【Picture of the Day】2016 07 14 What are the main devices in this device?

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This post was last edited by Learning is endless 166 on 2016-7-14 08:07. [Picture of the Day] 2016/07/14: What are the main devices in this device shown in the picture? Adsorption towers (pressure swing adsorption units also qualify). Promotion of petrochemical activities: Notice regarding the “I’m saving energy; where are you?” event in the petrochemical area: http://bbs.hcbbs.com/thread-1579199-1-1.html. This event offers awards in both text and image categories. When there are over 200 entries, an additional grand prize will be awarded, worth 600 Haichuan coins; if there are more than 300 entries, the grand prize value increases to 1,000 Haichuan coins, and for 500 entries it rises to 1,500 Haichuan coins. First prize: 3 Haichuan commemorative water cups. Second prize: 5 winners, each receiving 120 Haichuan coins. Honorable mentions: several winners, each receiving 200 Haichuan coins. 1. Thread on soliciting entries for award-winning content in 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. Summary of events under the “Haichuan Gratitude Season” [Petrochemical Section]: http://bbs.hcbbs.com/thread-1533218-1-1.html (Source: Haichuan Chemical Industry Forum). 4. Summary of professional “basic knowledge” threads in the [Petrochemical Section] (supported by the main forum; amazing prizes await): http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum). Haichuan, images, thread