METHOD OF COOLING CRUDE GAS OBTAINED IN GASIFICATION PROCESS

摘要

FIELD: gas treatment. SUBSTANCE: crude gas is freed of fine to dustlike fuel at temperatures above slag melting point when cooling by admixing partial stream of produced gas. From convection section located after gas generator of heat-recovery boiler, partial stream of non-dedusted gas with temperature between 200 and 800 C is withdrawn. This stream is returned into cooling zone as cooling gas by means of injector actuated by gas medium. EFFECT: increased cooling efficiency. 8 cl, 1 dwgt