Open Access Publications
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Open access publications by faculty, staff, postdocs, and graduate students from the Catalysis Center for Energy Innovation.
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Browsing Open Access Publications by Author "Dauenhauer, Paul J."
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Item Reactive Liftoff of Crystalline Cellulose Particles(Nature Publishing Group, 2015-06-09) Teixeira, Andrew R.; Krumm, Christoph; Vinter, Katherine P.; Paulsen, Alex D.; Zhu, Cheng; Maduskar, Saurabh; Joseph, Kristeen E.; Greco, Katharine; Stelatto, Michael; Davis, Eric; Vincent, Brendon; Hermann, Richard; Suszynski, Wieslaw; Schmidt, Lanny D.; Fan, Wei; Rothstein, Jonathan P.; Dauenhauer, Paul J.; Andrew R. Teixeira, Christoph Krumm, Katherine P. Vinter, Alex D. Paulsen, Cheng Zhu, Saurabh Maduskar, Kristeen E. Joseph, Katharine Greco, Michael Stelatto, Eric Davis, Brendon Vincent, Richard Hermann, Wieslaw Suszynski, Lanny D. Schmidt, Wei Fan, Jonathan P. Rothstein & Paul J. Dauenhauer; Dauenhauer, Paul J.The condition of heat transfer to lignocellulosic biomass particles during thermal processing at high temperature (>400 °C) dramatically alters the yield and quality of renewable energy and fuels. In this work, crystalline cellulose particles were discovered to lift off heated surfaces by high speed photography similar to the Leidenfrost effect in hot, volatile liquids. Order of magnitude variation in heat transfer rates and cellulose particle lifetimes was observed as intermediate liquid cellulose droplets transitioned from low temperature wetting (500–600 °C) to fully de-wetted, skittering droplets on polished surfaces (>700 °C). Introduction of macroporosity to the heated surface was shown to completely inhibit the cellulose Leidenfrost effect, providing a tunable design parameter to control particle heat transfer rates in industrial biomass reactors.