Oxygen-Carrier Development of Calcium Manganite–Based Materials with Perovskite Structure for Chemical-Looping Combustion of Methane
Artikel i vetenskaplig tidskrift, 2020

The present work is related to the upscaling of calcium m anganite–based oxygen-
carrier materials, which have a perovskite structure, both with respect to the use
of inexpensive raw materials, i.e., instead of pure chemicals, and the upscaling of
production to multitonne batches. Results are presented from the two different
stages of material development, i.e., raw material selectio n and upscaling. The
evaluation involves both operation in chemical-looping combustor units of 300 W
and 10 kW, and material characterization. In the latter unit, the gas velocities in
the riser and in the grid-jet zone of the gas distributor come close to gas velocities
of industrial-scale units and, therefore, this unit is also used to assess particle
lifetime. Results from the various chemical-looping combustion units and
oxygen-carrier mate rials produce d from various raw materials of both high and
low purity show that very high degrees of fuel conversion can be reached while
achieving very high oxygen-carrier lifetimes. The composition of the oxygen-
carrier materials seems robust and flexible with respect to the precursors used
in its manufacturing.

oxygen carriers

perovskites

CO 2 separation

chemical-looping combustion

fluidized-bed combustion

Författare

Patrick Moldenhauer

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik, Energiteknik 2

Peter Hallberg

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Max Biermann

Energiteknik 3

Frans Snijkers

VITO

Knuth Albertsen

Euro Support

Tobias Mattisson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Anders Lyngfelt

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Energy Technology

2194-4296 (eISSN)

Styrkeområden

Energi

Ämneskategorier

Kemiska processer

Annan kemi

Annan materialteknik

DOI

10.1002/ente.202000069

Mer information

Skapat

2020-05-04