TWO-STAGE BIOMASS PYROLYSIS
    2.
    发明申请

    公开(公告)号:US20170240814A1

    公开(公告)日:2017-08-24

    申请号:US15435990

    申请日:2017-02-17

    CPC classification number: C10B53/02 C10B49/16 C10B57/06 Y02E50/14 Y02P20/145

    Abstract: The present disclosure relates generally to a two-stage biomass pyrolysis processes that maximize pyrolysis vapor yield from a lignocellulosic biomass while being conducive to commercial-scale throughput of biomass. A lignocellulosic feedstock is first pyrolyzed in a reactor first stage comprising at least one auger at a temperature and residence time that produces pyrolysis vapors derived predominantly from cellulose and hemi-cellulose fractions of the feedstock. Partially-pyrolyzed feedstock from the reactor first stage is then pyrolyzed in a reactor second stage at a higher temperature for an additional residence time to produce additional pyrolysis vapors that are predominantly derived from lignin. Certain embodiments arrange multiple reactor first stages around a single reactor second stage.

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