Characteristics of products from fast pyrolysis of fractions of waste square timber and ordinary plywood using a fluidized bed reactor

Su Hwa Jung, Seon Jin Kim, Joo Sik Kim

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23 Scopus citations

Abstract

Fractions of waste square timber and waste ordinary plywood were pyrolyzed in a pyrolysis plant equipped with a fluidized bed reactor and a dual char separation system. The maximum bio-oil yield of about 65. wt.% was obtained at reaction temperatures of 450-500 °C for both feed materials. For quantitative analysis of bio-oil, the relative response factor (RRF) of each component was calculated using an effective carbon number (ECN) that was multiplied by the peak area of each component detected by a GC-FID. The predominant compounds in the bio-oils were methyl acetate, acids, hydroxyacetone, furfural, non-aromatic ketones, levoglucosan and phenolic compounds. The WOP-derived bio-oil showed it to have relatively high nitrogen content. Increasing the reaction temperature was shown to have little effect on nitrogen removal. The ash and solid contents of both bio-oils were below 0.1. wt.% due to the excellent performance of the char separation system.

Original languageEnglish
Pages (from-to)670-676
Number of pages7
JournalBioresource Technology
Volume114
DOIs
StatePublished - Jun 2012

Keywords

  • Fluidized bed
  • Plywood
  • Pyrolysis
  • Relative response factor
  • Square timber

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