Bio-mass derived oils have the potential to offset our dependence on fossil fuels. However, bio-oils contain compounds with various functional groups that can be corrosive to structural alloys. As such, bio-oil materials compatibilities for long-term production and storage of bio-oils need to be qualified. Analysis of corrosion products formed on the surfaces of alloy specimens helped identify some of the corrosive species in bio-oils. Our preliminary results showed that small organic carboxylic acids are the primary corrosive species found in fast pyrolysis bio-oils. Quantification of these species using various analytical tools is important for assessment of the level of corrosiveness of bio-oils. This presentation will highlight some of our analytical techniques used to speciate and quantify corrosive compounds in bio-derived oils. In addition, mitigation of corrosion by pre-treatment of bio-oils will be presented. The results of this work will help in understanding the corrosion mechanism and ultimately deciding which materials are most suitable as structural components for production and storage of bio-oils.

Alloy corrosion studies and analysis of corrosive compounds in bio-derived oils

ACS Fall 2020 Virtual Meeting

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