Acidic water stripping
Thread Content
In double-tower pressure stripping, the temperature at the top of the hydrogen sulfide removal tower is unstable, the pressure is high, the steam supply to the reboiler is low, and the temperature at the bottom of the tower fails to rise. What are the reasons for this? Under normal conditions, the top temperature is 50–70°, the pressure is 0.35–0.5 Mpa, and the bottom temperature is 155–165°. Under abnormal conditions, the top temperature exceeds 70°, the pressure is above 0.5 Mpa, and the bottom temperature is around 100–140°
It’s impossible to describe the problem clearly with just these few dozen words
What’s the reflux ratio? What percentage of the design load is the load? What are the specifications of the steam used? Is the pressure difference of the tower in line with the design data? Does the unstable condition refer to full reflux in a single tower, or normal production? Can single-tower full reflux work properly?
There are many factors; rule them out one by one. Stabilize the pressure first, and everything else second.