【Daily Question】2016 04 05 Hydrogenation Sector Multiple-choice Question

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【Daily Question】2016 04 05 Hydrogenation Section – Multiple Choice: What is generally used as a medium for drying catalysts? A. Recycled hydrogen B. Recycled air C. Recycled steam D. Recycled nitrogen (D) @GuanGongYu @sgwj @lyf0506 @dlutyj @stone2000 @tiyiss @guoliqun Promotion of petrochemical-related activities: 1. Contest for posts on dividing content into specific categories – http://bbs.hcbbs.com/thread-1568416-1-1.html (Source: Haichuan Chemical Industry Forum) 2. [Petrochemical Weekly] Issue No. 9, dated 2016-3-12 (Summary of recent petrochemical activities) – http://bbs.hcbbs.com/thread-1568615-1-1.html (Source: Haichuan Chemical Industry Forum) 3. “Haichuan Gratitude Season” – Summary of activities in the Petrochemical Section – http://bbs.hcbbs.com/thread-1533218-1-1.html (Source: Haichuan Chemical Industry Forum) 4. Summary of professional “basic knowledge” posts in the Petrochemical Section (Supported by the main forum; amazing prizes await you) – http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum)