[Q&A Question 144] 2017.05.24
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This post was last edited by 955559 on 2017-7-21 at 22:52. [Q&A Question 144] May 24, 2017: What is the purpose of catalyst regeneration? The reference answer can be seen after *replying*; points will be awarded if the key points are answered correctly. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) The purpose is to remove carbon deposits from the catalyst surface, restore the catalyst’s activity, thereby reducing production costs and improving economic efficiency. Scoring criteria: 2 Wealth points for incorrect responses; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers accompanied by detailed explanations; responses that are correct but lack sufficient details earn 15–20 Wealth points. Please score according to these criteria. Note: If there are editing records after answering, only those who participated will be given points. 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 (fully updated) http://bbs.hcbbs.com/thread-1597792-1-1.html
Restore the catalyst to its original activity as much as possible.
The catalyst loses its activity; regeneration involves burning off the carbon deposits on its surface
The purpose is to remove carbon deposits from the catalyst surface, restore the catalyst’s activity, thereby reducing production costs and improving economic efficiency.
Regeneration involves burning off the carbon that covers the catalyst metal or acidic sites through high-temperature treatment; ion exchange is a method in which other metal ions are used to replace those that have poisoned the catalyst, thereby restoring its activity and extending its lifespan.
By burning, the coke attached to the catalyst is removed, restoring its activity and enabling the catalyst to be reused.
Burn off the coking attached to the surface of the catalyst, thereby restoring the activity of the catalyst that has been reduced.
Restore the catalyst’s activity and remove impurities adsorbed on the catalyst
Restore the catalyst’s activity to enable its recycling.