Gas particulate solid system

摘要

A gas particulate solid system has a chamber capable of containing a bed of particulate solid and a supply of an oxygen containing gas. A line or lines having their outlet or outlets above the slumped bed directs the oxygen containing gas downwardly to impinge on the surface of the bed material so as to form a crater surrounded by circulating bed material. Fuel is supplied to the crater either in the gas stream or from an external source and after ignition combustion occurs in or near the crater.