| Improving the Environmental Profile of Wood Panels via Co-Production of Ethanol and Acetic Acid. | |
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MedLine Citation:
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PMID: 21967719 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The oriented strand board (OSB) biorefinery is an emerging technology that could improve the building, transportation and chemical sectors' environmental profile. By adding a hot water extraction stage to conventional OSB panel manufacturing, hemicellulose polysaccharides can be extracted from wood strands and converted to renewably sourced ethanol and acetic acid. Replacing fossil-based gasoline and acetic acid has the potential to reduce greenhouse gas (GHG) emissions, among other possible impacts. At the same time, hemicellulose extraction could improve the environmental profile of OSB panels by reducing the level of volatile organic compounds (VOCs) emitted during manufacturing. In this study, the life cycle significance of such GHG, VOC and other emission reductions were investigated. A process model was developed based on a mix of laboratory and industrial-level mass and energy flow data. Using this data a life cycle assessment (LCA) model was built. Sensitive process parameters were identified and used to develop a best case production scenario for the OSB biorefinery. The findings suggest that the OSB biorefinery's deployment could substantially improve human and ecosystem health via reduction of select VOCs compared to conventionally produced OSB, gasoline and acetic acid. Technological advancements are needed, however, to achieve desirable GHG reductions. |
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Authors:
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Mason Earles; Anthony Halog; Stephen Shaler |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-3 |
Journal Detail:
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Title: Environmental science & technology Volume: - ISSN: 1520-5851 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-4 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0213155 Medline TA: Environ Sci Technol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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