Failure analysis of Texaco coal water slurry gasification feed injector outer tip cap
Feed injector is the key equipment of Texaco coal water slurry gasification process,and its operation status directly determines the operation cycle,safety and stability of a gasifier.Based on macroscopic inspection,microscopic metallographic analysis,hardness detection and energy spectrum analysis,the failure mechanism of a feed injector outer tip cap is analyzed,which caused by Cl and S corrosion.The service life of the feed injector is prolonged by studying the material composition elements and optimizing the design of jacket cooling structure.
coal-water slurryTexaco gasifierfeed injectorouter tip capCl corrosionS corrosion