In the process of coal gasification,elements such as carbon,sulfur,nitrogen and chlorine in the raw coal will undergo complex reactions to form different kinds of corrosive products,which will show strong corrosiveness under certain conditions,which seriously affects the safe and stable operation of coal gasification and downstream unit.In this paper,taking the scrubber process of coal gasification unit as the research object,the corrosion resistance of different metal materials in the crude synthesis gas and black water environment of scrubber process was obtained by carrying out on-site corrosion monitoring and laboratory corrosion evaluation.The corrosion control strategy for equipment and pipeline has been developed based on the actual operation of coal gasification unit and engineering practice experience.
关键词
煤气化/洗涤/腐蚀/耐蚀性能/腐蚀控制
Key words
coal gasification/scrubber/corrosion/corrosion resistance/corrosion control
维普
万方数据