Alkaline-Earth-Metal-Catalyzed Thin-Film Pyrolysis of Cellulose

Cheng Zhu, Saurabh Maduskar, Alex D. Paulsen, Paul J. Dauenhauer

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The conversion of lignocellulosic biomass to "bio-oils" by thermochemical pyrolysis is a promising reactor technology for renewable chemicals and biofuels. Although the fundamental understanding of relevant catalysts within reacting biomass particles is only in its infancy, it is known that inorganic materials naturally present within biomass act as catalysts that limit the yield of bio-oil and alter the product distribution. In this work, the effect of alkaline earth metals on cellulose pyrolysis chemistry was investigated to determine the catalytic effect on primary (transport-free) and secondary (diffusion-limited) reaction pathways. The catalytic materials included homogeneous metal ions Ca2+ and Mg2+ from their inorganic salts, Ca(NO3)2 and Mg(NO3)2, and their corresponding heterogeneous metal oxides, CaO and MgO. Although the oxides had a limited impact on cellulose pyrolysis chemistry, the metal ions altered the secondary reaction pathways of cellulose significantly under diffusion-limited conditions common to lignocellulosic particles within industrial reactors.

Original languageEnglish (US)
Pages (from-to)818-829
Number of pages12
JournalChemCatChem
Volume8
Issue number4
DOIs
StatePublished - Feb 18 2016

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Alkaline Earth Metals
Alkaline earth metals
alkaline earth metals
biomass
cellulose
Cellulose
pyrolysis
Biomass
Pyrolysis
Thin films
Oxides
Metal ions
metal ions
Oils
thin films
oils
reactor technology
chemistry
catalysts
Catalysts

Keywords

  • biomass
  • calcium
  • magnesium
  • reaction mechanisms
  • thin films

Cite this

Alkaline-Earth-Metal-Catalyzed Thin-Film Pyrolysis of Cellulose. / Zhu, Cheng; Maduskar, Saurabh; Paulsen, Alex D.; Dauenhauer, Paul J.

In: ChemCatChem, Vol. 8, No. 4, 18.02.2016, p. 818-829.

Research output: Contribution to journalArticle

Zhu, Cheng ; Maduskar, Saurabh ; Paulsen, Alex D. ; Dauenhauer, Paul J. / Alkaline-Earth-Metal-Catalyzed Thin-Film Pyrolysis of Cellulose. In: ChemCatChem. 2016 ; Vol. 8, No. 4. pp. 818-829.
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