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自主研发了MPTR和MPTT型原油脱金属剂,并进行原油脱金属性能评价.结果表明:MPTR型原油脱金属剂对金属元素的总脱除率可达到56.6％,脱钙率为60.5％,对金属元素钠和镁的脱除率均高于90％;而MPTT型原油脱金属剂对金属元素的总脱除率高达76.5％,脱钙率为95.0％,金属元素钠和镁的脱除率均大于95％,金属元素铁的脱除率为57.7％,具有较MPTR型原油脱金属剂更好的原油脱金属效果.MPTR和MPTT型原油脱金属剂溶液对脱金属剂储罐及电脱盐装置的模拟腐蚀实验结果表明:在不同温度条件下,不同浓度的原油脱金属剂溶液对20号碳钢的腐蚀速率均较低;利用扫描电子显微镜观察不同实验条件下腐蚀试片表面的腐蚀情况可知,MPTR和MPTT型原油脱金属剂溶液对20号碳钢的腐蚀均为均匀腐蚀,腐蚀凹坑遍布整个碳钢表面.“,”Based on the analysis of basic physical properties of crude oil processed by Zhongjie Petrochemical Co.,Ltd.,the performances of two self-developed demetallization agents (MPTR and MPTT) for crude oil are evaluated by means of SH-Ⅱ electrical desalting instrument.The evaluation results demonstrate that,for MPTR type of demetallization agent,the total removal rate of metallic elements and Ca from crude oil can reach 56.6％ and 60.5％,respectively.The removal rate of Na and Mg are both higher than 90％.In contrast,MPTT type demetallization agent has better removal effect of metallic elements.The total removal rate of metallic elements from crude oil by MPTT type demetallization agent is as high as 76.5％.The removal rates of Ca and Fe are 95.0％ and 57.7％,respectively,and the removal rate of Na and Mg are both greater than 95％.The simulated corrosion experiments of the solution of MPTR and MPTT type of demetallization agent are performed on demetallization agent tank and electrical desalting device.The results show that the solutions of MPTR and MPTT type of demetallization agents both have lower corrosion rate on 20# carbon steel under different temperature and concentrations.In addition,SEM results indicate that the corrosion on 20# carbon steel by MPTR and MPTT solutions is uniform and the corrosion pits are distributed over the whole surface of the carbon steel.