Iji m ụlọ ọrụ raara desulfurizer na desulfurization usoro, eke gas, mmanụ ala nhazi site-ngwaahịa gas, Coke oven gas, gas, gbanwee sọlfọ ọdịnaya gas na gas mwepụ, na n'otu oge ahụ nwere ike tufuo nke gas na cyanide tar, naphthalene, nitrogen oxides na ụfọdụ.
