Advances in Oxygen Carrier for Energy Applications

Dear Colleagues,

The Paris Accord has again pointed out the development of carbon capture technologies as a strong necessity if the countries of the world want to limit climate change consequences. Among them, Chemical Looping Technologies have been, so far, confirmed to be the cheapest one to be implemented for energy production, both from fossil or renewable sources. Due to their great potential, in the last few years, there has been a great number of developments of different technologies, depending on their final applications, such as CLC (combustion for heat or power production), CLOU (combustion with gaseous oxygen for improvement of combustion efficiency), CLAS (gaseous oxygen generation for oxy-combustion processes), OCAC (aided combustion with oxygen carriers), CLG (gasification for syngas or hydrogen production), CLR (reforming for syngas or hydrogen production), CLSO (selective oxidation of hydrocarbons), etc.

A common theme of all this technology is the development of an oxygen carrier material suitable for each application. The special properties that these materials have to withstand make this issue the cornerstone of future implementation of this technology. In this sense, worldwide research has focused on several topics, such as kinetics, material integrity, deactivation, evaluation in pilot plant, scale-up production, etc.

This Special Issue of Applied Sciences will highlight all the challenges related to oxygen carrier material development for different chemical looping technologies. We encourage all of you to contribute to this issue with your state-of-the-art findings.

Dr. Pilar Gayán Sanz
Dr. Alberto Abad Secades
Guest Editors

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