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["Перевод метода операционных изменений при утяжелении сырья катафракции",,"Когда сырье для катафракции утяжелеется, "

2017-04-16View Original

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当催化裂化加工的原料变重时,在操作上有什么变化?希望大家集思广益,共同学*进步! 1,降加工量 2,降原料油预热温度,提高剂油比 3,投用终止剂,提反应温度 4,加强催化剂烧焦 5,提高催化剂活性 6.。。。
Reply #22017-04-19
操作上原料变重后再生温度上升如果不及时调整会谈堆积,对于富氧再生的装置氧含量变低,要再生器加强取热容易,更出现尾燃现象。产品分布上在相同转化率下焦炭和气体产量上升,柴油收率下降,这时如果有回炼油的装置可以减小回炼量防止生焦过高,增加单程转化率。产品的不饱和度上升,烯烃含量上升,所以要适当补充新鲜剂,有取热器的装置加大外取热量。分馏塔的热量会变大,温度控制不变时汽油干点下降。
Reply #32017-04-19
还有贫氧再生的装置调节不及时容易出现谈堆积现象。取热不及时会热量过剩使再生器超温。

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