Evaluation of different oxygen carriers for biomass tar reforming (II): Carbon deposition in experiments with methane and other gases

NiO supported on Al 2 O 3 and ZrO 2 oxygen carriers for chemical looping steam methane reforming

“…6). Similar trend was reported by Mendiara et al [24] on NiO/ NiAl 2 O 4 OTM. Since most of carbon comes from methane decomposition, a decrease in the amount of carbon deposition with cycles is an indirect representation of deactivation of NieZr in methane decomposition reaction.…”

“…This small decrease of weight may be due to removal of some carbon or CH x species that are loosely bound to the catalysts surface and/or solid state reaction between carbon and unreacted NiO. The latter hypothesis was proposed by Mendiara et al [24] and Jerndal et al [25] in studies with NiO supported on NiAl 2 O 4 support. Upon switching gas from He to air flow (at 80 min in Fig.…”

Chemical-looping auto-thermal reforming of biomass using Cu-based oxygen carrier

“…The desired OC should have these suitable properties [17]: high reactivity to reduce solids inventory; good selectivity to CO and H 2 ; high resistance to attrition and agglomeration/sintering; negligible carbon deposition; low costs and environmental friendly. Fe-, Ni-, Cu-, and Mn-based OCs supported on different inert materials and prepared by different methods have been investigated in chemical-looping system [1,18,19].…”

Chemical looping reforming of ethanol for syngas generation: A theoretical investigation

“…Mendiara et al . have experimentally studied the CLR using four different oxygen carriers and concluded that Mn‐based oxygen carrier was most efficient for low carbon formation with methane. Pimenidou et al .…”

“…Mihai et al [48] have studied LaFeO 3 as oxygen carrier for CLR of methane and discussed its high capacity of reversible oxygen storage and high selectivity to syngas. Mendiara et al [49] have experimentally studied the CLR using four different oxygen carriers and concluded that Mn-based oxygen carrier was most efficient for low carbon formation with methane. Pimenidou et al [50] have studied the sorption-enhanced CLR of waste cooking oil in a packed bed reactor and reported high purity hydrogen (>95%) at 600 C and 1 atm pressure.…”