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International Journal of Chemical Reactor Engineering

Ed. by de Lasa, Hugo / Xu, Charles Chunbao

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Rapid Solar-thermal Decarbonization of Methane in a Fluid-wall Aerosol Flow Reactor -- Fundamentals and Application

Jeffrey Wyss
  • 1University of Colorado,
/ Janna Martinek
  • 2University of Colorado,
/ Michael Kerins
  • 3University of Colorado,
/ Jaimee K Dahl
  • 4University of Colorado,
/ Alan Weimer
  • 5University of Colorado,
/ Allan Lewandowski
  • 6National Renewable Energy Laboratory,
/ Carl Bingham
  • 7National Renewable Energy Laboratory,
Published Online: 2007-10-02 | DOI: https://doi.org/10.2202/1542-6580.1311

A graphite fluid-wall aerosol flow reactor heated with concentrated sunlight has been developed over the past five years for the solar-thermal decarbonization of methane. The fluid-wall is provided by an inert or compatible gas that prevents contact of reactants and products of reaction with a graphite reaction tube. The reactor provides for a low thermal mass that is compatible with intermittent sunlight and the graphite construction allows rapid heating/cooling rates and ultra-high temperatures. The decarbonization of methane has been demonstrated at over 90% for residence times on the order of 10 milliseconds at a reactor wall temperature near 2000 K. The carbon black resulting from the dissociation of methane is nanosized, amorphous, and ash-free and can be used for industrial rubber production. The hydrogen can be supplied to a pipeline and used for chemical processing or to supply fuel cell vehicles.

Keywords: solar; reactor; methane; decarbonize; transport; aerosol

About the article

Published Online: 2007-10-02

Citation Information: International Journal of Chemical Reactor Engineering, ISSN (Online) 1542-6580, DOI: https://doi.org/10.2202/1542-6580.1311. Export Citation

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