Hydrodeoxygenation of oxidized distilled bio-oil for the production of gasoline fuel type

•Oxidation had more influence on the yield of total hydrocarbons than distillation.•The highest total hydrocarbon yield was obtained from oxidized distilled bio-oil.•The 2nd-stage hydrocarbons were in the range of gasoline fuel boiling points.•The main products for upgrading of oxidized bio-oil were...

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Bibliographic Details
Published in:Energy conversion and management 2016-03, Vol.112, p.319-327
Main Authors: Luo, Yan, Guda, Vamshi Krishna, Hassan, El Barbary, Steele, Philip H., Mitchell, Brian, Yu, Fei
Format: Article
Language:English
Subjects:
Aliphatic compounds
Aliphatic hydrocarbons
Distilled bio-oil
Fuels
Gasoline
GC/MS
Heating
Hydrocarbons
Hydrodeoxygenation
Moisture content
Oxidation
Raw
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Summary:•Oxidation had more influence on the yield of total hydrocarbons than distillation.•The highest total hydrocarbon yield was obtained from oxidized distilled bio-oil.•The 2nd-stage hydrocarbons were in the range of gasoline fuel boiling points.•The main products for upgrading of oxidized bio-oil were aliphatic hydrocarbons.•The main products for upgrading of non-oxidized bio-oil were aromatic hydrocarbons. Distilled and oxidized distilled bio-oils were subjected to 1st-stage mild hydrodeoxygenation and 2nd-stage full hydrodeoxygenation using nickel/silica–alumina catalyst as a means to enhance hydrocarbon yield. Raw bio-oil was treated for hydrodeoxygenation as a control to which to compare study treatments. Following two-stage hydrodeoxygenation, four types of hydrocarbons were mainly comprised of gasoline and had water contents, oxygen contents and total acid numbers of nearly zero and higher heating values of 44–45MJ/kg. Total hydrocarbon yields for raw bio-oil, oxidized raw bio-oil, distilled bio-oil and oxidized distilled bio-oil were 11.6, 16.2, 12.9 and 20.5wt.%, respectively. The results indicated that oxidation had the most influence on increasing the yield of gasoline fuel type followed by distillation. Gas chromatography/mass spectrometry characterization showed that 66.0–76.6% of aliphatic hydrocarbons and 19.5–31.6% of aromatic hydrocarbons were the main products for oxidized bio-oils while 35.5–38.7% of aliphatic hydrocarbons and 58.2–63.1% of aromatic hydrocarbons were the main products for non-oxidized bio-oils. Both aliphatic and aromatic hydrocarbons are important components for liquid transportation fuels and chemical products.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2015.12.047