| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oxy-combustion boiler that can increase plant efficiency by decreasing heat loss while suppressing progression of decay by removing a sulfur oxide from an exhaust circulating into the boiler and preventing droplets from adhering to an inner wall of a pipe of a circulating gas. <P>SOLUTION: The oxy-combustion boiler sequentially arranges: a heat collector that recovers heat from the exhaust gas; a dust collector that removes soot dust of the exhaust gas; a sulfur oxide remover that removes the sulfur oxide of the exhaust gas; and a cooling dehumidifier that removes moisture of the exhaust gas, in a region between a branching point that makes part of the exhaust gas branch off from the exhaust gas system to circulate the part of the exhaust gas into an outlet for the exhaust gas of the boiler, and the boiler regarding an exhaust gas system that makes the exhaust gas discharged from the boiler flow down, where an exhaust gas circulation system that circulates the part of the exhaust gas branching off from the branching point of the exhaust gas system to the boiler is arranged, and a reheater that heats the exhaust gas is provided in the exhaust gas circulation system. <P>COPYRIGHT: (C)2012,JPO&INPIT |
