Take the ethylene feed out of the reactor
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This post was last edited by ludinggi on 2009-6-11 22:00. For a planned shutdown, the ethylene feed is normally taken out of the reactor in the reverse order that it was introduced
For a planned shutdown, the ethylene feed is normally taken out of the reactor in the reverse order that it was introduced. For planned shutdowns, the ethylene feed is typically removed from the reactor in the opposite sequence to that in which it was added
For a planned shutdown, the ethylene feed is normally removed from the reactor in the reverse order that it was introduced. In the case of a planned shutdown, the ethylene feed to the reactor is stopped in the opposite order to that in which it was fed. Here, “introduce” should mean “feed in” rather than “give an introduction”, right?
I have a slight disagreement: I think the feed should be in the past participle form, serving to modify ethylene. The ethylene feed refers to the ethylene that is added. “take out” should be translated as “take out”. For a planned shutdown, the ethylene feed is normally removed from the reactor in the reverse order that it was introduced. In the case of a planned shutdown, the ethylene feed is typically withdrawn from the reactor in the opposite sequence to that in which it was fed in. Everyone is right; \"feed\" should be a noun meaning \"feeding material.\" I have made the correction. The previous incorrect understanding has not been removed, so it can serve as a reference for those who come later. This post was last edited by solar3124 on 2009-2-10 at 11:21.]
the ethylene feed – the ethylene feed taken out of the reactor; it was introduced. In this sentence, “it” refers to the ethylene feed, and “introduced” means to introduce (the feed) into the reactor
The past participle of “feed” is “fed”. “Take out” means to remove or take something away; wouldn’t it be better to translate it as “discharge” in this context? For planned shutdowns, the added ethylene is usually removed from the reactor in the reverse order of the feed.
Could someone explain: The discharge order is the opposite of the feed order. How exactly does this work? I feel the same as everyone else; intuitively, it should be translated in that way, but I’m confused about how to implement it, so I’m also considering whether there might be a possibility of an \"opposite direction\"
The feed generally passes through a series of heat exchangers, instrument control systems, pumps, etc., from the storage tank to the reactor. Please take a look at a segment from the startup procedure of a certain unit: The feed circuit: T-2201—→FC-220102(off)—→E-2201—→C-2201. The non-aromatics reflux circuit: D-2201—→P-2202A/B—→FC-220401(off) —→C-2201. The non-aromatics return circuit: D-2201—→P-2202A/B—→LV-220401(off) —→non-aromatics off-specification lines—→SED feed tank T-2201. To reverse this order, simply reverse the direction of the arrows.
During a planned shutdown, the ethylene feed is usually removed from the reactor in the reverse order to that in which it was introduced. When shutting down the plant as planned, the ethylene that has already been fed into the reactor is typically withdrawn in the opposite order to its feeding sequence.
That it was introduced – this is an attributive clause used to modify “order”, meaning “the said order”. “taken out” here should mean removing it from the reactor
Could it be translated as follows: For planned shutdowns, ethylene should generally be removed from the reactor in the reverse order to that of the feed. This sentence should appear in the operating procedures, outlining the methods and procedures to be followed during unplanned shutdowns.
taken out of the reactor Removed from the reactor? Why is it translated as “withdrawal”?
For a planned shutdown, the ethylene feed is normally removed from the reactor in the reverse order that it was introduced. In the case of a planned shutdown, the ethylene feed is typically taken out of the reactor in the opposite sequence to that used for feeding it in. (That is, the material withdrawal during shutdown)
For a planned shutdown, the ethylene feed is normally removed from the reactor in the reverse order that it was introduced. In the case of a planned shutdown, the ethylene feed is typically discharged from the reactor in the opposite sequence to that used for introducing it. First, it is necessary to understand the steps for introducing ethylene into the reactor while driving. Then the steps for parking become easy to understand. Importing materials is definitely very slow, in order to prevent excessive temperature changes. Since it’s not known which specific reactor it is, it’s hard to say anything else.
This phrasing is ambiguous: \"Removing the reactor\" means the reactor is taken out of use/disabled from the process. While the original text says that the ethylene feed is normally taken out of the reactor, which means something completely different.