Pressure issues in the production of sulfuric acid using two rotations and two absorptions
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Recently, in the sulfuric acid production process, we have been using a two-turn two-suction process. However, the pressure at the outlet of the Roots blower is around 20 KPa, but once the sulfur dioxide gas reaches the first converter, the pressure drops to 8–9 KPa. Could it be that one of the heat exchangers A or B in the third heat exchange stage is blocked? After all, there are no pressure measurement instruments for sulfur dioxide in our heat exchangers 3a and 3b as well. The pressure differences for conversion and absorption in the subsequent sections are all within normal ranges; could it be that the sulfur dioxide gas lines in the shell side of heat exchangers 3a and 3b are blocked?
I think it’s caused by the pulverization of a layer of catalyst!
Hehe, from the fan outlet to the conversion section, there are only about 2 heat exchangers; it’s simple to find out which one is the problem
If it is blocked, the normal value is 3a
After the first-stage converter, my pressure dropped to 8–9 KPa. I’m not sure whether you’re referring to the upper or lower layer of the catalyst; if it’s the upper layer, then there must be a blockage in the heat exchanger ahead, while if it’s the lower layer, it means the catalyst has fragmented. Your company is really too frugal – they won’t even install a few pressure transmitters