The hydrogen sulfide in the naphtha in the hydrogenation stabilization tower fluctuates high and low. What causes it?
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The hydrogen sulfide in the naphtha in the hydrogenation stabilization tower fluctuates high and low. What causes this? The operating parameters in the picture
Is it caused by fluctuations in the sulfur content in the raw materials or by fluctuations in the desulfurization operating conditions?
Others have written 1. Is there any change in the sulfur in the raw oil? 2. After the oil is changed, what happens to the reaction temperature? Is the temperature increasing or decreasing? If the sulfur rises, you can increase the reactor bed temperature appropriately. 3. How much hydrogen sulfide is in the hydrogen system? If it is too high, you can appropriately reduce the amount of vulcanizing machine 4 stripping steam. The amount of stripping steam should not be too large and should be between 1% and 3% of the volume fraction of the feed amount. 5. Have you tested the sulfur content at the bottom of the hydrogen sulfide gas tower? 6. Are all temperature points normal? 7. Is the instrument easy to use? Are you sure the instrument works well? 8 If you don’t mind, you can send me your diversion flow chart.
I think my operating parameters are perfect, but occasionally they still fluctuate up and down, as you said at points 1 and 2.
It's nothing more than fluctuations in flow, pressure and heat source, but whether it's the air blockage that causes the flow.
Check whether there are any abnormal changes in the reflux temperature and pressure at the top of the tower, and consider the reflux problem.
The factors that affect hydrogen sulfide are nothing more than 1. Temperature changes at the top of the tower； 2. Changes in tower top pressure ； 3. Changes in reflux flow at the top of the tower ； 4. Changes in sideline delivery volume ； 5. Flow rate and temperature changes of reboiling at the bottom of the tower ； 6. Feed temperature and flow changes ； 7. Changes in liquid level at the bottom of the tower ； Once it's under control, it should be relatively stable.