Aerosol generation by reactive boiling ejection of molten cellulose

Andrew R. Teixeira, Kyle G. Mooney, Jacob S. Kruger, C. Luke Williams, Wieslaw J. Suszynski, Lanny D. Schmidt, David P. Schmidt, Paul J. Dauenhauer

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Abstract

The generation of primary aerosols from biomass hinders the production of biofuels by pyrolysis, intensifies the environmental impact of forest fires, and exacerbates the health implications associated with cigarette smoking. High speed photography is utilized to elucidate the ejection mechanism of aerosol particles from thermally decomposing cellulose at the timescale of milliseconds. Fluid modeling, based on first principles, and experimental measurement of the ejection phenomenon supports the proposed mechanism of interfacial gas bubble collapse forming a liquid jet which subsequently fragments to form ejected aerosol particles capable of transporting nonvolatile chemicals. Identification of the bubble-collapse/ejection mechanism of intermediate cellulose confirms the transportation of nonvolatile material to the gas phase and provides fundamental understanding for predicting the rate of aerosol generation.

Original languageEnglish (US)
Pages (from-to)4306-4321
Number of pages16
JournalEnergy and Environmental Science
Volume4
Issue number10
DOIs
StatePublished - Oct 1 2011

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Teixeira, A. R., Mooney, K. G., Kruger, J. S., Williams, C. L., Suszynski, W. J., Schmidt, L. D., Schmidt, D. P., & Dauenhauer, P. J. (2011). Aerosol generation by reactive boiling ejection of molten cellulose. Energy and Environmental Science, 4(10), 4306-4321. https://doi.org/10.1039/c1ee01876k