["1. 如何消除烷基化循环碱水管壳式换热器结盐以及如何预防？

2020-07-20View Original

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烷基化碱洗罐循环碱换热器结盐，目前碱浓度控3-8，碱洗温度49度。

Reply #22020-07-22

是结垢还是结盐？操作条件都比较正常啊，你的的换热介质（一般是烷基化油）入口多少度？

Reply #32020-07-22

结盐，壳程入口温度在约 to1 度，管程走的是低压蒸汽

Reply #42020-07-23

我们装置也有轻微结垢，可能跟碱液中金属离子有关系

Reply #52020-07-23

请问一下，贵公司是怎么样解决这个问题的呢？我们现在计划把碱浓度降低至3%--4%，低于3%浓度就排低一点液位，再补碱。贵公司的碱浓度控多少？

Reply #62020-07-24

碱液浓度4-6%，其实补碱都是3%的碱液，我公司没有做处理，因为结垢不严重，仅仅是薄薄的一层，换热器内基本无结垢现象。我们的热源用的是外采出装置的异辛烷，量比较大，温度可能比你的蒸汽温度低"

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["1. 如何消除烷基化循环碱水管壳式换热器结盐以及如何预防？

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