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English Translations » 炼制(催化焦化深加工) » 【Daily Question】Catalytic Coking Reformate Blending Version

【Daily Question】Catalytic Coking Reformate Blending Version 20171014

2017-10-14View Original

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Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Multiple-choice question: Which method is used to connect and fix the two end tube sheets to the shell by welding? (　　) A. Fixed-tube plate heat exchanger B. Floating-head heat exchanger C. U-tube heat exchanger D. Packed-case heat exchanger Answer: A. Please take a moment to participate; our ultimate goal is for everyone to acquire knowledge. http://bbs.hcbbs.com/static/image/hrline/1.gif http://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be published automatically after two days. Petroleum Chemical Zone – “Creative Ideas for Energy Saving”: The Second Event is in Full Swing http://bbs.hcbbs.com/thread-1666758-1-1.html 2017: “My Technical Upgrades” in the Coal Chemical Industry http://bbs.hcbbs.com/thread-1786290-1-1.html [Daily Question] Catalytic Cracking and Reformation: A Summary of 2017 http://bbs.hcbbs.com/thread-1811219-1-1.html

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Translated at 2026-07-21 05:06:57

Original: https://bbs.hcbbs.com/thread-1849618-1-1.html

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