摘要
试验室试验和工业应用证实了渗铝钢良好的耐硫化合物(SO_2、SO_3、H_2S等)腐蚀性能。一套120kt/a的硫酸装置采用渗铝钢制作冷换热器,预计寿命可达15～20年,而用普通＃20钢制作,只能用5～8年。在炼油厂的含H_2S介质中,渗铝钢挂片的平均腐蚀速率为0.015～0.032mm/a,而A_3钢为0.325～0.619mm/a。
Both laboratory experiments and industrial applications of aluminized steel demonstrated its good corrosion resistance to sulphur compounds ( e. g., SO2, SO2 and H2S). The life expectancy of a cold gas heat exchanger in a 120kt/a sulphuric acid plant can be prolonged from 5~8 years in the case of 20g steel to 15~20 years with aluminized 20g steel. In H2S-containing environment of refineries, the mean corrosion rates of aluminized A3 steel specimens were 0.015~ 0.032mm/a vs. 0.325~0.619mm/a for As steel.
出处
《硫酸工业》
CAS
1990年第4期41-43,64,共3页
Sulphuric Acid Industry
