Gasification reactor with discrete reactor vessel and grate and method of gasification

  • US 10,611,973 B2
  • Filed: 06/18/2019
  • Issued: 04/07/2020
  • Est. Priority Date: 01/30/2012
  • Status: Active Grant
First Claim
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1. A gasification reactor comprising:

  • a discrete reactor vessel which is cylindrical in shape having a bottom with an inverted cone section;

    a freeboard section comprising the top half of the reactor vessel, said freeboard section having a diameter of at least 57 inches;

    a fluidized bed in a bed section within said reactor vessel located beneath the freeboard section, said fluidized bed having a diameter of at least 45 inches;

    at least one fuel feed inlet located beneath the freeboard section, said inlet configured to feed a fuel into said reactor vessel at a fuel feed rate during steady-state operation of the gasifier;

    a gas distributor located within the inverted cone section comprising a flue gas and air inlet that feeds flue gas and air to an array of nozzles whereby the flue gas and air are directed into the fluidized bed in the bed section; and

    an ash grate positioned beneath the bottom of the discrete reactor vessel.

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