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["El objetivo del el proceso de cuatro torres es la separación de C4.", "[Investig, y aver, algunos ref tienen unidades de alilación化,因此设置C4分离塔来去除MTBE后的醚后C4,这样可以省略一个C4分离塔的能量消耗,代价是未分离的C4直接进入烷基化过程,异丁烷组分含量太低,导致烷基化过程中的分离能耗过高,这也是设置C4分离塔的主要目的吧,也就是先设置C4分离,这样下游的异丁烷浓度高,分离能耗低,总体能耗仍然较低。理解对否?谢谢!". "Nuestro equipo no tiene una unidad de alil化,因此我们的装置没有MTBE产出,醚后C4作为民用液化气销售。这反而证明了你的的猜想" "Este tanque también es equivalente a una destilil但丁烯塔,1

2018-10-08View Original

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查资料,有的炼厂有烷基化的装置,需要设置C4分离塔,那么问题来了,气分三塔流程去MTBE后的醚后碳四,直接去烷基化,不也省略了一个C4分离塔的能耗么,代价是未分离C4去烷基化,异丁烷组分含量太低,导致烷基化过程分离能耗太高,这个也是气分四塔流程设置C4分馏塔主要目的吧,也就是先设置C4分离,这样下游异丁烷浓度高,分离能耗低,总体能耗仍然偏低。理解对否?谢谢!
Reply #22018-10-09
我们装置没有烷基化装置,气分就三塔流程(脱丙烷-脱乙烷-丙烯塔)+MTBE,产出醚后C4当民用液化气销售了。反面论证了你的猜想
Reply #32018-11-03
这个塔四其实也相当于一个脱丁二烯的塔了,13丁二烯对烷基化的影响还是很大的

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