Improvements in the Vortex Reactor Design

    Research output: Chapter in Book/Report/Conference proceedingChapter


    Over the years, a variety of improvements have been incorporated into the vortex reactor that considerably increase its efficiency, durability, and operability. These improvements have included an internal rib to guide feed particles into a tight helix, an easily replaceable wear plate located at the vortex entry, a recycle loop that ensures complete pyrolysis of large feed particles,reorientation of the reactor from horizontal to vertical, better conservation of kinetic energy in the recycle loop with a new eductor design, and the ality to periodically remove inert particles from the reactor. A mathematical model that describes the vortex reactor was used to guide the design of a reactor with a nominal capacity of 32 dry tonnes of biomass/day. This reactor was fabricatedwith the internal spiral rib using large, but conventional , machining equipment. Other techniques of fabrication exist, but have not been proven. The National Renewable Energy Laboratory is interested in scaling up this technology in cooperation with industry.
    Original languageAmerican English
    Title of host publicationDevelopments in Thermochemical Biomass Conversion
    EditorsA. V. Bridgwater, D. G. B. Boocock
    PagesVol. I: 242-252
    StatePublished - 1997

    NREL Publication Number

    • NREL/CH-431-20963


    Dive into the research topics of 'Improvements in the Vortex Reactor Design'. Together they form a unique fingerprint.

    Cite this