In situ catalytic pyrolysis of lignocellulose using alkali-modified amorphous silica alumina

M. Zabeti, T.S. Nguyen, Leonardus Lefferts, Kulathuiyer Seshan

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Abstract

Canadian pinewood was pyrolyzed at 450 °C in an Infrared oven and the pyrolysis vapors were converted by passing through a catalyst bed at 450 °C. The catalysts studied were amorphous silica alumina (ASA) containing alkali metal or alkaline earth metal species including Na, K, Cs, Mg and Ca. The catalysts effectiveness to reduce the bio-oil oxygen content, to enhance the bio-oil energy density and to change the liquid and gas product distribution were evaluated using different techniques including gravimetric analysis, elemental analysis, Karl–Fischer titration, GC/MS and micro-GC analysis. According to the results K/ASA found to be the most effective catalysts for conversion of hollocellulose (hemicellulose and cellulose)-derived vapors of pinewood while Cs/ASA catalyst was the most effective catalyst for conversion of lignin-derived vapors and production of hydrocarbons
Original languageEnglish
Pages (from-to)374-381
Number of pages8
JournalBioresource technology
Volume118
DOIs
Publication statusPublished - 2012

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Keywords

  • METIS-287273
  • IR-81098
  • Physical chemistryProduktie- en procestechnieken

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