN CARRIERS FOR NATURAL GAS CHEMICAL LOOPING COMBUSTION SYSTEMS.

Authors:  . 		 
       
         
  Abstract:  Chemical looping combustion (CLC) is a innovative technology used to capture CO₂, in which a solid oxygen carrier is circulated between two interconnected bed reactors. A fuel gas is oxidized to carbon dioxide and water by the oxygen carrier. The reduced oxygen carrier is transported to the air reactor where it is oxidized back to its original state by air. This paper investigates two natural gas CLC processes using ferric oxide and nickel oxide as oxygen carriers. The oxygen carriers are reduced in the temperature range 750-850°C while the oxidation temperature is between 850-950°C. The processes studied have the net electrical efficiencies in the range of 41-42% and the CO₂ capture rate is about 99%.

Keywords: Chemical looping combustion (CLC), Power generation, Oxygen carriers, Carbon Capture and Storage (CCS) 		 
         
     
         
         
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