| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the circulation amount of carbon oxide gas, and to reduce running costs. <P>SOLUTION: An oxygen combustion boiler system includes a boiler 2 with a plurality of oxygen combustion burners 31, a pulverized coal mill 29, a carbon dioxide gas recovery device 4 for recovering the carbon dioxide gas from an exhaust gas, and an oxygen production device 1 for manufacturing oxygen from air, a gas line 28 for circulating the carbon dioxide gas discharged from the boiler to the oxygen combustion burners, through the pulverized coal mill, and a combustion gas supply line 34 for supplying oxygen gas manufactured by the oxygen production device as the combustion gas to the oxygen combustion burners, and the pulverized coal ground by the pulverized coal mill is conveyed to the oxygen combustion burners by the carbon dioxide gas, to be burnt using the combustion gas supplied by the combustion gas supply line as an oxidant. <P>COPYRIGHT: (C)2011,JPO&INPIT |
