【Daily Question No. 165】June 14, 2017

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【Daily Question No. 165】On June 14, 2017, during the period when hot hydrogen carried oil in the reactor of the hydrogenation unit, it was necessary to ensure that () was present in the circulating hydrogen in order to prevent the catalyst from being reduced. A. The NH3 content should be no less than 0.1%. B. The H2S content should be no less than 0.1%. C. The H2 content should be no less than 95%. D. The FeS content should be no less than 0.5%. The reference answers can be seen after responding; points will be awarded as long as the key points are answered correctly. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) B rating criteria: 2 Wealth points for incorrect attempts; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers accompanied by detailed explanations; those with correct answers but incomplete supplementary *answers* receive 15–20 Wealth points. Please use these criteria for scoring. Note: If there are editing records after answering, only points will be awarded to those who participated. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters that have nothing to do with the answer are all considered malicious spamming; points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updating now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updating now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (already updated) http://bbs.hcbbs.com/thread-1597792-1-1.html