Chemical Looping Combustion

Living reference work entry


Chemical looping combustion (CLC) and looping cycles in general represent an important new class of technologies, which can be deployed for direct combustion as well as be used in gasification applications. In this type of system, a solid carrier is used to bring oxygen to the fuel gas, so that it can be subsequently released as a pure CO2 stream suitable for use or, more likely, for sequestration. The solid is then regenerated in a reactor using air, so that the technology effectively achieves oxygen separation from air without the use of a cryogenic process or membrane technology. In a sense, cycles using liquids, such as amine scrubbing, could also be regarded as a type of looping cycle, the key being that the carrier must be regenerated and reutilized for as long as possible. However, this chapter will restrict itself to considering the uses of solid carriers only and, more specifically, those in which oxygen is transported and not CO2 as is the case for calcium looping. Particular focuses of this chapter will be on the use of this technology for H2 production and gasification applications, as well as its use with solid fuels. Another issue that will be discussed is high-pressure cycles, which are ultimately necessary if such systems are to be integrated into high-efficiency electrical energy cycles.


Solid Fuel Oxygen Carrier Petroleum Coke Fuel Reactor Chemical Loop Combustion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The author gratefully acknowledges the assistance and advice of Dr. David Granatstein (Granatstein Technical Services/CanmetENERGY) and Dr. Stuart Scott (Lecturer in Sustainable Energy, Department of Engineering, University of Cambridge) for a number of valuable discussions during the preparation of this chapter as well as for suggesting various amendments and improvements.


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© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.CanmetENERGY, Natural Resources CanadaOttawaUSA

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