TY - JOUR
T1 - Generation of syngas through autothermal partial oxidation of glycerol over LaMnO3- and LaNiO3-coated monoliths
AU - Liu, Shih Kang
AU - Lin, Yu Chuan
N1 - Publisher Copyright:
© 2013 Elsevier B.V. All rights reserved.
PY - 2014/11/15
Y1 - 2014/11/15
N2 - This study presents a side-by-side comparison of LaMnO3 and LaNiO3 perovskites in the autothermalpartial oxidation of glycerol to syngas. Pure glycerol and glycerol/water solutions were converted tosyngas under adiabatic conditions. The addition of water suppressed glycerol conversion and reactiontemperature, but increased H2 selectivity with the appropriate steam-to-glycerol feed ratio. Catalyticresults show that LaMnO3 is more active than LaNiO3 in autothermal partial oxidation because of itscombustion-prone nature. In contrast, LaNiO3 produced higher H2 selectivity than LaMnO3 did. A com-parative study of LaMnO3 and LaNiO3 in glycerol steam reforming and water-gas shift was performed as well to reveal how these H2-production reactions proceed in the oxygen-deficient regime of a catalyst bed.The outcomes indicate that LaNiO3 is more active than LaMnO3 in these two reactions, thereby enhancing H2 selectivity in a partial oxidation system. Moreover, a 24-h lifetime test of these two perovskites was conducted, showing that LaMnO3has greater durability.
AB - This study presents a side-by-side comparison of LaMnO3 and LaNiO3 perovskites in the autothermalpartial oxidation of glycerol to syngas. Pure glycerol and glycerol/water solutions were converted tosyngas under adiabatic conditions. The addition of water suppressed glycerol conversion and reactiontemperature, but increased H2 selectivity with the appropriate steam-to-glycerol feed ratio. Catalyticresults show that LaMnO3 is more active than LaNiO3 in autothermal partial oxidation because of itscombustion-prone nature. In contrast, LaNiO3 produced higher H2 selectivity than LaMnO3 did. A com-parative study of LaMnO3 and LaNiO3 in glycerol steam reforming and water-gas shift was performed as well to reveal how these H2-production reactions proceed in the oxygen-deficient regime of a catalyst bed.The outcomes indicate that LaNiO3 is more active than LaMnO3 in these two reactions, thereby enhancing H2 selectivity in a partial oxidation system. Moreover, a 24-h lifetime test of these two perovskites was conducted, showing that LaMnO3has greater durability.
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U2 - 10.1016/j.cattod.2013.12.028
DO - 10.1016/j.cattod.2013.12.028
M3 - Article
AN - SCOPUS:84908550676
SN - 0920-5861
VL - 237
SP - 62
EP - 70
JO - Catalysis Today
JF - Catalysis Today
ER -