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This post was last edited by 955559 on 2017-7-21 22:37. [Daily Question No. 097] 2017.04.07: For a reactor in which the catalyst has not been regenerated, what is the operating environment for catalyst removal? A. Oxygen environment B. Nitrogen environment C. Hydrogen environment D. Air environment. The reference answers will be visible after responding; scoring is possible by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) B 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 Savings” campaign (sponsors sought; highest returns ever available) http://bbs.hcbbs.com/thread-1666758-1-1.html Sponsors are being sought; those interested should contact the campaign coordinator. (Sponsors of the event are entitled to the policy allowing them to include promotional ads as sponsors in various events held in the petrochemical region for one year.) The Petrochemical Advanced Processing Edition – the event to share pictures of chemical equipment has begun! A vast amount of wealth, along with HCH 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: HCH Chemicals Forum)
For reactors where the catalyst has not been regenerated, the operating environment for catalyst skimming is (B). A. Oxygen environment B. Nitrogen environment C. Hydrogen environment D. Air environment