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Product introduction
 

一、 适用范围

  1.催化裂化装置分馏系统

二、产品简介

腊油、渣油在催化裂化过程中,SClN的腐蚀是很强的,分馏塔塔顶塔盘和塔顶管线、冷却器、空冷等设备腐蚀相当严重。根据分馏塔顶的腐蚀特性,本公司研制了针对性的缓蚀剂。缓蚀剂的极性基团附着在金属表面,改变金属表面的电荷状态,增大了腐蚀反应的活化能,使腐蚀难以进行;另一方面非极性基团多数排列在金属表面,形成疏水膜,阻止了与腐蚀反应有关的大部分电荷或腐蚀介质移动,达到抑制腐蚀的目的,达到缓蚀的目的,缓蚀率大于98%。对分馏塔顶部塔板、馏出线、冷凝冷却器等设备管线有优良的缓蚀性能。

此缓蚀剂分为水溶性和油溶性两种。

三、质量技术指标

1.水溶性缓蚀剂

项 目

指 标

外观

棕黄色液体

缓蚀率

≥98%

密度 20℃

0.95-1.02g/cm3

运动粘度40℃

30mm2/s

闪点

≥80℃

凝点

10℃

溶解性

任意比例溶于水

2.油溶性缓蚀剂

项 目

指 标

外观

红褐色液体

缓蚀率

≥99%

密度 20℃

0.95-1.01g/cm3

运动粘度40℃

40mm2/s

闪点

≥60℃

凝点

15℃

溶解性

溶于煤油、柴油等脂肪烃

四、用途及使用方法

1.塔顶循环或者塔顶馏出线注入。

2.缓蚀剂 15-20均匀稀释后(水溶性用脱盐水,油溶性用柴、煤油),用计量泵连续注入塔顶冷凝系统。按系统处理量的20--35ppm注入,前期注入量为正常期的二倍,三天后每天依次按5ppm的速度递减至正常使用量。

3.本剂冬天使用时可适当用蒸汽加热。

五、包装与储运

产品分25kg桶和200kg桶两种包装。宜放阴凉通风处,不可靠近明火。文明装卸,不可撞击。

六、安全注意事项 

  使用本品者应戴乳胶手套及防护眼镜。如遇本物触及皮肤时可用大量水冲洗后再用肥皂洗净即可;如遇本物品溅入眼睛请在现场立即用水充分清洗之后再请医生检查处理;如遇火灾,可用1211、干粉、泡沫、CO2 等灭火器以及黄砂灭火。油溶性缓蚀剂不可用水灭火。

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