Catalytic Coking Reformate Blending Version 20180727
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Participation: Prize 1 Wealth； Correct answer: Reward of 3 wealth points ； Note: This post is valid for 48 hours. Single-choice question: What is the phenomenon that occurs during flooding? ( ) A. The liquid level in the downcomer is low. B. The pressure drop across the tower remains unchanged. C. The pressure drop across the tower decreases. D. The pressure drop across the tower increases. Answer: D. Your participation is the greatest support for our work. 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 published automatically after two days. “My Device, My Home – Large-Scale Original Photo Sharing Event (Part 2): https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 【Q&A】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1811219-1-1.html
This post was last edited by wuqitao0000 on 2018-7-27 10:20 D
Choose D, because the fundamental cause of flooding is an excessive gas or liquid load, which prevents the liquid in the downcomer from flowing downward, resulting in fluctuations in tower pressure. So choose D