【Daily Question】Catalytic Cracking, Coking, and Reforming Version 20170226

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To increase the popularity of this section, a daily quiz campaign has been launched. The goal of this campaign 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 of 5 Wealth ； Correct answer: Reward of 10 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 5-8 wealth points. This post is valid for 48 hours. Fill-in-the-blank: The performance evaluation criteria for catalytic cracking catalysts mainly include six aspects: , , , , , and . The performance evaluation criteria for catalytic cracking catalysts mainly include six aspects: activity, specific surface area, selectivity, stability, resistance to metals, particle size distribution, and wear resistance. ======================== Petroleum Chemical Zone—The “Creative Ideas” event for energy-saving innovations: http://bbs.hcbbs.com/thread-1669271-1-1.html Xiaomi phones are waiting for you to claim them