Keynote Speakers



Keynote Speakers



Professor Gayán Sanz, Pilar
Combustion and Gasification Group
Investigador Científico · Research Scientist
Web of Science Highly Cited Researcher 2015 and 2016
E-mail:  pgayan AT icb.csic.es 

Talk Title: Chemical Looping Combustion technologies for energy production with CO2 capture: outlook and opportunity


 Chemical Looping Combustion (CLC) is considered a very promising combustion technology for power plants and industrial applications, with inherent CO2 capture which avoids the energy penalty imposed on other competing technologies. A CLC system is based on the use of an oxygen carrier which transfers the oxygen necessary for the fuel combustion from the air to the fuel. Frequently, a CLC system is composed by two interconnected fluidized bed reactors, the air reactor and the fuel reactor, and the oxygen carrier circulating between them. In CLC, the fuel is introduced to the fuel reactor where it is converted by the oxygen carrier to produce CO2 and H2O as gaseous products. The oxygen carrier must be transported to the air reactor to be oxidized by air to the initial state and then start a new cycle in the fuel reactor. The CO2 capture is inherent to this process, as combustion products (CO2 and H2O) are obtained in pure form, without any nitrogen in the stream. As no CO2 separation step is needed, this could be a breakthrough technology for Carbon Capture and Sequestration (CCS) implementation worldwide.

 CLC has been developed for combustion of gaseous, liquid and solid fuels, and is undergoing significant scale up at present. In the early 2000s, the development of CLC technology gave a significant boost to combustion of gaseous fuels, mainly natural gas. Major advances were made in developing oxygen carrier materials and demonstrating the CLC process at pilot scale. Nowadays, the challenge in developing CLC technology with gaseous fuels is the industrial scale-up of both the process and the production of highly reactive and durable oxygen carrier materials. Recently, combustion of liquid fuels has also received attention in order to use heavy fuels or renewable fuels such as bio-ethanol for syngas or hydrogen production.

 Moreover, the need for mitigation of CO2 emissions to the atmosphere combined with the important role of coal combustion in the future energy mix has acted as driving forces to boost the development of CLC technology with solid fuels. What is more, the consideration of the CLC process with renewable fuels, such as biomass, is attracting a growing interest as a promising Bio-Energy with Carbon Capture (BECCS) technology to recover CO2 from the atmosphere through its negative emissions. This paper will provide an overview of some recent developments with respect to CLC with gaseous, liquid and solid fuels. In addition, future needs and research areas will be presented.



 Dr. Pilar Gayan is a chemical engineering researcher working in the Institute of Carboquimica (CSIC) in Zaragoza, Spain.  Her research lines focused on the development of advanced energy generation processes, both combustion and gasification processes in fluidized beds, as well as in the area of ​​CO2 capture, by the Chemical Looping Combustion (CLC) processes, both from the point of view of development of suitable materials to the process and the technology demonstration at pilot plant scale. She is author of  more than 140 publications with an h index of 44 (http://www.researcherid.com/rid/P-5730-2016). She has been recognized as 2105, 2016 and 2017 "Highly Cited Researcher" from Thomson Reuters (http://hcr.stateofinnovation.com/)due to the high number of citations of her work in the field of engineering.