. rights reserved. Validation of chemical- looping with oxygen uncoupling (CLOU) using Cu- based oxygen carrier and comparative study of Cu, Mn and Co based oxygen carriers using ASPEN plus Xiao. We consider three types of OCs namely the CuO /Cu 2 O, Mn 2 O 3 /Mn 3 O 4 , and Co 3 O 4 /CoO in the simulations. In case of Mn 2 O 3 /Mn 3 O 4 and Co 3 O 4 /CoO, the oxygen is released according. Z., Chivetta C., Agarwal R. Process simulation and validation of chemical- looping with oxygen uncoupling (CLOU) process using Cu- based oxygen carrier, Energy & Fuels 27, pp. 6906-6912,