| 摘要 |
A method for reducing the emissions from combustion gases 14, 16 from a combustion process comprises injecting a hydro-carbon based reducing agent into the combustion gases and directing the gases through a selective catalyst reduction (SCR) system. Preferably, the reducing agent comprises a saturated or unsaturated hydrocarbon, alcohol or ketone and is mixed with a carrier gas, which may be a portion of the combustion gases, to vaporize the reducing agent. A combustion chamber exhaust system is also provided including a first transport line 54 configured to extract a portion of the combustion gases and a vaporizer chamber 70 configured to form a mixture of vaporised reducing agent and exhaust gas. A second transport line 88 channels the mixture to an agent injection grid (AIG) 40 positioned upstream from an SCR system 28, the SCR comprising a catalytic bed 30 configured to facilitate reducing NOx within the combustion gases. |
