Discussion on several issues such as sulfur formation at the gas holder outlet and blockage of the rich amine liquid line in the desulfurization tower.
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There is black oil inside the gas holder； The gas holder inlet is clean, while the outlet has coke powder ； Sulfur present in the buffer tank at the outlet of the gas holder compressor ； The rich amine liquid level in the packing desulfurization tower at the outlet of the gas holder compressor is blocked by coke powder. Preliminary analysis: 1) Light hydrocarbons are carried along when low-pressure gas is discharged to the gas holder ； 2) If low-pressure gas containing coke dust is discharged into the gas holder, why is the inlet pipeline of the gas holder clean while the outlet is dirty? 3) How is hydrogen sulfide + oxygen generated in the buffer tank at the outlet of the gas holder compressor? ； At the gas holder outlet, O2+N2 = 20% (by volume) was measured ； Does that unit in the refinery discharge air at low voltage? 4) The rich amine liquid line in the filler desulfurization tower is blocked by coke powder – is it the lean amine liquid that contains coke powder, or is it the high-pressure stream?
The gas entering the low-wattage system contains air; this is something we have, such as the exhaust gas from liquefied gas desulfurization.
May I ask, how did you solve this? Where does the exhaust go? Sulfur exhaust gas heater?
They’re not saying anything anymore; the exhaust power has been reduced. That is the exhaust gas from alkali solution regeneration; we previously also designed it to have lower power consumption, but there seemed to always be some issues. Didn’t you say earlier that there was coke powder at the outlet of the gas holder? It’s taken to the desulfurization tower, so why do you ask where the coke powder comes from now? I don’t understand
If low-pressure gas containing coke dust is discharged into the gas holder, why is the inlet pipeline of the gas holder clean while the outlet is dirty?
Are multiple gases mixed at the inlet before entering the gas holder? After thorough mixing inside the gas holder, some of the components reacted to produce elements. Such as ； C2H4 = CH4 + C (C deposition reaction) 2CO = CO2 + C (C deposition reaction) O2 + 2H2S = 2H2O + 2S
Can the C-reactive protein react at room temperature?
It is not clear what exactly is present in the gas tank; it is possible that the presence of certain substances has triggered reactions that would not occur at normal temperatures. Of course, these are just speculations; there have indeed been some incredible things that have happened in chemical production.
Based on our experience in 2021, when the outlet of the amine-poor desulfurization tower gets blocked by a substance similar to carbon powder, it is recommended to conduct a spectral analysis to determine the composition of this substance. We initially thought it was carbon powder, but it turned out to be ferrous sulfide. To enable iron ions carried by amine solution corrosion in pipes to combine with hydrogen sulfide
Ferrous sulfide is a dangerous substance