试题与答案

聚丙烯脱水塔干燥分子筛用的氮气加热器一般可采用()加热介质。A、热油 B、低压蒸气

题型:单项选择题

题目:

聚丙烯脱水塔干燥分子筛用的氮气加热器一般可采用()加热介质。

A、热油

B、低压蒸气

C、高压蒸汽

D、电加热器

答案:

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