【Daily Question No. 104】April 14, 2018

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【Daily Question No. 104】April 14, 2018: If isothermal dehydrogenation is not carried out when the hydrogenation unit is shut down, what might happen to this reactor? （　　） A. Surface decarburization B. Internal decarburization C. Hydrogen embrittlement D. Corrosion by hydrogen sulfide at low temperatures C (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) The validity period for this question is 48 hours; within those 48 hours, 10 wealth points are awarded for correct answers and 2 wealth points for incorrect answers ； If a response is given after 48 hours, the score is halved, regardless of whether it is correct or not ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please access it through the summary post below. https://bbs.hcbbs.com/home.php?mod=space&uid=719164&do=thread&view=me&from=space – Special section for registered users: Voting post for the “My Registration Season” event. https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1954223. APP short videos: The skill competition has started! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670