加氢装置塔顶缓蚀剂的评价
Corrosion & Protection in Petrochemical Industry（2015）
Abstract
针对某炼化企业加氢装置多处发生腐蚀问题,为了确保塔顶缓蚀剂的注入效果,对几种日常注入的6种缓蚀剂进行评价筛选.通过实验室模拟腐蚀环境,采用电化学极化曲线法测定不同种类的缓蚀剂在腐蚀介质溶液中的腐蚀电流密度,通过塔菲尔斜率推算出缓蚀率,从而评价缓蚀剂注入效果.缓蚀剂的缓蚀率排序:多硫化钠复合剂(81.62％)＞2号缓蚀剂(81.57％)＞1号缓蚀剂(53.02％)＞1:1缓蚀剂(21.92％)＞D3201缓蚀剂(13.73％)＞1:6.5缓蚀剂(-83.28％).
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