【Daily Question No. 209】2017.07.28

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【Daily Question No. 209】July 28, 2017: Which of the following statements regarding the effect of hydrogen partial pressure in a hydrogenation unit on the catalyst is correct? ( ) A. A high hydrogen pressure accelerates the deactivation of the catalyst. B. A low hydrogen pressure can improve the stability of the catalyst. C. A high hydrogen pressure increases coking in the catalyst. D. A high hydrogen pressure can slow down the deactivation of the catalyst. The reference answers will be available after restoration; scoring is based on identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) D grading criteria: 2 Wealth points for incorrect attempts; 3–8 points for *incomplete* answers. 10 Wealth points for correct answers accompanied by detailed explanations; 15–20 Wealth points for correct answers with additional *insufficient* details. Please grade according to these criteria. 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 begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) 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 Petrochemical Zone – “Creative Ideas for Energy Saving” campaign (the second phase is in full swing) http://bbs.hcbbs.com/thread-1666758-1-1.html (Source: Haichuan Chemical Industry Forum Website)