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

Journal Article · · ChemCatChem
 [1];  [2];  [2];  [2]
  1. Univ. of Minnesota Twin Cities, Minneapolis, MN (United States); University of Minnesota
  2. Univ. of Minnesota Twin Cities, Minneapolis, MN (United States)
Here, 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.
Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012659
OSTI ID:
1865827
Journal Information:
ChemCatChem, Journal Name: ChemCatChem Journal Issue: 4 Vol. 8; ISSN 1867-3880
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English

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