| 摘要 |
A method of cleaning a surface within a gas engine 10, for example part of a pre-combustion part 11, comprising passing ozone through an inlet and over the surface, reacting the ozone with any organic contaminants on the surface and removing the reacted contaminants and any residual ozone from an outlet as a gaseous exhaust. At least a portion of the exhaust may be recirculated. The composition of the exhaust, including the concentrations of ozone, organic molecules and oxygen, may be monitored. Also claimed is an apparatus for carrying out said method comprising a variable displacement fan 32 and/or a valve 34 which are controlled, according to the exhaust composition, in order to adjust the proportion of exhaust to be recirculated and the flow of ozone from an ozone generator 3. The method and apparatus is for cleaning engines running on syngas without damaging sensitive equipment or requiring a plant shutdown. |
