【Daily Question No. 123】2017.05.03

Thread Content

【Daily Question No. 123】May 03, 2017: After stopping the feed, (　) was immediately introduced into the reactor’s feed line for flushing. The reference answer can be seen after responding; points will be awarded if the key points are answered correctly. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Recirculated hydrogen or purge hydrogen (they are essentially the same thing). Scoring criteria: An incorrect answer earns 2 wealth points; an *incomplete* answer yields 3–8 points. A correct answer with a detailed explanation grants 10 wealth points, while a correct answer with additional, incomplete *answers* earns 15–20 wealth points. Please use these criteria for scoring. 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 may contact the campaign coordinator. 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 Chemical Forum)