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为了减轻常减压蒸馏塔塔顶的腐蚀，国内炼油厂普遍采用了注氨、注水的措施，但塔顶的初凝区仍存在较严重的腐蚀。在分析常减蒸馏塔顶刻凝区NH3－HCI-H2S-H2O气液相平衡关系的基础上，阐明了注氨状态下，酸性腐蚀区形成的原理，为使用BZH－1中和缓蚀剂提供了缓蚀的理论依据。并经北京燕山石油化工公司炼油厂现场应用，结果证明该剂的援蚀效果良好。
In order to reduce the atmospheric and vacuum distillation tower top corrosion, domestic refineries commonly used injection ammonia, water injection measures, but the top of the initial setting area still exists more serious corrosion. Based on the analysis of the gas-liquid equilibrium of NH3-HCI-H2S-H2O in the top of the distillation column, the principle of formation of acid corrosion zone under ammonia injection was clarified, which is provided by the use of BZH-1 neutralization inhibitor The theoretical basis of corrosion inhibition. And by the Beijing Yanshan Petrochemical Company refinery site application, the results show that the agent of the corrosion effect is good.