Sulfur Daily Question, May 16------3 points for participation, 10 points for a correct answer

Internal reflux: The vapor is condensed directly within the tower, thereby creating reflux. This type of setup is quite common in experimental devices; in industrial applications, ammonia distillation towers use internal reflux, with a vertical condenser integrated at the top of the tower. The reflux ratio for internal reflux is relatively difficult to control; it is mainly adjusted by modifying the amount of vaporization and the flow rate of the cooling medium in the condenser (the temperature of the cooling medium can also be adjusted, but this is not commonly used). Generally, only a rough adjustment of the reflux ratio is possible. Advantages: 1. Internal recirculation saves energy, but it is difficult to control the recirculation ratio, whereas external recirculation makes it easy to control this ratio. 2. Although the internal recirculation type has a lower equipment cost, it is difficult to repair when the condenser is damaged.

The vapor is directly condensed within the tower to form a reflux stream. This type of experimental setup is quite common; in industrial applications, ammonia distillation towers use internal reflux, with a vertical condenser integrated at the top of the tower.

Internal reflux: The vapor is condensed directly within the tower, resulting in reflux

Internal reflux: The vapor is directly condensed within the tower to form reflux, which is a common configuration in experimental setups. The reflux ratio for internal reflux is relatively difficult to control; it is mainly adjusted by modifying the amount of vaporization and the flow rate of the cooling medium in the condenser (the temperature of the cooling medium can also be adjusted, but this is not commonly used). Generally, only a rough adjustment of the reflux ratio is possible. Advantages: 1. Internal recirculation saves energy, but it is difficult to control the recirculation ratio, whereas external recirculation makes it easy to control this ratio. 2. Although the internal recirculation type has a lower equipment cost, it is difficult to repair when the condenser is damaged.

The liquid phase moves downward; when the gas and liquid phases come into contact, the gas phase carries away the lighter components from the liquid phase, while the liquid phase carries away the heavier components from the gas phase. This is what is known as internal recirculation.

It takes place within the distillation tower; the gas-liquid contact that occurs across each tray is called internal reflux!

Internal reflux in Baidu: The vapor is directly condensed within the tower to form reflux, and this type of experimental setup is quite common. The reflux ratio for internal reflux is relatively difficult to control; it is mainly adjusted by modifying the amount of vaporization and the flow rate of the cooling medium in the condenser (the temperature of the cooling medium can also be adjusted, but this is not commonly used). Generally, only a rough adjustment of the reflux ratio is possible. Advantages: 1. Internal recirculation saves energy, but it is difficult to control the recirculation ratio, whereas external recirculation makes it easy to control this ratio. 2. Although the internal recirculation type has a lower equipment cost, it is difficult to repair when the condenser is damaged.

Internal recirculation refers to the backflow of liquid within the device itself, which occurs as a result of the interaction between gas and liquid inside the device, without the need for any external equipment.

The vapor is directly condensed within the tower to form a reflux stream. This type of experimental setup is quite common; in industrial applications, ammonia distillation towers use internal reflux, with a vertical condenser integrated at the top of the tower. The reflux ratio for internal reflux is relatively difficult to control; it is mainly adjusted by modifying the amount of vaporization and the flow rate of the cooling medium in the condenser (the temperature of the cooling medium can also be adjusted, but this is not commonly used). Generally, only a rough adjustment of the reflux ratio is possible. Advantages: 1. Internal recirculation saves energy, but it is difficult to control the recirculation ratio, whereas external recirculation makes it easy to control this ratio. 2. Although the internal recirculation type has a lower equipment cost, it is difficult to repair when the condenser is damaged.

The vapor is directly condensed within the tower to form a reflux stream