试题与答案

一般在120~160℃就可能观察到低变催化剂有还原现象,只是配氢后的诱导期可能比较长

题型:判断题

题目:

一般在120~160℃就可能观察到低变催化剂有还原现象,只是配氢后的诱导期可能比较长,所以,在120~160℃就应该开始配氢气,以防超温。

答案:

参考答案:错

解析:低变催化剂还原,~般在120~160℃就可能观察到催化剂有还原现象,但配氢后的诱导期可能比较长,所以,为了观察和操作方便、防止超温,床层温度稳定在180℃左右才开始配氢气还原。

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