H2 generation from steam gasification of swine manure over nickel-loaded perovskite oxides catalysts

Soheil Valizadeh, Yasin Khani, Hoesuk Yim, Suhyeong Chai, Dongwon Chang, Abid Farooq, Pau Loke Show, Byong Hun Jeon, Moonis Ali Khan, Sang Chul Jung, Young Kwon Park

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

In this study, nickel-loaded perovskite oxides catalysts were synthesized via the impregnation of 10%Ni on XTiO3 (X = Ce, Sr, La, Ba, Ca, and Fe) supports and employed in the catalytic steam gasification of swine manure to produce H2-rich syngas for the first time. The synthesized catalysts were characterized using BET, H2-TPR, XRD, HR-TEM, and EDX analysis. Briefly, using perovskite supports resulted in the production of ultrafine catalyst nanoparticles with a uniform dispersion of Ni particles. According to the catalytic activity test, the gas yield showed the increment as 10% Ni/LaTiO3 < 10% Ni/FeTiO3 < 10% Ni/CeTiO3 < 10% Ni/BaTiO3 < 10% Ni/SrTiO3 < 10% Ni/CaTiO3. Meanwhile, zero coke formation was achieved due to the oxygen mobility of prepared catalysts. Also, the increase in the H2 production for the applied catalysts was in the sequence as 10% Ni/CeTiO3 < 10% Ni/FeTiO3 < 10% Ni/LaTiO3 < 10% Ni/BaTiO3 < 10% Ni/SrTiO3 < 10% Ni/CaTiO3. The maximum H2 selectivity (∼48 vol%) obtained by10% Ni/CaTiO3 was probably due to the synergistic effect of Ni and Ti on enhancing the water-gas shift reaction, and Ca on creating the maximum oxygen mobility compared to other alkaline earth metals doped at the A place of perovskite. Overall, this study provides a suitable solution for enhanced H2 production through steam gasification of swine manure along with suggesting the appropriate supports to prevent Ni deactivation by lowering coke formation at the same time.

Original languageBritish English
Article number115070
JournalEnvironmental Research
Volume219
DOIs
StatePublished - 15 Feb 2023

Keywords

  • Catalytic gasification
  • Coke
  • Cow manure
  • Hydrogen
  • Ni loaded perovskite

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