GAS DISTRIBUTOR FOR FLUIDIZED BED COAL GASIFIER

摘要

U.S. 14,698 A gas distributor for distributing high temperature reaction gases to a fluidized bed of coal particles in a coal gasification process. The distributor (20) includes a pipe (22) with a refractory reinforced lining (24) and a plurality of openings (26) in the lining through which gas is fed into the bed. These feed opening have an expanding tapered shape (28) in the downstream or exhaust direction which aids in reducing the velocity of the gas jets as they enter the bed.