| 合成氨装置中主甲醇换热器的腐蚀与防护 |
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| 引用本文： | 闫慧茹,程革平. 合成氨装置中主甲醇换热器的腐蚀与防护[J]. 石油化工腐蚀与防护, 2005, 22(4): 11-15 |
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| 作者姓名： | 闫慧茹 程革平 |
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| 作者单位： | 内蒙古天野化工有限责任公司,内蒙古,呼和浩特,010070 |
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| 摘 要： | 介绍了合成氨装置中主甲醇换热器EA-206的工艺和设备情况,并对其腐蚀机理进行了分析。对4种材料(08Cr2AlMo,16MnR,0Cr18Ni9Ti,20钢)做腐蚀测试可知:20钢做为管束材质已不适于当前工艺条件,应选用0Cr18Ni9Ti或08Cr2AlMo。同时介绍了金属材料的化学成分和力学性能与耐腐蚀性能的关系,并从设备和工艺方面提出了改进措施。
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| 关 键 词： | 低温甲醇 腐蚀机理 防蚀措施 |
| 文章编号： | 1007-015X(2005)04-0011-05 |
| 修稿时间： | 2004-08-24 |
Corrosion of Main Methanol Heat Exchanger in Fertilizer Plant and Protection |
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| Yu Huiru,Cheng Geping. Corrosion of Main Methanol Heat Exchanger in Fertilizer Plant and Protection[J]. Petrochemical Corrosion and Protection, 2005, 22(4): 11-15 |
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| Authors: | Yu Huiru Cheng Geping |
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| Affiliation: | Huhhot 010070 |
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| Abstract: | The main process and equipment of methanol heat exchanger EA - 206 in ammonia unit are introduced, and corrosion mechanisms is studied.The corrosion tests of four materials (08Cr2AlMo,16AnR,0Cr18Ni9Ti, 20 # steel) concludes that 20 # steel is not a proper material for present process conditions.08Cr2AlMo and 0Cr18Ni9Ti should be selected.Therelationship between chemical composition and mechanic performance of relative materials and their corrosion resistance preformance are discussed and improvement measures are proposed in respect of equipment and process. |
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| Keywords: | lwo-temperature methanol corrosion mechanisms corrosion protection measures |
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