GB179643A - Apparatus for the complete gasification of carbonaceous fuel - Google Patents

Abstract

179,643. Simpson, J. F. Feb. 8, 1921. Producers.-Apparatus for the complete gasification of carbonaceous fuel comprises a water-gas producer 1 preferably surmounted by a retort 2 and hopper 15, and having two regenerators 4, 6 so arranged that an up or down blow through the producer may be obtained. The air main 12<b> is divided and its two branches, controlled by valves 12, 12<a>, lead into blast pipes 10, 10<a> provided with stack valves 11, 11<a> and communicating with the regenerators 4, 6. The producer is in connection at its bottom and top ends with regenerators 4, 6 by pipes 3, 5 respectively. When valves 11, 12a are closed the air blast passes down through regenerator 4 up through the producer which is heated thereby and the resulting gases together with secondary air introduced through a pipe 9 pass up regenerator 6 which is thereby heated, the combustion products escaping by the stack valve 11<a>. The direction of the blow is then reversed by valve manipulation and when the fuel bed is heated sufficiently, steam Introduced by an inlet 7 ,is heated in the regenerator 4 and enters the producer at the bottom, the resultant water gas passing up through the retort, partly distilling the raw fuel and passing through a take-off pipe 17 to a wash-box 18 and leaving by an outlet 20. Liquid fuel may be admitted to the retort by a pipe 21. During the blow a portion of the gases may be passed up through the retort.