Biohydrogen production from catalytic conversion of food waste via steam and air gasification using eggshell- and homo-type Ni/Al 2 O 3 catalysts

Steam and air gasification with 5 wt% Ni/Al O eggshell (Ni-EG) and homo (Ni-H) catalysts were performed for the first time to produce biohydrogen from food waste. The steam gasification produced comparably higher gas yield than air gasification. In non-catalytic experiments, steam gasification gener...

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Bibliographic Details
Published inBioresource technology Vol. 320; no. Pt B; p. 124313
Main Authors Valizadeh, Soheil, Lam, Su Shiung, Ko, Chang Hyun, Lee, See Hoon, Farooq, Abid, Yu, Yeon Jeong, Jeon, Jong-Ki, Jung, Sang-Chul, Rhee, Gwang Hoon, Park, Young-Kwon
Format Journal Article
LanguageEnglish
Published England 01.01.2021
Subjects
Animals
Biomass
Catalysis
Egg Shell
Food
Refuse Disposal
Steam
Food waste
Eggshell-type catalyst
Thermal conversion
Gasification
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Summary:Steam and air gasification with 5 wt% Ni/Al O eggshell (Ni-EG) and homo (Ni-H) catalysts were performed for the first time to produce biohydrogen from food waste. The steam gasification produced comparably higher gas yield than air gasification. In non-catalytic experiments, steam gasification generated a higher volume percent of H , whereas more CO, CO , CH , and C -C were produced in air gasification. Ni-EG demonstrated higher potential to obtain H -rich gases with a low C -C content compared to that obtained by Ni-H, particularly in steam gasification at 800 °C, which produced gaseous products with 59.48 vol% H . The long-term activity of both catalysts in steam gasification was evaluated, and Ni-EG exhibited higher stability than Ni-H. The ideal distribution of Ni species on the outer region of γ-Al O pellets in Ni-EG resulted in higher activity, stability, and selectivity than Ni-H in both steam and air gasification.
ISSN:1873-2976