In-situ measurement of dimensional changes during supercritical fluid impregnation of white spruce lumber

Gyu Hyeok Kim, Jeffrey J. Morrell

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Supercritical fluids can markedly enhance preservative treatment of wood, but the high pressures employed can lead to collapse. We investigated the effects of the rates of pressure application and release on displacement of white spruce lumber during supercritical impregnation with carbon dioxide. Displacement was greatest when pressure was rapidly increased at the start of the process. Conversely, rapid pressure release at the conclusion of the treatment process resulted in the lowest level of permanent displacement. The results suggest that wood displacement during supercritical fluid impregnation can be controlled by altering process variables for a given species.

Original languageEnglish
Pages (from-to)29-36
Number of pages8
JournalWood and Fiber Science
Volume32
Issue number1
Publication statusPublished - 2000 Jan 1

Fingerprint

Lumber
Supercritical fluids
Picea glauca
lumber
Impregnation
in situ measurement
fluid
Wood
wood treatment
preservative
preservatives
Carbon Dioxide
Carbon dioxide
carbon dioxide
fluids

Keywords

  • Collapse
  • Displacement
  • Pressure
  • Spruce
  • Supercritical fluids

ASJC Scopus subject areas

  • Forestry
  • Plant Science
  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)

Cite this

In-situ measurement of dimensional changes during supercritical fluid impregnation of white spruce lumber. / Kim, Gyu Hyeok; Morrell, Jeffrey J.

In: Wood and Fiber Science, Vol. 32, No. 1, 01.01.2000, p. 29-36.

Research output: Contribution to journalArticle

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