【Daily Question】Catalytic Coking Reformate Blending Version 20171117

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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: Under unchanged other conditions, if the proportion of light components in the feed decreases, which of the following statements accurately describes the composition of the materials at the top and bottom of the distillation column? A. The purity of the material at the bottom decreases, while the purity of the material at the top increases. B. The purity of the material at the bottom increases, while the purity of the material at the top decreases. C. The purity of both the material at the bottom and the material at the top remains unchanged. D. The purity of the material at the bottom remains unchanged, while the purity of the material at the top decreases. Answer: B. Please participate by clicking; our ultimate goal is for everyone to acquire knowledge. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days. 【Q&A】Summary post for 2017 on the catalytic coking reformate blending version: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary post for 2017 on the catalytic coking reformate blending version: https://bbs.hcbbs.com/thread-1811219-1-1.html