The issue of water content in lean and rich oils
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In the crude benzene absorption process at our plant, is the water content in the lean oil higher than that in the rich oil? I’d like to ask an expert; I really can’t figure it out. Thank you. The lean oil is sampled and analyzed before entering the absorption tower, while the rich oil is sampled and analyzed at the exit of the absorption tower.
This could be caused by a leak in one or two of the oil-starved coolers; however, when there is a leak, oil droplets will appear in the circulating water or in the low-temperature water tank. You can try turning off each heat exchanger individually to identify the problem! When leaks occur here, it is usually oil deficiency that causes fluid to flow into the pool; since the pressure due to oil deficiency is higher than that of the cold water in the circulation system, this isn’t necessarily the cause either! Please check it yourself! ! !
What was said upstairs makes a lot of sense; if there is a leak in the oil cooler, it should be oil that gets into the water. That’s why I find it strange. Moreover, the moisture content in the lean fuel is always slightly higher than that in the rich fuel – 0.098 for the lean fuel and 0.075 for the rich fuel
Adjust the steam pressure of the benzene removal tower and control the superheated steam temperature of the tubular furnace.