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["Como entender que o processo de destilação se需要保持浓度差才能进行?",,"No livro de destilação que tem uma passagem: quando o estado gase态与液态接触时,必须存在浓度差和温度差,也就是上升的气相中轻组分浓度要低于该塔板上平衡时气相中轻组分浓度。怎么理解浓度差的原理,上升的气相中轻组分浓度比平衡时的低?",,"Deve ser精馏塔中,轻组分自下而上浓度逐步增加,上升的气相中轻组分肯定比上次塔板的气相中轻组分少。逐步浓缩。",,"Você pode entender a trocaie态液交换间的汽液交换理解为相互传质传热的过程,那本书说得很透彻。"]

2019-07-04View Original

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在看精馏书籍里面有一段话:汽液相接触时,必须存在浓度差和温度差,也就是上升的气相中轻组分浓度要低于该塔板上平衡时气相中轻组分。怎么理解浓度差的原理,上升的气相轻组分比平衡时轻组分浓度低?
Reply #22019-07-06
应该是精馏塔中轻组分自下而上浓度逐步增加的,上升的气相轻组分肯定比上次塔板的气相中轻组分少。逐步浓缩。
Reply #32019-11-30
你可以把塔盘间的汽液交换理解为相互传质传热的过程,那本书说的很透彻

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