从热力学角度讨论了环烷酸和硫化氢组成的腐蚀体系的热力学性质。结果表明：含高硫、高酸值的原油在温度小于３９８．９８Ｋ时，所形成的ＦｅＳ地环烷酸的侵蚀具有一定的保护作用，高于此温度将丧失保护作用，温度、浓度的变化不同程度的影响腐蚀产物的组成，讨论了ＦｅＳ在环烷酸中可能的溶解机理，探讨了选择成型缓蚀剂的原则。
The properties of naphthenic acid hydrogen sulphide cornion have thermodynamically been discussed. The results shaved that fern-sulphide formed on the surface of imn in oil containing high concentration of sulphur and high acidic value has protective ability below 398. 98K, however above the temperature may Im the protective function. Temperture and concentration of the solution have influence on the canposition of comion pducts. The possible dissolving mechani.m of femsulphide in naphthenic acid is proposed ,norr over ,the principle of selecting film-formed inhibi~ors in also discussed.
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