Are there any technicians experienced in diesel hydrodesulfurization and fractionation?
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I would like to ask for advice on how to stabilize the liquid levels in the debutanization tower and the distillation tower. Especially during shift changes, the liquid level either drops too low or rises too high. Under normal conditions, operations can be carried out smoothly, but when it comes to controlling the liquid levels, it’s possible to adjust them properly 10-15 minutes in advance. However, at the exact hour, the liquid level either falls or rises. I hope experienced colleagues can share some tips (for example, since the day shift ends at 4 p.m., the liquid levels need to be controlled around 2 p.m., with the levels reaching the desired values at 3 p.m.: 60 for the debutanization tower, 15 for the distillation tower, and 40 for the stripping tower. After 3 p.m., there shouldn’t be too many issues with the levels)
Isn’t this liquid level automatically controlled? If you need to control the liquid level manually, you have to adjust it slowly; there’s no other way I guess.
The liquid level should be kept as stable as possible, especially during distillation; avoid making sudden adjustments to the liquid level, as this can cause instability in the liquid levels throughout the subsequent system
Well then, it would be sufficient to keep the liquid level within a reasonable range for the entire class, thus avoiding chaotic adjustments at the designated time
Well, the liquid level is controlled manually. I didn’t have much experience a few days ago, but I’ve gradually figured it out over these past days. In fact, I think that if the goal is solely to control the liquid level, it can cause fluctuations in the tower and issues with the quality of the product. It’s best to maintain stable operation of the facility; the pressure in the tower and the feed temperature should not experience too many fluctuations. One shouldn’t violate operating procedures just to increase yield
Yes, I also feel that it’s not necessary for this thing to be perfect; after all, the feed volume for distillation changes, and it’s normal for the liquid levels in each tower to fluctuate. It’s still important to maintain stable production
All those practices of competing, learning from each other, helping one another, and striving to outdo others are nonsense. I don’t believe there’s a big difference in yield when four classes operate normally; it’s still the adjustment of liquid levels that causes the difference. To put it bluntly, it’s stealing from others’ yields!