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Sulfur Recovery Daily Question 2018.12.21

2018-12-20View Original

Thread Content

What is the effect of solvent temperature on the adsorption and desorption of hydrogen sulfide? Answer: The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #22018-12-20
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #32018-12-20
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #42018-12-20
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #52018-12-20
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #62018-12-21
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #72018-12-21
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #82018-12-21
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption occurs. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.
Reply #92018-12-21
Answer: The exhaust gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption occurs. However, if the temperature of the solvent is too low, its viscosity increases
Reply #102018-12-21
Answer: The exhaust gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption occurs. However, if the temperature of the solvent is too low, its viscosity increases
Reply #112018-12-22
The flue gas containing H2S enters the absorption tower, where H2S is absorbed by a methyldiethanolamine solution at lower temperatures. This absorption process is exothermic; the lower the temperature, the better the absorption. However, if the temperature of the solvent is too low, its viscosity increases, which hinders absorption. Therefore, the temperature of the solvent entering the absorption tower is generally maintained between 20 and 50°C. After the methyl diethanolamine solution that has absorbed H2S enters the regeneration tower, H2S is desorbed from the solution at higher temperatures. This desorption process is endothermic; the higher the temperature, the more effective the desorption. However, excessively high temperatures increase energy consumption and may also cause the decomposition of methyl diethanolamine. Therefore, the temperature of the gas stream returning to the tower in the solvent regeneration tower should be controlled between 115 and 125°C.

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