KQ-2缓蚀阻焦剂在重质酮苯装置水溶液系统的应用
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摘要
重质酮苯脱蜡装置的水溶液系统受酸性物质腐蚀严重,对装置的长周期平稳运行的带来不利的影响。通过加注KQ-2缓蚀阻焦剂来控制水溶液的p H值,降低铁离子浓度。实施后脱水塔排水的p H值由弱酸性转为弱碱性,铁离子浓度大幅下降,减轻了管线、设备酸性腐蚀,水溶液系统的腐蚀得到有效控制。
The serious corrosion occurred by acid in aqueous solution section of heavy MEK Dewaxing unit,which brought adverse effect to steady operation in the unit for a long period of time. KQ- 2 corrosion inhibitor was used to control the aqueous solution's p H value,and reduce concentration of ferric ion. After implementation,the p H value was raised to weak alkaline from weak acid and concentration of ferric ion was decreased,and aqueous solution corrosion was effectively controlled.
The serious corrosion occurred by acid in aqueous solution section of heavy MEK Dewaxing unit,which brought adverse effect to steady operation in the unit for a long period of time. KQ- 2 corrosion inhibitor was used to control the aqueous solution's p H value,and reduce concentration of ferric ion. After implementation,the p H value was raised to weak alkaline from weak acid and concentration of ferric ion was decreased,and aqueous solution corrosion was effectively controlled.
引文
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[5]王金贵.糠醛精制装置的腐蚀与防护[J].腐蚀与防护,2003(1):54-55.