초록 ▼

An apparatus for treating organic waste material characterized by high ash content is disclosed. The apparatus includes a slagging combustor for burning the organic waste material to produce a slag of molten inorganic ash and exhaust gases, a cooler for receiving the exhaust gases from the combustor

An apparatus for treating organic waste material characterized by high ash content is disclosed. The apparatus includes a slagging combustor for burning the organic waste material to produce a slag of molten inorganic ash and exhaust gases, a cooler for receiving the exhaust gases from the combustor and cooling the exhaust gases, a condenser for receiving cooled exhaust gases from the cooler and drying the cooled exhaust gases, an exhaust gas recirculation conduit for receiving a first portion of cooled and dried exhaust gases from the condenser, and a source of concentrated oxygen gas in fluid communication with the exhaust gas recirculation conduit for adding concentrated oxygen gas to the first portion of cooled and dried exhaust gases to create a gas mixture that is added to the combustor through the exhaust gas recirculation conduit, wherein the source of concentrated oxygen gas includes a valve responsive to an oxygen sensor in the exhaust gas recirculation conduit for regulating the flow of concentrated oxygen gas into the exhaust gas recirculation conduit.

대표청구항 ▼

[ I claim:] [1.]1. An apparatus for treating organic waste material characterized by high ash content and a heat value of about 500 to about 9,000 Btus per pound, the apparatus comprising:a slagging combustor for burning the organic waste material to produce a slag of molten inorganic ash and exhaus

[ I claim:] [1.]1. An apparatus for treating organic waste material characterized by high ash content and a heat value of about 500 to about 9,000 Btus per pound, the apparatus comprising:a slagging combustor for burning the organic waste material to produce a slag of molten inorganic ash and exhaust gases;a cooler in fluid communication with the combustor, the cooler receiving the exhaust gases from the combustor and cooling the exhaust gases;a condenser in fluid communication with the cooler, the condenser receiving cooled exhaust gases from the cooler and drying the cooled exhaust gases;a condenser gas output conduit in fluid communication with the condenser;an exhaust gas recirculation conduit in fluid communication with the condenser gas output conduit and the combustor, the exhaust gas recirculation conduit receiving a first portion of cooled and dried exhaust gases from the condenser gas output conduit;an oxygen sensor mounted in the exhaust gas recirculation conduit; anda source of concentrated oxygen gas in fluid communication with the exhaust gas recirculation conduit for adding concentrated oxygen gas to the first portion of cooled and dried exhaust gases to create a gas mixture, the gas mixture being added to the combustor through the exhaust gas recirculation conduit, the source of concentrated oxygen gas including a valve responsive to the oxygen sensor, the valve being suitable for regulating a flow of concentrated oxygen gas in response to the oxygen sensor such that the gas mixture has an oxygen concentration of at least 30% by volume.