Biomass pyrolysis-gasification over Zr promoted CaO-HZSM-5 catalysts for hydrogen and bio-oil co-production with CO2 capture

Zhao Sun, Sam Q Toan, Shiyi Chen, Wenguo Xiang, Maohong Fan, Min Zhu, Shiwei Ma

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In order to enhance biomass conversion technology, a three-stage conversion process for biomass pyrolysis-gasification with applied Zr modified CaO-HZSM-5 catalysts is proposed for hydrogen and bio-oil co-production with CO2 capture. The process is divided into three parts: biomass pyrolysis, steam biochar gasification, and catalyst regeneration with CO2 capture. The Zr modified CaO-HZSM-5 catalysts are prepared using ion exchange and incipient wetness impregnation methods. The bifunctional catalysts were characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), energy dispersive X-ray fluorescence (EDXRF), and transmission electron microscopy (TEM). The cycled CaO-Zr-ZSM-5 catalysts were also characterized by scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS). Results indicate that CaO-HZSM-5 catalyst shows the best bio-oil selectivity (56% of phenols and 73% of aromatic compounds determined by GC/MS). Furthermore, higher hydrogen yields and concentration can be obtained using the modified CaO-Zr/H-ZSM-5 catalysts.

Original languageEnglish (US)
Pages (from-to)16031-16044
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number25
DOIs
StatePublished - Jun 22 2017

Fingerprint

gasification
biomass
Gasification
pyrolysis
Biomass
Pyrolysis
oils
catalysts
Hydrogen
Catalysts
hydrogen
Bioconversion
Catalyst regeneration
Catalyst selectivity
Aromatic compounds
aromatic compounds
Impregnation
Phenols
Oils
Spectrometers

Keywords

  • Biomass
  • CO capture
  • Catalyst
  • Gasification
  • Hydrogen production
  • Pyrolysis

Cite this

Biomass pyrolysis-gasification over Zr promoted CaO-HZSM-5 catalysts for hydrogen and bio-oil co-production with CO2 capture. / Sun, Zhao; Toan, Sam Q; Chen, Shiyi; Xiang, Wenguo; Fan, Maohong; Zhu, Min; Ma, Shiwei.

In: International Journal of Hydrogen Energy, Vol. 42, No. 25, 22.06.2017, p. 16031-16044.

Research output: Contribution to journalArticle

Sun, Zhao ; Toan, Sam Q ; Chen, Shiyi ; Xiang, Wenguo ; Fan, Maohong ; Zhu, Min ; Ma, Shiwei. / Biomass pyrolysis-gasification over Zr promoted CaO-HZSM-5 catalysts for hydrogen and bio-oil co-production with CO2 capture. In: International Journal of Hydrogen Energy. 2017 ; Vol. 42, No. 25. pp. 16031-16044.
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