초록 ▼

A glassmelting method employing reducing and oxidizing conditions generated by defined combustion arrangements enabling the processing of glassmaking materials while reducing NOx emissions which would otherwise result from, for example, niter decomposition. The NOx is reduced to nitrogen under the r

A glassmelting method employing reducing and oxidizing conditions generated by defined combustion arrangements enabling the processing of glassmaking materials while reducing NOx emissions which would otherwise result from, for example, niter decomposition. The NOx is reduced to nitrogen under the reducing conditions and kept from reforming in the oxidizing zone.

대표청구항 ▼

A method for processing glassmaking materials in a glassmelting furnace having a charge zone and a discharge zone with reduced emissions of nitrogen oxides comprising: (A) introducing glassmaking materials including nitrate into said charge zone and decomposing nitrate therein to form nitrogen oxide

A method for processing glassmaking materials in a glassmelting furnace having a charge zone and a discharge zone with reduced emissions of nitrogen oxides comprising: (A) introducing glassmaking materials including nitrate into said charge zone and decomposing nitrate therein to form nitrogen oxides; (B) introducing fuel and oxygen in a fuel-rich ratio into said charge zone, combusting them therein to form combustion reaction products including products of incomplete combustion, and reducing nitrogen oxides in the charge zone to form nitrogen; and (C) passing the glassmaking materials, products of incomplete combustion and nitrogen into the discharge zone, introducing fuel and oxygen in an oxygen-rich ratio into said discharge zone and combusting them therein, reacting the products of incomplete combustion with oxygen to form products of complete combustion, and passing the products of complete combustion out from the glassmelting furnace from the discharge zone.