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["¿Por qué la destilación丙烷塔设置双塔?",,"¿Por qué el proceso de destilaje de pro丙烷要设置高低压两个塔?能否解释一下?","Una torre tan alta es inútil y aislada, no es conveniente. Es mejor tener varias torres con alt高度差不多,这样方便布置联合平台。","Si el proceso de destilaje de propileno烷只采用高压脱丙烷塔,首先塔的设计比较高,而且在高压下容易导致塔釜中的烯烃、戊烷等易结焦组分在高温下结焦堵塞换热器,换热效果较差,不利于长期运行。其次,如果只采用低压脱丙烷塔,压力低则冷剂消耗必然会增多,增加了能耗。因此采用高低压脱丙烷塔,既有效降低再沸器结焦,又降低塔顶冷剂用量。"]

2018-07-19View Original

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前脱丙烷工艺为何要设置高低压两个塔?能分条解释一下吗。
Reply #22018-07-20
一个塔太高,孤零零的一个高塔,不方便,多塔高度差不多方便布置联合平台。
Reply #32020-08-24
前脱丙烷工艺如果只采用高压脱丙烷塔,首先塔设计比较高且高压下容易造成塔釜二烯烃、戊二烯等易结焦组分在高温下结焦堵塞换热器,较低换热效果,不利于长周期运行。其次如果只采用低压脱丙烷塔,他压低则消耗的冷剂必然会增多,增加了能耗,所以采用高低压脱丙烷塔,即有效降低再沸器结焦,又降低塔顶冷剂用量。

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