METHOD OF THERMAL DECOMPOSITION FOR REDUCING AGGLOMERATE FORMATION Russian patent published in 2018 - IPC C10J3/00 C10J3/72 

FIELD: technological processes.

SUBSTANCE: invention relates to a method for reducing agglomerate formation during thermal decomposition of a carbonaceous material feedstock. Non-catalytic thermal decomposition method is described, comprising: feeding a generally solid feedstock to a thermal decomposition unit; moving the feedstock through at least one gasification zone in the thermal decomposition unit by means of a moving device and supplying oxygen and optionally an additional gas to the gasification zone, wherein oxygen and optionally the additional gas is supplied to the moving device and exits on the surface of the moving device; feedstock is moved through the gasification zone and the oxygen is fed to the gasification zone at rates effective to maintain a material bed temperature not exceeding 2,300 °F at any point in the material bed, and to maintain the temperature of the material bed from 500 to 2,000 °F. Non-catalytic thermal decomposition method is also described, comprising: feeding the generally solid feedstock to the thermal decomposition unit; moving the feedstock through at least one gasification zone in the thermal decomposition unit by means of at least one moving pusher, the moving pusher is moved at a rate effective to provide a retention time of the feedstock in the gasification zone from 0.25 to 3 hours; and supplying oxygen and optionally the additional gas to the moving pusher and providing oxygen and optionally the additional gas yield to the working surface of the moving pusher at a rate of 0.5 to 1.5 lb-mol/h⋅ft², wherein when the additional gas is supplied, oxygen and the additional gas, supplied to the moving pusher, are in a weight ratio of from 3:1 to 1:2.

EFFECT: method is proposed that provides an improved operation of the gasifier by reducing agglomerate formation during the thermal decomposition of carbonaceous material feedstock.

28 cl, 8 dwg