【Q&A Question 200】2017.07.19
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This post was last edited by liuquan1100 on 2017-8-7 22:05. [Q&A Question 200] What are the hazards of a short circuit in the feed oil filter on 2017.07.19? The reference answers will be visible after responding; scoring is awarded by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Note: For questions of the type \"one question per day,\" if a person replies continuously for a month, that is, posts more than 30 times, their score will be assigned as 2 points, which is the lowest possible score. Click once to reply; if multiple replies are made, points will be awarded as appropriate, as deleting posts is also a waste of time. ①The function of the crude oil filter is to remove particulate impurities from the oil; this is especially important for devices that process oil further, as such oils contain a high amount of particulate impurities ； ②When the feed oil filter short-circuits, the feed oil will coking in the high-pressure heat exchanger, blocking it and reducing the heat exchange efficiency ； ③Furthermore, once particulate impurities enter the reactor, they will deposit within the bed layer, increasing the reactor pressure drop ； ④To ensure the stable and efficient operation of the device, it is necessary to prevent short circuits in the crude oil filter. Scoring criteria: 2 Wealth points for incorrect responses; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers accompanied by detailed explanations; responses that are correct but lack sufficient details earn 15–20 Wealth points. Please score according to these criteria. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters that have nothing to do with the answer are all considered malicious spamming; points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html Petrochemical Sector – “Creative Ideas for Energy Saving” Campaign (Phase 2 is in full swing) http://bbs.hcbbs.com/thread-1666758-1-1.html 2017 Coal Chemicals – “My Technical Upgrades” http://bbs.hcbbs.com/thread-1786290-1-1.html
The function of the crude oil filter is to remove particulate impurities from the oil; this is especially important for devices that process oil further, as such oils contain a high amount of particulate impurities； When the feed oil filter short-circuits, the feed oil will coking in the high-pressure heat exchanger, blocking it and reducing the heat exchange efficiency ； Secondly, once particulate impurities enter the reactor, they will deposit within the bed layer, increasing the reactor pressure drop ； Therefore, to ensure the stable and efficient operation of the device, it is necessary to prevent short circuits in the crude oil filter.
①The function of the crude oil filter is to remove particulate impurities from the oil; this is especially important for devices that process oil further, as such oils contain a high amount of particulate impurities； ②When the feed oil filter short-circuits, the feed oil will coking in the high-pressure heat exchanger, blocking it and reducing the heat exchange efficiency ； ③Furthermore, once particulate impurities enter the reactor, they will deposit within the bed layer, increasing the reactor pressure drop ； ④To ensure the stable and efficient operation of the device, it is necessary to prevent short circuits in the crude oil filter.
Impurities in the raw materials enter the reaction system, blocking the heat exchangers and causing scaling on the reactor’s lid. Heavy metals present in the raw materials poison the catalysts, leading to an increase in pressure drop within the reaction system and higher energy consumption.
Subsequent blockages in the pipes can even affect the entire process
If the feed oil takes a short circuit, mechanical impurities will be introduced into the reactor, causing an increase in reactor pressure drop and shortening the startup time. It will also clog the heat exchanger, reducing its heat exchange efficiency.
1. High heat exchange rates lead to coking, which blocks the heat exchangers and reduces their efficiency. 2. Impurities enter the catalyst bed in the reactor, increasing the pressure drop in the reactor
A short circuit can result in substandard lubricating oil. Increase friction.
A large amount of impurities enter the system; the seal of the feed pump is prone to leakage, which causes accumulation at the top of the reactor and an increase in system pressure drop
①The function of the crude oil filter is to remove particulate impurities from the oil; this is especially important for devices that process oil further, as such oils contain a high amount of particulate impurities； ②When the feed oil filter short-circuits, the feed oil will coking in the high-pressure heat exchanger, blocking it and reducing the heat exchange efficiency ； ③Furthermore, once particulate impurities enter the reactor, they will deposit within the bed layer, increasing the reactor pressure drop ； ④To ensure the stable and efficient operation of the device, it is necessary to prevent short circuits in the crude oil filter.