| abstract |
A boiler system (101) comprises a boiler (2) for combusting a fuel in the presence of a gas containing oxygen gas, and a gas cleaning system (106). The boiler system (101) comprises a compression device being operative for pressurizing at least a portion of the carbon dioxide rich flue gas from which at least a portion of the contaminant content has been removed, and a carbon dioxide supply duct (142; 143; 145) being operative for forwarding at least a portion of the pressurized carbon dioxide rich flue gas to at least one gas cleaning device (108; 110; 111) for being utilized as a utility gas therein. |