| 两种钢在高温环烷酸中腐蚀行为的研究 |
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| 引用本文： | 杨瑞,程丽华,于湘,战洪仁,杨鑫莉,余俊良,王智. 两种钢在高温环烷酸中腐蚀行为的研究[J]. 当代化工, 2016, 0(5): 887-889. DOI: 10.3969/j.issn.1671-0460.2016.05.003 |
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| 作者姓名： | 杨瑞 程丽华 于湘 战洪仁 杨鑫莉 余俊良 王智 |
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| 作者单位： | 1. 广东石油化工学院 广东省石化装备故障诊断重点实验室，广东 茂名 525000; 沈阳化工大学，辽宁 沈阳 110142;2. 广东石油化工学院 广东省石化装备故障诊断重点实验室,广东 茂名,525000;3. 沈阳化工大学,辽宁 沈阳,110142 |
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| 基金项目： | 茂名市科技计划(515040)；广东省自然基金粤东西北专项(915006)；广东省教育厅高校学科建设专项项目(2012KJCX0078)。 |
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| 摘 要： | 采用高温高压反应釜,考察温度、酸值和转速对20#碳钢、304不锈钢腐蚀速率的影响。结果表明:在220~300℃随着温度的升高,20#碳钢腐蚀速率先增大后减小,在280℃达到最大值0.654 mm/a,304不锈钢材料腐蚀速率逐渐较小;随着酸值的增大,20#碳钢腐蚀速率不断上升,在酸值为8~10 mg KOH/g时增速最大,304不锈钢呈直线趋势逐渐减小;在转速为0.8~2 m/s的范围内,20#碳钢腐蚀速率由0.654 mm/a变化到0.56 mm/a,304不锈钢由0.039 6 mm/a变化到0.011 2 mm/a,说明在低转速范围内环烷酸腐蚀影响并不太明显。
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| 关 键 词： | 温度 酸值 转速 腐蚀速率 |
Study on Corrosion Behaviors of Two Kinds of Steel in High Temperature Naphthenic Acid |
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| Abstract: | Using high temperature and high pressure reaction kettle, influence of temperature, acid value and rotating speed on 20#carbon steel and SS304 stainless steel corrosion rates was investigated. The results show that: with the increase of temperature, 20# carbon steel corrosion rate first increases and then decreases, the maximum value is 0.654 mm/a at 280℃, and SS304 stainless steel corrosion rate decreases gradually; with the increase of acid value, 20# carbon steel corrosion rate rises,the largest growth appears in the value of 8~10 mgKOH/g, and SS304 stainless steel corrosion rate decreases gradually; when rotation rate is in the range of 0.8~2 m/s , 20# carbon steel corrosion rate changes from 0.654 mm/a to 0.56 mm/a, SS304 stainless steel corrosion rate changes from 0.039 6 mm/a to 0.011 2 mm/a ,which proves that influence of rotation rate in low speed range on the naphthenic acid corrosion is not obvious. |
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| Keywords: | temperature acid value rotation rate corrosion rate |
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