Experimental investigation of CaMnO3-δ based oxygen carriers used in continuous Chemical-Looping Combustion
Journal article, 2014

Three materials of perovskite structure, (M = Mg or Mg and Ti), have been examined as oxygen carriers in continuous operation of chemical-looping combustion (CLC) in a circulating fluidized bed system with the designed fuel power 300 W. Natural gas was used as fuel. All three materials were capable of completely converting the fuel to carbon dioxide and water at 900°C. All materials also showed the ability to release gas phase oxygen when fluidized by inert gas at elevated temperature (700–950°C); that is, they were suitable for chemical looping with oxygen uncoupling (CLOU). Both fuel conversion and oxygen release improved with temperature. All three materials also showed good mechanical integrity, as the fraction of fines collected during experiments was small. These results indicate that the materials are promising oxygen carriers for chemical-looping combustion.

Author

Peter Hallberg

Chalmers, Energy and Environment, Energy Technology

Malin Hanning

Chalmers, Energy and Environment, Energy Technology

Dazheng Jing

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Frans Snijkers

Flemish Institute for Technological Research

Jasper van Noyen

Flemish Institute for Technological Research

Magnus Rydén

Chalmers, Energy and Environment, Energy Technology

Anders Lyngfelt

Chalmers, Energy and Environment, Energy Technology

International Journal of Chemical Engineering

1687-806X (ISSN) 1687-8078 (eISSN)

Vol. 2014 412517

Innovative Oxygen Carriers Uplifting chemical-looping combustion (INNOCUOUS)

European Commission (FP7), 2010-10-01 -- 2015-04-30.

Subject Categories

Energy Engineering

Other Chemical Engineering

Areas of Advance

Energy

DOI

10.1155/2014/412517

More information

Latest update

6/11/2018