1 Introduction 1.1 Background 1.2 CO2 capture and disposal 1.3 Chemical looping combustion introduction 1.4 CLC combined power generation 2 Development of Oxygen Carrier 2.1 Oxygen carrier introduction 2.2 Performance evaluation 2.3 OC screening 2.4 Thermodynamic analysis 2.5 Iron oxide based OC review 2.6 Scale modeling 2.7 Objectives 3 Experimental Setup and Methods 3.1 TGA/MS measurement 3.2 Bench scale CLC setup 3.3 Microscopic imaging 3.4 Mechanical strength 3.5 Surface area measurement 3.6 XRD 3.7 Raman spectroscopy 4 Performance of Synthesized Oxygen Carrier 4.1 Synthetic oxygen carrier production 4.2 Effect of CeO2 additive on the physical properties 4.3 Reactivity 4.4 Reaction mechanism 5 Development of Low Cost Ilmenite Oxygen Carriers 5.1 Ilmenite OC review 5.2 Experiment and menthodology 5.3 Results and discussion 5.4 Conclusion 6 Reaction Kinetics Study 6.1 Reaction kinetics study 6.2 Reaction kinetics of ilmenite OC 6.3 Discussion and conclusion 7 Scale-up Study 7.1 Governing equations 7.2 Experiment 7.3 Results and discussion 7.4 Conclusion 8 Extended Chemical Looping Technology for Continuous High Purity Hydrogen Production 8.1 Overview of hydrogen production 8.2 Methane decomposition catalysts 8.3 Chemical looping hydrogen production process 8.4 Experimental setup and methods 8.5 Activated carbon catalyst {or high purity hydrogen production 8.6 Cyclic performance of AC catalyst 8.7 Catalytic activity dominating parameters 8.8 Conclusion 9 Regeneration of Activated Carbon Carrier with Respect to Activity and Heat Supply 9.1 Reactions 9.2 Deep regeneration using O2 or CO2 9.3 H2O+O2 as regeneration agent 9.4 Characterization o{ the regenerated AC 9.5 Heat and mass balance analysis 9.6 Conclusion 10 Root Cause Analysis of Catalytic Activity 10.1 Catalytic performance of AC and CB 10.2 Morphology evolution 10.3 Crystalline phase 10.4 Root cause analysis 10.5 Conclusion 11 Conclusions and Future Work Nomenclature References