Innovative Oxygen Carrier Materials for Chemical-Looping Combustion
Conference contribution, 2013

In chemical-looping combustion, the oxygen needed for combustion of fuel is provided by metal oxides called oxygen carriers, and inherent separation of CO2 is achieved without energy penalty. For gaseous fuels, such as natural gas, Ni-based oxygen carriers have generally been shown to be the most reactive. But as Ni-based materials are burdened by high costs and environmental risks with respect to toxicity, it is of high importance to find viable non-Ni alternatives. In the EU-financed project INNOCUOUS, one of the key issues is to find novel non-Ni based oxygen carriers. In this paper results from reactivity investigations of three groups of oxygen carrier materials are reported. The materials were prepared by spray-drying, and are based on 1) CuO, 2) Ca-Mn-X-O where X = Cu, Fe, Ti and Mg, and 3) Mg-Mn-O. A number of materials showed a combination of sufficient mechanical strength, high release of gas phase oxygen and high reactivity with methane, and can thus be considered viable alternatives to Ni-based materials.

Author

Dazheng Jing

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Tobias Mattisson

Chalmers, Energy and Environment, Energy Technology

Magnus Rydén

Chalmers, Energy and Environment, Energy Technology

Peter Hallberg

Chalmers, Energy and Environment, Energy Technology

Ali Hedayati

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Jasper van Noyen

Flemish Institute for Technological Research

Frans Snijkers

Flemish Institute for Technological Research

Anders Lyngfelt

Chalmers, Energy and Environment, Energy Technology

Energy Procedia

18766102 (ISSN)

Vol. 37 645-653

Subject Categories

Energy Engineering

Areas of Advance

Energy

DOI

10.1016/j.egypro.2013.05.152

More information

Latest update

6/11/2018