【Daily Question】Catalytic Cracking, Coking, and Reforming Version 20170204

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To increase the popularity of this section, a daily quiz activity has been launched. The purpose of this activity is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, they can also easily bring wealth home :) . Participation: Prize 3 Wealth ； Correct answer: Reward of 8 wealth points ； Note: Questions from the same day will receive full feedback if answered on the same day; answers given the next day will earn 3-5 wealth points. This post is valid for 48 hours. http://bbs.hcbbs.com/static/image/hrline/4.gif Multiple-choice question (Catalysis section): The reasons for the formation of carbon piles are: ( ). A: Sudden significant increase in char formation. B: Insufficient main air flow. C: Insufficient burning capacity of the regenerator. Correct answers: ABC. Petrochemical sector – An activity aimed at generating new energy-saving ideas through creative thinking: http://bbs.hcbbs.com/thread-1669271-1-1.html Xiaomi phones are waiting for you to claim them