Synthesis of Fe/CaO active sorbent for CO2 absorption and tars removal in biomass gasification

Effects of Fe contents on fast pyrolysis of biomass with Fe/CaO catalysts

“…It has been reported that Fe-based catalysts were efficient in tar removal during the biomass gasification, and the Fe/CaO catalysts have been used in biomass gasification-reforming reactions, aiming to produce hydrogen or synthesis gas [26,27]. Huang et al have investigated the effects of Fe/CaO catalysts on the biomass gasification in a fluidized bed reactor, and they found that the H 2 production yield was increased when Fe was loaded from 0% to 15% [27].…”

Enhanced CO2 capture by biomass-templated Ca(OH)2-based pellets

“…Maintaining a high make-up flow to replace the spent sorbents and elutriated materials has been found to negatively influence the economics of the process [12]. As a result, there have been extensive research efforts to improve the reactivity of the sorbent by chemical doping [10,[13][14][15], organic acid treatment [16][17][18][19], and hydration [20]. In some cases of doping CaO-based material with metals, doped sorbents exhibited low performance, even inferior to that of the undoped material, such as in the case of doping CaO with the alkali metal lithium [13].…”

Improvement of steam reforming of toluene by CO2 capture using Fe/CaO–Ca12Al14O33 bi-functional materials

“…The CaO sorbent previously optimized from calcium acetate precursor [19], was obtained after a calcination of calcium acetate hydrate (Ca 2 (CH 3 COO) 2 reagent-grade from Sigma Aldrich) with a temperature ramp of 3 C min À1 up to 750 C and then 4 h at this temperature.…”

“…The bi-functional materials Fe/CaO and Fe/CaOeCa 12 Al 14 O 33 with 10 wt% of iron were prepared by mechanical mixture according to the method previously described [19].…”