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Study Data from North Carolina State University Update Understanding of Chemistry Engineering (Toward Understanding of Bio-Oil Aging: Accelerated...

September 10, 2014

Study Data from North Carolina State University Update Understanding of Chemistry Engineering (Toward Understanding of Bio-Oil Aging: Accelerated Aging of Bio-Oil Fractions)

By a News Reporter-Staff News Editor at Journal of Engineering -- Research findings on Engineering are discussed in a new report. According to news reporting originating in Raleigh, North Carolina, by VerticalNews journalists, research stated, "Pyrolysis bio-oil from biomass is a promising intermediate for producing transportation fuels and platform chemicals. However, its instability, often called aging, has been identified as a critical hurdle that prevents bio-oil from being commercialized."

The news reporters obtained a quote from the research from North Carolina State University, "The objective of this research is to explore the bio-oil aging mechanism by an accelerated aging test of fractionated bio-oil produced from loblolly pine. When water soluble (WS), ether insoluble (EIS), and pyrolytic lignin (PL) fractions were aged separately, the increased molecular weight (Mw) was observed with increasing aging temperature and the presence of acids. WS and EIS fractions had high Mw brown solids formed after aging. Adjusting the pH of WS and EIS fractions from 2.5 to 7.0 significantly reduced the tendency of a Mw increase. Similar Mw rise was also observed on a PL fraction with an elevated temperature and acid addition. Formaldehyde was found to react with the PL fraction in the presence of any acid catalysts tested, i.e., 8-fold Mw increase in acetic acid environment, while other bio-oil aldehydes did not significantly promote lignin condensation."

According to the news reporters, the research concluded: "To better understand bio-oil stability, a potential bio-oil aging pattern was proposed, suggesting that bio-oil can be aged within or between its fractions."

For more information on this research see: Toward Understanding of Bio-Oil Aging: Accelerated Aging of Bio-Oil Fractions. ACS Sustainable Chemistry & Engineering, 2014;2(8):2011-2018. ACS Sustainable Chemistry & Engineering can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA.

Our news correspondents report that additional information may be obtained by contacting J.J. Meng, North Carolina State University, Dept. of Forest Biomat, Raleigh, NC 27695, United States. Additional authors for this research include A. Moore, D. Tilotta, S. Kelley and S. Park.

Keywords for this news article include: Raleigh, North Carolina, United States, North and Central America, Engineering

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Source: Journal of Engineering

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