【Daily Question No. 186】2017.07.05

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This post was last edited by liuquan1100 on 2017-8-7 09:53. [Daily Question No. 186] 2017.07.05: When the time required for the catalyst in the hydrogenation unit to carry oil under hot hydrogen conditions is reached, and ( ), the process of carrying oil under hot hydrogen by the catalyst comes to an end and the cooling phase begins. A. The liquid level in the high-pressure separator no longer rises. B. The interface level in the high-pressure separator no longer rises. C. The temperatures at the inlet and outlet of the reactor are equal. D. It is not possible to determine the visible reference values after recovery; scoring is based on identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Note: For questions of the type \"one question per day,\" if a person replies continuously for a month, that is, posts more than 30 times, their score will be assigned as 2 points, which is the lowest possible score. Click once to reply; if multiple replies are made, points will be awarded as appropriate, as deleting posts is also a waste of time. A Scoring Criteria: 2 Wealth points for incorrect responses; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers accompanied by detailed explanations; responses that are correct but lack sufficient details earn 15–20 Wealth points. Please use these criteria for scoring. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters unrelated to the answer are all considered malicious spamming; points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updates have started) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have started) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html