Air Separation Technology Section [Daily Question] 1/11/2012 (Wednesday)
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The last edit to this post was made by hxm2087 on 2012-1-13 at 08:43. Today’s 【Daily Question】 regarding the air separation oxygen production process: 1. The basic principle of air separation is to utilize (); among oxygen, nitrogen, and argon, () has the lowest boiling point, which is (). Precautions: 1. The purpose of this activity is to review the knowledge we have already learned, and to improve and strengthen the basic theoretical knowledge of all participants as they answer questions, thereby reinforcing what they already know and helping them recall what they have forgotten ； 2. Please be sure to hide your replies! Hide method address. A reply that is not hidden is considered an invalid reply ； 3. Participants receive 2 wealth points for participation; 4 points for getting two answers correct, and 6 points for getting all answers correct. Those who provide a brief analysis may receive an additional 1-5 points at the moderator’s discretion. Points will be deducted for irrelevant comments, and each reply can only be rated once. Any invalid ratings should be revoked by the respective moderators ； 4. Do not edit after replying; editing after replying will only earn you 2 wealth points as a reward ； 5. Be sure to set the reply to be visible when replying; otherwise it will be deleted ； 6. Members who have any objections to the questions can contact me via private message to discuss them ； 7. The answer will be announced in the next issue ； 8. Answers to the previous question: Throttling refrigeration, Expansion refrigeration 0 ； 9. Link from previous issue
Low-temperature distillation method； Nitrogen ； Minus 196 degrees
Reply 1# hxm2087 Low-temperature distillation method, nitrogen –196℃
1. The basic principle of air separation is to utilize (the distillation principle, based on the different relative volatilities of the three components). Among oxygen, nitrogen, and argon, (oxygen) has the lowest boiling point, which is ().
(Low-temperature distillation method), (Nitrogen), (--196°C).
Low-temperature distillation method, nitrogen, -196℃
1. The basic principle of air separation is to utilize the difference in boiling points of gases; among oxygen, nitrogen, and argon, (nitrogen) has the lowest boiling point, at (-196).
Reply to 1# hxm2087: Air distillation relies on the different boiling points of various substances; nitrogen’s boiling point is -195.8°C
(Low-temperature distillation method), (Nitrogen), (-196°C)
Low-temperature distillation method, nitrogen, -196 degrees
The basic principle of air separation is to utilize the difference in boiling points of oxygen and nitrogen for cryogenic separation. Among the three components—oxygen, nitrogen, and argon—it is (nitrogen) that has the lowest boiling point, at (-196°C).