| 摘要 |
The invention refers to a method of cleaning a carbon dioxide rich flue gas generated in a boiler (2) combusting a fuel in the presence of a gas containing oxygen gas. The method comprises A) forwarding the carbon dioxide rich flue gas from the boiler (2) to a gas cleaning system (6; 106; 206), B) removing in said gas cleaning system (6; 106; 206) at least a portion of the contaminant content of the carbon dioxide rich flue gas, C) forwarding a first portion of the carbon dioxide rich flue gas from which at least a portion of the contaminant content has been removed to a gas purification unit, D) pressurizing a second portion of the carbon dioxide rich flue gas from which at least a portion of the contaminant content has been removed upstream of the gas purification unit, E) forwarding the second portion of the carbon dioxide rich flue gas to at least one gas cleaning device (8; 108; 110; 111; 210; 211) for being utilized as a utility gas therein. |
