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Sulfur Recovery Daily Question 2018.10.6

2018-10-06View Original

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Question: What is liquid flooding in a packed tower? What is the phenomenon like? How to prevent it from happening? Answer: Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, deteriorating the mass transfer process and preventing the tower from operating properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #22018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #32018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #42018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly.
Reply #52018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #62018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.  
Reply #72018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #82018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #92018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #102018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.
Reply #112018-10-06
Liquid flooding in a packed tower occurs when the drag exerted by the upward-moving gas flow on the liquid flow becomes strong enough to prevent the liquid from flowing downward. As a result, the liquid fills the gaps in the packing layer; the liquid phase becomes the continuous phase, while the gas phase becomes the dispersed phase and rises in the form of bubbles. This leads to severe mixing of the liquid within the tower as well as entrainment of liquid droplets by the gas, thereby deteriorating the mass transfer process and preventing the tower from functioning properly. The flooding phenomenon in a packed tower is characterized by an **increase in the pressure drop across the packing layer and poor mass transfer efficiency. For the absorption tower of this device, it may lead to an increase in the H2S content in the purified exhaust gases, even to levels that exceed the specified limits. Preventive measure: Operate within the design load of the tower ; Adjust the flow rate of the absorption solvent appropriately ; To prevent solvent foaming, etc.

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