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南京炼油厂和沿江安庆、九江、武汉炼油厂加工的鲁宁管输原油为含硫含酸原油,最大酸值为1.07～1.7mgKOH/g,因而对于设备的腐蚀破坏是严重的.1989年开始管输原油供量不足,沿江各厂只能加工管输原油和其它品种的混合原油.在我厂其油种包含国内苏北、大庆、黄岛和国外阿曼、米纳斯、沙特等多种原油,1991年我厂加工12种.品种多加工过程油种变化频繁,掺炼比难控制,为了弄清混合原油对设备的腐蚀,在1993年间对加工混合原油的腐蚀进行了6次现场腐蚀速度试验和相应的混炼原油及馏分油中腐蚀介质分析,并同时用塔顶腐蚀模拟装置测定塔顶馏出物不同温度下的腐蚀速度.
Nanjing Refinery and along the Anqing River, Jiujiang, Wuhan refinery Lu Ning Pipeline crude oil is sulfur acid-containing crude oil, the maximum acid value of 1.07 ~ 1.7mgKOH / g, and thus for the corrosion of equipment is serious. Pipeline crude oil supply shortage, the plant along the Yangtze River can only process crude oil and other varieties of mixed crude oil. In our plant its oil content includes the domestic North Jiangsu, Daqing, Huangdao and foreign Oman, Minas, Saudi Arabia and other Crude oil, I plant 12 kinds of processing in 1991. Variety of varieties of oil processing process changes frequently mixed control difficult to control, in order to clarify the mixed crude oil on the corrosion of equipment, processing of mixed crude oil in 1993 for 6 times on-site corrosion Speed test and the corresponding analysis of the corrosive medium in the crude oil and distillate, and simultaneously the top corrosion simulator was used to measure the corrosion rate of the overhead distillate at different temperatures.