| 摘要 |
The invention relates to a method of controlling combustion of a first solid fuel having a first lower heat value and a second solid fuel having a second lower heat value, which differs from the first lower heat value, in an oxycombustion boiler having a furnace, said method comprising the following steps when combusting either of the fuels: (a) feeding the first fuel into the furnace; (b) feeding a stream of substantially pure oxygen into the furnace for combusting the first fuel; (c) removing flue gas generated in the combustion of the first fuel from the furnace in such a manner that prior to the step (a) the value of a variable commensurate with the lower heat value of the first fuel and the second fuel, respectively, and adjusting the recirculating portion of the flue gas to be lower when combusting the fuel having a lower value of the variable commensurate with the lower heat value of the fuel than the recirculating portion of the flue gas when combusting the fuel having a higher value of the variable commensurate with the lower heat value of the fuel. |
