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加氢裂化(二段式的第一段)和加氢精制装置反应生成物空冷器,特别是当进料中的硫和氢的含量高时,经常会发生惊人的腐蚀。这种腐蚀是在油、氢中同时含有硫化氢、氨和水的情况下发生的,反应生成物空冷器入口温度通常为250～400℉(120～200℃)出口温度为100～150℉(37～66℃)。这种腐蚀的原因和如何防护的问题引起了很多人的注意。1968年美国标准石油公司 R·L·Piehl 发表了一篇文章,题为“加氢裂化反应生成物冷却器中含硫冷凝水的腐蚀”,对这类腐蚀
Hydrocracking (first stage of two-stage) and hydrofinishing plant reaction product air coolers, especially when the content of sulfur and hydrogen in the feedstock is high, often results in an astonishing corrosion. This corrosion occurs in the presence of hydrogen sulfide, ammonia, and water in both the oil and the hydrogen. The inlet temperature of the reaction product air cooler is generally 250 to 400 ° F (120 to 200 ° C). The outlet temperature is 100 to 150 ° F 37 to 66 ° C). The cause of this corrosion and how to protect the issue attracted a lot of people’s attention. In 1968, RPL, an American standard oil company, published an article entitled “Corrosion of Sulphurized Condensate in Coolers of Hydrocracking Reactants”. This type of corrosion