【Daily Question No. 113】April 23, 2017

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This post was last edited by 955559 on 2017-7-21 at 22:44. [Daily Question No. 113] 2017.04.23: What does the distillation section indicate? A. The section from below the distillation tower’s feed inlet to the bottom of the tower B. The section from above the distillation tower’s feed inlet to the top of the tower C. The section from above the recycle stream to the top of the tower D. The section from below the recycle stream to the bottom of the tower. The reference answers can be seen after responding; scoring is possible by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) B grading 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 grade according to these criteria. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) 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 Sector – “Creative Ideas for Energy Saving” campaign (sponsors sought; highest returns ever) http://bbs.hcbbs.com/thread-1666758-1-1.html Sponsors are being sought for this campaign; those interested can contact the event organizer. Petrochemical deep processing version – the event to share pictures of chemical equipment has started! A vast amount of wealth, along with Hchuan coins, is waiting for you to claim it: http://bbs.hcbbs.com/thread-1760733-1-1.html. Notice regarding the collection of chemical engineering technical materials in the “Petroleum and Chemicals Section”: http://bbs.hcbbs.com/thread-1614796-1-1.html (Source: Hchuan Chemicals Forum)