Investigation of Cu-Fe and Mn-Ni oxides as oxygen carriers for chemical-looping combustion
Journal article, 2016
Combined Cu-Fe and Mn-Ni oxygen carriers were investigated as bed" materials for-chemical-looping combustion.,The aim was to identify material combinations which yield oxygen carriers with a high reactivity towards gaseous fuels, such as CO, H-2 and CH4, as well as sufficient mechanical durability. For this purpose, 18 different oxygen carriers were spray-dried and calcined at defined temperatures. Gas conversion as well as release of gaseous oxygen was-investigated in a batch fluidized bed reactor setup at temperatures between 850 and 1050 degrees C. For testing the mechanical durability; a jet-cup attrition rig was used. Moreover, properties like specific surface area, oxygen transfer capacity and crystalline phase composition were examined to physically and chemically characterize the oxygen carrier particles. For both the Cu-Fe and Mn-Ni-based materials, oxygen carriers could be produced which showed a high reactivity with gaseous fuels like CO or CH4 while having a sufficiently high mechanical strength. These properties make them interesting candidates for application in chemical-looping combustion. (C) 2016 Elsevier B.V. All rights reserved.
Manganese-nickel oxides
gas
system
solid fuels
Copper-iron oxides
Energy & Fuels
Chemistry
Chemical-looping combustion (CLC)
particles
reactor
Combined oxides oxygen carrier
kinetics
Chemical-looping with oxygen uncoupling (CLOU)
coal
Engineering
operation
copper-oxide
Author
Volkmar Frick
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Magnus Rydén
Chalmers, Energy and Environment, Energy Technology
Henrik Leion
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Fuel Processing Technology
0378-3820 (ISSN)
Vol. 150 30-40Subject Categories
Inorganic Chemistry
DOI
10.1016/j.fuproc.2016.04.032