Catalytic gasification of mandarin waste residue using Ni/CeO2-ZrO2

Seong Soo Kim, Jeong Wook Kim, Sung Hoon Park, Sang Chul Jung, Jong Ki Jeon, Changkook Ryu, Young Kwon Park

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4 Scopus citations


Catalytic gasification of mandarin waste residue was carried out using direct and indirect catalyst-contact methods for the first time. In the indirect method, non-catalytic reaction in a reactor was followed by catalytic upgrading of vapor product in another reactor. Two different catalysts, Ni/?-Al2O3 and Ni/CeO2-ZrO2, were employed. CeO2-ZrO2 support was prepared using hydrothermal synthesis in supercritical water. The catalysts were characterized by H2-temperature programmed reduction and Brunauer-Emmett-Teller analyses. Under the condition of equivalent ratio (ER) = 0, the indirect catalyst-contact method led to a higher gas yield than the direct method. Under ER = 0.2, the yield of biogas obtained over Ni/CeO2-ZrO2 was higher than that obtained over Ni/?-Al2O3. Also, the coke formation of Ni/CeO2-ZrO2 was lower than that of Ni/?-Al2O3. Such results were attributed to the higher reducibility and better lattice oxygen mobility of Ni/CeO2-ZrO2, which were advantageous for partial oxidation reaction.

Original languageEnglish
Pages (from-to)3387-3390
Number of pages4
JournalBulletin of the Korean Chemical Society
Issue number11
StatePublished - 20 Nov 2013


  • Catalytic gasification
  • Hydrogen
  • Ni/CeO2-ZrO2
  • Waste mandarin residue


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