Abstract
This paper provides a review of the experimental results obtained from a 1.7 MWth Calcium Looping (CaL) postcombustion pilot plant located in La Pereda, Spain under two EU projects carried out in the pilot: CaOling (2009–2013), ReCaL (2012-2015). Recent modifications to the pilot and the results of an ongoing third project, CaO2 (2014-2017) are also discussed. The experimental results obtained so far demonstrate the viability of CaL as a competitive CO2 capture technology at conditions close to those expected in large scale system. There is also potential for further improving efficiency and reducing costs as new innovations are implemented in order to sustain the activity of the sorbent or to operate with very high concentrations of O2 in the calciner, which will lead to process schemes that can be considered as 2nd generation CaL technology.
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