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2017-02-17View Original

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Reply #22017-02-17
继续翻译剩余的文本:
Reply #32017-02-17
在苯抽提过程中,产品苯中存在少量杂质是正常的,但由于非芳烃在抽提溶剂中的溶解平衡和分馏过程中的蒸发平衡,这些微量杂质是不可避免的。只要这些杂质不影响产品品质即可。含苯污水量的增加可能与溶剂再生的操作情况有关。
Reply #42017-02-19
八. 如果溶剂再生塔没有投用,建议调整抽提塔的操作,确保混合芳烃中的非芳烃含量合格。首先检查换热器及水冷器是否泄露,其次控制好回收塔回流罐的界位,防止油带水。
Reply #52017-02-21
九. 溶剂的温度和灵敏板温度需要正常,如果水含量过高,需要在抽提进料缓冲罐中排水。确保溶剂回收塔回流罐以及抽提塔、苯回收塔的回流罐界位正常。

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