Tailoring the characteristics of carbonized wood charcoal by using different heating rates

Gu Joong Kwon, Dae Young Kim, Choong Hyeon Oh, Byung Ho Park, Joo Hyon Kang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This study examined the characteristics of charcoals generated from White Lauan (Pentacmecontorta) and Punah (Tetrameristaglabra) by using different carbonization temperatures and heating rates. The scanning electron micrographs showed vestured pits in the White Lauan and raphide crystals in Punah as their respective anatomical characteristics. A slower heating rate resulted in a lower temperature to obtain the same amount of weight loss, regardless of the species being tested. A greater charcoal yield was obtained at a higher heating rate. The specific surface area was smaller in the charcoal produced at a higher carbonization temperature, but the heating rate had little effected. For both wood species, the axial compressive strength of the charcoal increased as the carbonization temperature was increased. The X-ray diffractograms of White Lauan and Punah woods heated at 1200°C indicated thermal decomposition of the crystal structure of cellulose, but no appreciable structural changes occurred under the tested heating rate conditions. Overall, the heating rate affected the charcoal yield but not the specific surface area, compressive strength, and crystal structure.

Original languageEnglish
Pages (from-to)1474-1478
Number of pages5
JournalJournal of the Korean Physical Society
Volume64
Issue number10
DOIs
StatePublished - May 2014

Keywords

  • Carbonization
  • Nano-materials
  • Wood charcoal

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