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Fill-in-the-blank questions on October 22, 2017; replies will earn 0–6 points (no scoring for replies sent more than 1 day after posting. Thank you for your replies)

2017-10-22View Original

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The crude oil circulation heating phase during the commissioning of a atmospheric and vacuum distillation unit consists of three main aspects: ( ), ( ), ( ). The entire process is characterized by a rise in temperature, and the main challenge in ensuring this temperature increase is dehydration. During the dehydration stage, the method of “listen once”, “look twice”, and “observe three times” is used to determine whether all the moisture has been removed.
Reply #22017-10-22
Heating, dehydration, crude oil switching
Reply #32017-10-22
Heating, dehydration, crude oil switching
Reply #42017-10-22
Heating, dehydration, crude oil switching
Reply #52017-10-22
Heating, dehydration, crude oil switching

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