467202 Supercritical Fluid Processing of Biomass-Derived Pyrolysis Oil
A particularly attractive scenario is to efficiently separate out multiple fractions of bio-oil so that each portion can be treated with a process specifically tailored to the functionalities present in that phase. Bio-oil can be selectively condensed to create multiple fractions, or separated during post-processing. Efficient extractive post-processing is an appealing approach due to the potential for tailoring an extraction for specific components, and facilitating in-situ upgrading where hydrotreating/cracking can be performed during the extraction. Supercritical fluid processing is especially promising for this application due to the ease of solvent recovery, good solvency for organic chemicals and the flexibility of tailoring the solvent for desired chemical fractions. Results of supercritical fluid processing of biomass-derived pyrolysis oil will be presented. This includes characterization of the fractions obtained during various processing conditions as well as conversion strategies tailored to these specific fractions.
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