Generation of syngas through autothermal partial oxidation of glycerol over LaMnO3- and LaNiO3-coated monoliths

Shih Kang Liu, Yu Chuan Lin

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)62-70
Number of pages9
JournalCatalysis Today
Volume237
DOIs
Publication statusPublished - 2014 Nov 15

All Science Journal Classification (ASJC) codes

  • Catalysis
  • General Chemistry

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