How to perform material accounting for hydrorefining units?
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How to perform material accounting for hydrorefining units? What is the reason for the total difference in hydrogen volume when calculating total tank inventory? Our accounting method is as follows: 1. The total tank inventory of the day = the day's equipment and pipeline storage oil + the inventory of each tank in the tank area. The day's equipment and pipeline storage oil amount = the day's hydrogen amount + the day's raw material amount + the yesterday's equipment and pipeline storage oil amount - the day's product amount - the theoretical loss amount. 2. The day's total tank inventory = yesterday's total tank inventory + storage amount - outbound amount - the day's theoretical loss amount. The problem is that the total tank inventory difference between the two algorithms is the amount of hydrogen. I have never turned a corner. I hope you can give me some advice! At the same time, I would like to share how you calculate your workshop production reports!
How we calculate: The feed amount is: The output of raw oil, hydrogen, nitrogen, instrument air, steam, demineralized water and fuel gas is: Refined oil, discharged waste hydrogen, waste water, by-product oil and gas, and the above components have flow meters at the boundaries of the device, and statistics are collected every day for material accounting.