초록 ▼

Non-hazardous organic waste material is introduced into a slagging combustor where it is burned. The burning produces exhaust gases and a slag of molten, inorganic ash which is removed from the combustor. The exhaust gases are treated to cool and dry the gases and to remove a major portion of partic

Non-hazardous organic waste material is introduced into a slagging combustor where it is burned. The burning produces exhaust gases and a slag of molten, inorganic ash which is removed from the combustor. The exhaust gases are treated to cool and dry the gases and to remove a major portion of particulate matter contained therein. A portion of the treated exhaust gases is mixed with a source of concentrated oxygen in a proportion that results in mixed gases having an oxygen concentration of at least 30% by volume. The mixed gases are introduced into the combustor to support the burning of the waste material. Another portion of the treated exhaust gases is further treated to recover the carbon dioxide therefrom.

대표청구항 ▼

[ I claim:] [1.] A method of treating organic waste material characterized by high ash content and a heat value of about 500 to about 9,000 Btus per pound, comprising:introducing the waste material into a slagging combustor;burning the waste material in the combustor to produce a slag of molten inor

[ I claim:] [1.] A method of treating organic waste material characterized by high ash content and a heat value of about 500 to about 9,000 Btus per pound, comprising:introducing the waste material into a slagging combustor;burning the waste material in the combustor to produce a slag of molten inorganic ash and exhaust gases;removing the slag from the combustor;removing the exhaust gases from the combustor;thereafter treating the exhaust gases to remove a substantial portion of particulate matter from the exhaust gases and to dry the exhaust gases;dividing the treated exhaust gases into more than one portion; andintroducing a first portion of the treated exhaust gases and concentrated oxygen gas into the combustor in a proportion that results in the introduced gases having a combined oxygen concentration of at least 30% by volume.