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["Sobre la cristalización en laxililadoras和分馏塔结盐",,"El clor和铵主要是氯化铵NH4Cl,分解温度在350℃左右,热水易溶解。塔顶油气分压越来越大,所以不易结盐,比较容易结盐的地方是顶循环回流抽出板的集油箱附近。结盐的现象是塔压降增大(35Kpa到45Kpa),顶循环回流量K,泵易抽空,多次出现轻柴不能镏出,s柴镏出板上下分离效果差,容易冲塔,汽油干点高,柴油闪点低。分馏塔顶温低于K容易结盐。防止结盐的手段可以是提高分馏塔顶压力,加注铵盐分散剂等等常见手段。问题来了:降低一中循环取热量,把热量留给顶循环回流,提高塔顶温度,适当打冷回流,增大塔顶的气液相负荷。这个方案是否可行?大家对于在线洗塔有什么经历经验么,望不吝赐教。","Espero que los grandes maestros puedan responder a esto。","Sobre el problema de la crist化在催化分馏塔,参见帖子https://bbs.hcb和bbs.com/thread-84711-1- -html,里面有详细的介绍。","Ahora parece que la现象在分馏塔结盐的现象已经不明显了。当初都是原料惹的祸。。。。"]

2017-11-02View Original

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结盐主要是氯化铵NH4Cl,分解温度在350℃左右,热水易溶解。塔顶油气分压越来越大,所以不易结盐,比较容易结盐的地方是顶循环回流抽出板的集油箱附近。结盐的现象是塔压降增大(35Kpa到45Kpa)顶循环回流量小,泵易抽空,多次出现轻柴不能镏出,轻柴镏出板上下分离效果差,容易冲塔,汽油干点高,柴油闪点低。分馏塔顶温低于110℃就有结盐倾向,防止结盐的手段可以是提高分馏塔顶压力,加注铵盐分散剂等等常见手段。问题来了:降低一中循环取热量,把热量留给顶循环回流,提高塔顶温度,适当打冷回流,增大塔顶的气液相负荷。这个方案是否可行?大家对于在线洗塔有什么经历经验么,望不吝赐教。
Reply #22017-11-03
希望各位大神能回答一下。
Reply #32017-11-04
关于催化分馏塔结盐问题的论文集 https://bbs.hcbbs.com/thread-84712-1-1.html 看一下这个帖子里面有详尽的介绍
Reply #42017-11-05
现在好像分馏塔结盐的现象不大有了吧?当初都是原料惹的祸。。。。。

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