Patent ID: 8721748
Filing Date: 2014-05-13
Classification: B01J,C10J

Abstract:
1. A gasifier comprising: A plurality of conjoined and vertically positioned tubes having a perimeter, an interior wall, an exterior wall, a proximal end and a distal end, wherein the proximal end provides an inlet and the distal end provides an outlet; at least three contiguous reaction zones comprising a pyrolysis zone angled toward a central convergence, followed by an oxidation zone dilated in the middle, followed by a reduction zone; at least two separate rings of pressurized plano air inlets, configured to deliver adjustable volumes and pressures of oxidant streams, located around the perimeter of the oxidation zone; and a variably rotating and vertically adjustable grate positioned below, but not touching the reduction zone; wherein the gasifier is a partially open core downdraft gasifier used for gasification of feedstock.