[Q&A Question 086] 2018.03.27
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This post was last edited by Internet Invisible Man on 2018-3-27 at 14:30. [Q&A Question No. 086] 2018.03.27: Briefly describe how the hydrogenation unit handles interruptions in the supply of external PSA hydrogen Phenomenon: (1) The outlet flow rate indicator of the new hydrogen compressor is zero ； (2) The flow rate of circulating hydrogen decreases, and the system pressure drops. Handling: (1) Inquire with the scheduler about the cause of the accident ； (2) Slightly reduce the reactor inlet temperature ； (3) Slightly reduce the hydrogen feed rate ； (4) Expand the circulation of the device and take measures to prevent condensation in dead corners of the process flow ； (5) Adjustment operation. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Due to the limitations on the number of posts in the “One Question per Day” section, “One Image per Day” has been moved to the registered devices section; you can access it through the directory I posted. For management purposes, if you need to access content from a few days ago, please go to the summary post below to enter the “My Registration Season” event – (Note: This event is currently ongoing in the Chemical Engineering section). https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=18978 For the daily questions section related to chemical engineering technology training in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888971 For the daily image section related to registered equipment in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970 For the Q&A section related to hydrogen production and hydrogenation technologies in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888968 For the daily questions section related to LNG technology in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888973 For the Q&A section from 2017 (updates have started): https://bbs.hcbbs.com/thread-1657793-1-1.html For the daily questions section from 2017 (updates have started): https://bbs.hcbbs.com/thread-1657794-1-1.html For the daily image section from 2017: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1875160 For the list of daily questions related to LNG in 2017: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1804162 For the Q&A section from 2016 (all updates completed): https://bbs.hcbbs.com/thread-1597792-1-1.html
Phenomenon: (1) The outlet flow rate indicator of the new hydrogen compressor is zero； (2) The flow rate of circulating hydrogen decreases, and the system pressure drops. Handling: (1) Inquire with the scheduler about the cause of the accident ； (2) Slightly reduce the reactor inlet temperature ； (3) Slightly reduce the hydrogen feed rate ； (4) Expand the circulation of the device and take measures to prevent condensation in dead corners of the process flow ； (5) Adjustment operation.
1. Contact the dispatch team to determine the cause of the accident； 2. Slightly reduce the reactor inlet temperature ； 3. Check whether there are any leaks in the high-pressure flanges and heat exchangers ； 4. Confirm the equipment and units that are out of service on site
1. Contact the dispatch team to determine the cause of the accident； 2. Slightly reduce the reactor inlet temperature ； 3. Check whether there are any leaks in the high-pressure flanges and heat exchangers ； 4. Confirm the equipment and units that are out of service on site
1. Contact the dispatcher to determine the cause； 2. Slightly reduce the reactor inlet temperature
Phenomenon: (1) The outlet flow rate indicator of the new hydrogen compressor is zero； (2) The flow rate of circulating hydrogen decreases, and the system pressure drops. Handling: (1) Inquire with the scheduler about the cause of the accident ； (2) Slightly reduce the reactor inlet temperature ； (3) Slightly reduce the hydrogen feed rate ； (4) Expand the circulation of the device and take measures to prevent condensation in dead corners of the process flow ； (5) Adjustment operation.
Answer: Phenomenon: (1) The outlet flow rate indicator of the new hydrogen compressor is zero； (2) The flow rate of circulating hydrogen decreases, and the system pressure drops. Handling: (1) Inquire with the scheduler about the cause of the accident ； (2) Slightly reduce the reactor inlet temperature ； (3) Slightly reduce the hydrogen feed rate ； (4) Expand the circulation of the device and take measures to prevent condensation in dead corners of the process flow ； (5) Adjustment operation. Is there anything wrong with the title?
Answer: Phenomenon: (1) The outlet flow rate indicator of the new hydrogen compressor is zero； (2) The flow rate of circulating hydrogen decreases, and the system pressure drops. Handling: (1) Inquire with the scheduler about the cause of the accident ； (2) Slightly reduce the reactor inlet temperature ； (3) Slightly reduce the hydrogen feed rate ； (4) Expand the circulation of the device and take measures to prevent condensation in dead corners of the process flow ； (5) Adjustment operation.
Enter a loop to wait for the hydrogen to recover.
Stop feeding; enable hot oil circulation in the reaction system
Contact the dispatcher to determine the cause and take action