【Daily Question No. 035】2017.02.04

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This post was last edited by 955559 on 2017-7-31 at 16:26. [Daily Question No. 035] On 2017.02.04, nitrogen purging must be carried out before driving in order to remove （　） from the system. A. Hydrocarbons B. Hydrogen sulfide C. Water D. Air. Refer to the answer key after reviewing; points will be awarded for identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Petrochemical Area – “Creative Ideas for Energy Saving” event: http://bbs.hcbbs.com/thread-1666758-1-1.html The New Normal Cup – Voting for the top 10 members of HaiChuan in 2016 is now underway; vote for the member you care about the most (please cast your valuable vote for the members in the Petrochemical Area). http://bbs.hcbbs.com/thread-1667649-1-1.html Summary post of Q&A questions for 2017 (updates available now). http://bbs.hcbbs.com/thread-1657793-1-1.html Summary post of daily questions for 2017 (updates available now). http://bbs.hcbbs.com/thread-1657794-1-1.html Summary post of Q&A questions from 2016 (all updates completed). http://bbs.hcbbs.com/thread-1597792-1-1.html Third-phase selection of outstanding management members at HaiChuan. http://bbs.hcbbs.com/thread-1655902-1-1.html Petrochemical Area – “Creative Ideas for Energy Saving” event: http://bbs.hcbbs.com/thread-1666758-1-1.html Xiaomi phones are up for grabs. Summary post collecting chemical engineering-related materials from the Petrochemical Section. http://bbs.hcbbs.com/thread-1654603-1-1.html Many prizes are waiting for you (Source: HaiChuan Chemical Forum)