Fast pyrolysis of creosote treated wood ties in a fluidized bed reactor and analytical characterization of product fractions

Su Hwa Jung, Won Mo Koo, Joo Sik Kim

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16 Scopus citations

Abstract

A fraction of creosote treated wood ties was pyrolyzed in a pyrolysis plant equipped with a fluidized bed reactor and char-separation system at different temperatures. Analyses of each pyrolysis product, especially the oil, were carried out using a variety of analytical tools. The maximum oil yield was obtained at 458 °C with a value of 69.3wt%. Oils obtained were easily separated into two phases, a creosote-derived fraction (CDF) and a wood-derived fraction (WDF). Major compounds of the WDF were acetic acid, furfural and levoglucosan, while the CDF was mainly composed of polycyclic aromatic hydrocarbons (PAHs), such as 1-methylnaphthalene, biphenyl, acenaphthene, dibenzofuran, fluorene, phenanthrene, anthracene, fluoranthene and pyrene. HPLC analysis showed that the concentration of PAHs of the CDF obtained at 458°C constituted about 22.5wt% of the oil.

Original languageEnglish
Pages (from-to)33-39
Number of pages7
JournalEnergy
Volume53
DOIs
StatePublished - 1 May 2013

Keywords

  • Creosote
  • Fluidized bed
  • Oil
  • Polycyclic aromatic hydrocarbons (PAHs)
  • Pyrolysis

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