Spontaneous Aerosol Ejection

Origin of Inorganic Particles in Biomass Pyrolysis

Andrew R. Teixeira, Rachel Gantt, Kristeen E. Joseph, Saurabh Maduskar, Alex D. Paulsen, Christoph Krumm, Cheng Zhu, Paul J Dauenhauer

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

At high thermal flux and temperatures of approximately 500 °C, lignocellulosic biomass transforms to a reactive liquid intermediate before evaporating to condensable bio-oil for downstream upgrading to renewable fuels and chemicals. However, the existence of a fraction of nonvolatile compounds in condensed bio-oil diminishes the product quality and, in the case of inorganic materials, catalyzes undesirable aging reactions within bio-oil. In this study, ablative pyrolysis of crystalline cellulose was evaluated, with and without doped calcium, for the generation of inorganic-transporting aerosols by reactive boiling ejection from liquid intermediate cellulose. Aerosols were characterized by laser diffraction light scattering, inductively coupled plasma spectroscopy, and high-speed photography. Pyrolysis product fractionation revealed that approximately 3 % of the initial feed (both organic and inorganic) was transported to the gas phase as aerosols. Large bubble-to-aerosol size ratios and visualization of significant late-time ejections in the pyrolyzing cellulose suggest the formation of film bubbles in addition to the previously discovered jet formation mechanism.

Original languageEnglish (US)
Pages (from-to)1322-1328
Number of pages7
JournalChemSusChem
Volume9
Issue number11
DOIs
StatePublished - Jun 8 2016

Fingerprint

Aerosols
pyrolysis
Particles (particulate matter)
cellulose
Biomass
Pyrolysis
Cellulose
aerosol
Oils
bubble
oil
biomass
liquid
light scattering
formation mechanism
photography
High speed photography
diffraction
visualization
Liquids

Keywords

  • aerosols
  • biomass
  • calcium
  • cellulose
  • pyrolysis

Cite this

Teixeira, A. R., Gantt, R., Joseph, K. E., Maduskar, S., Paulsen, A. D., Krumm, C., ... Dauenhauer, P. J. (2016). Spontaneous Aerosol Ejection: Origin of Inorganic Particles in Biomass Pyrolysis. ChemSusChem, 9(11), 1322-1328. https://doi.org/10.1002/cssc.201600112

Spontaneous Aerosol Ejection : Origin of Inorganic Particles in Biomass Pyrolysis. / Teixeira, Andrew R.; Gantt, Rachel; Joseph, Kristeen E.; Maduskar, Saurabh; Paulsen, Alex D.; Krumm, Christoph; Zhu, Cheng; Dauenhauer, Paul J.

In: ChemSusChem, Vol. 9, No. 11, 08.06.2016, p. 1322-1328.

Research output: Contribution to journalArticle

Teixeira, AR, Gantt, R, Joseph, KE, Maduskar, S, Paulsen, AD, Krumm, C, Zhu, C & Dauenhauer, PJ 2016, 'Spontaneous Aerosol Ejection: Origin of Inorganic Particles in Biomass Pyrolysis', ChemSusChem, vol. 9, no. 11, pp. 1322-1328. https://doi.org/10.1002/cssc.201600112
Teixeira AR, Gantt R, Joseph KE, Maduskar S, Paulsen AD, Krumm C et al. Spontaneous Aerosol Ejection: Origin of Inorganic Particles in Biomass Pyrolysis. ChemSusChem. 2016 Jun 8;9(11):1322-1328. https://doi.org/10.1002/cssc.201600112
Teixeira, Andrew R. ; Gantt, Rachel ; Joseph, Kristeen E. ; Maduskar, Saurabh ; Paulsen, Alex D. ; Krumm, Christoph ; Zhu, Cheng ; Dauenhauer, Paul J. / Spontaneous Aerosol Ejection : Origin of Inorganic Particles in Biomass Pyrolysis. In: ChemSusChem. 2016 ; Vol. 9, No. 11. pp. 1322-1328.
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