针对液化气产品铜片腐蚀不合格以及油渍试验不通过、残留物超标的现象,从腐蚀物的过程来源、种类着手,通过工艺过程分析与机理分析的方法,阐述了生产中存在的问题,指出工序中未脱净的H2S、甲硫醇转化成元素S是造成铜片腐蚀的主要原因,阐明了如何保证液化气产品合格。%The phenomenon of the corrosion of copper and oil-stains no passing,residues exceeding for the liquefied petroleum gas（LPG）,according to the sources and types of corrosive materials,rely on the process analysis and reaction mechanism analysis,illustrate how to ensure the product quality.
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