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I would like to ask what the normal ranges are for the yields of isooctane and household liquefied gas in alkylation equipment What aspects should be paid attention to in production?

2016-12-09View Original

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Urgent! ! ! Recently, at the alkylation plant where my friend works, in less than half a month since production started, more than 5,000 tons of raw materials were used. About 3,500 tons of isooctane were sold, while only around 700 tons of liquefied petroleum gas for domestic use were sold (with over 300 tons being sold and the remaining 300 tons going into the raw material tanks). Is this production level abnormal? Moreover, the production team is unable to provide a clear explanation for this, nor can they account for the whereabouts of the missing amount of liquefied petroleum gas for domestic use. I hope an expert can tell me where the problem lies Is there a possibility of fraud regarding the actual amount of raw materials fed into the device?
Reply #22016-12-09
Check the equipment design documents and perform material balance calculations
Reply #32016-12-09
Based on a loss rate of 1.5%, isopentane accounts for roughly 70% of the output; therefore, shouldn’t liquefied petroleum gas for domestic use make up about 28.5%?
Reply #42016-12-09
This is too complicated. Where should samples be taken when collecting liquefied gas as raw material, and is there a possibility of water contamination? For spherical tanks, water cut is carried out at the end of each shift; the accuracy of the flow meters used for measurement, the amount of material stored in the entire system, the accuracy of the load cells, the possibility of products being stolen when sold externally, as well as the material found at the bottom of the tanks under normal pressure (the space below the level indicated by the measuring gauge)…… At the beginning of operation of such a system, the most important aspect to pay attention to is storage and transportation – it is necessary to ensure proper control both in terms of raw materials entering the facility and products leaving it. Eventually, all issues that are not clear at first will become apparent over time. If there’s anything still unclear, feel free to ask me via private message.
Reply #52016-12-09
Thank you so much! Could you please provide your contact information? I would like to learn more, thank you!
Reply #62016-12-09
Thank you so much! Could you please provide your contact information? I would like to learn more, thank you!
Reply #72016-12-09
I’ve added you as a friend. :handshake
Reply #82016-12-09
Based on the data available at present, the only possibility is that there was an error in the calculations. Last year, a company in Ningxia also experienced high losses, but not to this extent. We should first consider the calculation methods, then the by-products, and subsequently the emissions, etc. (Personal opinion)
Reply #92016-12-10
What is the method used for measurement?

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