Supercritical fluid impregnation of wood with biocides using temperature reduction to induce deposition |
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| Authors: | Sung-Mo Kang Keith L Levien J J Morrell |
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| Institution: | (1) Department of Wood Science and Engineering, Oregon State University, Corvallis, OR 97331, USA;(2) Korean Wood Preservation Research Institute, Seoul, Korea;(3) Department of Chemical Engineering, Oregon State University, Corvallis, OR 97331, USA |
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| Abstract: | The potential for using temperature reductions to induce biocide deposition at the end of biocide treatment was assessed using
Cyproconazole to treat ponderosa pine sapwood boards. Temperature-induced deposition produced higher biocide loadings and
steeper preservative gradients from the surface inward than the more commonly used pressure-induced deposition. The results
are discussed in relation to treatment results, process time, and the ability to recover treatment components. |
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| Keywords: | Supercritical fluids Cyproconazole Preservative distribution |
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