Optimization of spray dried attrition-resistant iron based oxygen carriers for chemical looping reforming

Enhanced performance of chemical looping combustion of methane with Fe2O3/Al2O3/TiO2oxygen carrier

“…The porosities of Fe 2 O 3 /Al 2 O 3 and Fe 2 O 3 /Al 2 O 3 /TiO 2 oxygen carriers were determined to be 49.13% and 59.60%, respectively. The physical properties of 60 wt% Fe 2 O 3 /Al 2 O 3 oxygen carriers reported by De Vos et al 16 were similar to the results of this study that the porosity was obtained to be in the range of 49.10–59.70%. 16 From the literature published by Breault et al 17 illustrated that the disappear of small grains due to the growth of larger grain promoted by high-temperature calcination, hence, the grain size and porosity become larger, while the specific surface area becomes smaller.…”

Development of Stable Oxygen Carrier Materials for Chemical Looping Processes—A Review

“…In literature, the general guideline for the minimum crushing strength needed for acceptable fluidized bed operation is determined to be 1 N [251][252][253][254][255]. It should, however, be noted that crushing strength values are sometimes reported without adding other important properties of the particles that also affect their strength, such as the particle size and porosity [256]. Essential information in such publications, needed for facilitating fair comparison between different oxygen carriers, should include:…”

Sustainable iron-based oxygen carriers for hydrogen production – Real-time operando investigation

“…The oxygen carrier was synthesized by a spray drying method according to our previous work [33,46]. Briefly, for the MgFeAl OC, 60 wt.% α-Fe2O3 (Alfa Aesar, 98% (metals basis), -325 mesh powder), 11.3 wt.% MgO (MAF Magnesite, MagChem 30) and 28.7 wt.% α-Al2O3 (Almatis, CT3000SG) particles (molar ratio MgO/Al2O3 is 1/1) were dispersed in de-ionized water with the necessary dispersants.…”