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Title
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Valorisation of bio-oil resulting from fast pyrolysis of wood
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Author
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Abstract
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| Bio-oil resulting from the pyrolysis of lignocellulose is a complex mixture of polar low molecular mass oxygenated compounds of various functionalities and non-polar high molecular mass lignin derivatives. Several approaches to the upgrading of bio-oil are currently in progress. This study investigates the valorisation of crude bio-oil using physical and chemical methods. The effects of methanol addition on some properties of the bio-oil are investigated. Stable bio-oil/diesel oil emulsions are produced by the addition of surfactants with a hydrophilic-lipophilic balance value of 56. An alternative approach towards the upgrading of bio-oil is the hydrotreatment of the water-soluble fraction of bio-oil. Two-stage hydroprocessing with noble-metal catalysts Ru/C and Pt/C increases the intrinsic hydrogen content of the water-soluble fraction. The results show that the thermally unstable components including sugars, ketones and aldehydes are readily converted to diols and alcohols at pressures of 5 MPa. These observations can be explained by a set of reaction pathways for the compounds identified. |
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Language
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English
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Source (journal)
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Chemical papers. - Bratislava, 2007, currens
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Chemical papers
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Publication
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Bratislava
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2014
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ISSN
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2585-7290
[print]
1336-9075
[online]
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DOI
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10.2478/S11696-014-0541-Y
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Volume/pages
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68
:9
(2014)
, p. 1205-1212
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ISI
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000336443400007
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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