Impact of support (MCF, ZrO2, ZSM-5) on the efficiency of Ni catalyst in high-temperature conversion of lignocellulosic biomass to hydrogen-rich gas

Jacek Grams, Robert Ryczkowski, Karolina Chałupka, Izabela Sobczak, Izabela Rzeźnicka, Kamila Przybysz

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The main objective of this work was to evaluate an impact of a support on the efficiency of nickel catalysts in the high-temperature conversion of lignocellulosic biomass to hydrogen-rich gas. The most important parameters influencing catalytic performance of the catalysts were identified. The properties of three materials (ZSM-5, ZrO2, and MCF (mesostructured cellular foam)) used as a support differing in surface acidity, surface area, pore structure, ability to interact with an active phase, and resistance to coking, have been studied. The results revealed that Ni/MCF, characterized by large pore size and pore volume, low acidity, small NiO crystallites size, and moderate interaction with the active phase, is the most efficient among studied catalysts, while an application of Ni on ZSM-5 support with high-acidity was not beneficial. The results suggest that structure of the support, in particular larger pore size and a better contact between an active phase and reaction intermediates, play an important role in the formation of gaseous products during thermal decomposition of lignocellulosic feedstock. On the other hand, high acidity of the support did not increase the formation of large amounts of hydrogen-rich gaseous products.

Original languageEnglish
Article number3792
JournalMaterials
Volume12
Issue number22
DOIs
Publication statusPublished - 2019 Nov 1

Keywords

  • Cellulose
  • Hydrogen-rich gas
  • Lignocellulosic biomass
  • MCF
  • Nickel catalyst
  • Pyrolysis
  • Thermal decomposition
  • Zeolite
  • ZrO

ASJC Scopus subject areas

  • Materials Science(all)

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