Sulfur Daily Question, June 3------3 points for participation, 10 points for a correct answer
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This post was last edited by Sulfur-Zinc-Aluminum on 2016-6-7 at 10:19. I’ve had a lot on my plate lately, so I haven’t been able to post a new question every day. . . What is the reason for the extremely high H2S content in the depleted solution after regeneration?
The temperature, pressure, and reflux control of the distillation tower are not proper
There is internal leakage in the heat exchanger; the temperature rise does not meet the requirements, and steam stripping is not satisfactory!
1. The regeneration temperature is low. 2. The circulation volume of the amine solution is too low. 3. Heat exchanger leakage. 4. The backflow is too large.
①The regeneration temperature is low, and H2S cannot be effectively desorbed at this temperature. ②The circulation volume of the amine solution is too low
Reasons: 1. Low temperature at the bottom of the regeneration tower; 2. Pressure in the regeneration tower; 3. Inappropriate gas-liquid load in the regeneration tower; 4. Too low temperature at the top of the regeneration tower; 5. High liquid level in the shell side of the reboiler; 6. High CO2 content in the rich liquid
The temperature at the bottom of the tower is too low； The circulation volume is too low ； Excessively high pressure in the regeneration tower
1. The temperature at the bottom of the regeneration tower is too low. 2. The amount of rich liquid entering the tower is increased, or its temperature is too low. 3. The solvent circulation rate in the desulfurization tower is too low, resulting in an excessive acidic gas load on the solvent. 4. The pressure in the regeneration tower is too high. 5. There is a leak in the heat exchanger between the lean and rich liquids
1) The bottom temperature of the regeneration tower is low, resulting in poor H2S separation； 2) The liquid level at the bottom of the tower is too low, resulting in a short residence time for the solvent ； 3) The pressure at the top of the regeneration tower is too high, resulting in an increase in H2S content ； 4) Pressure buildup in acidic gas pipelines ；
1. The temperature at the bottom of the regeneration tower is too low. 2. The amount of rich liquid entering the tower is increased, or its temperature is too low. 3. The solvent circulation rate in the desulfurization tower is too low, resulting in an excessive acidic gas load on the solvent. 4. The pressure in the regeneration tower is too high. 5. There is a leak in the heat exchanger between the lean and rich liquids