Sulfur Recovery Daily Question 2019.1.11
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What is the principle of thermal deoxidation? Answer: According to the law of gas dissolution, when a liquid and a gas are in equilibrium, the amount of gas dissolved per unit volume of liquid is proportional to the partial pressure of that gas above the liquid surface. If the partial pressure of a gas at the liquid surface is reduced, that gas dissolved in the liquid will precipitate out automatically, thereby reducing the amount of that gas dissolved in the liquid. Thermal deoxidation removes oxygen from water based on this principle. Steam is introduced into the deaerator and mixed with water before heating. As the temperature of the water rises, the vapor pressure of steam above the water surface increases, while the partial pressures of other gases decrease. When the water is heated to its boiling point, the vapor pressure of steam above the water surface is almost equal to the total pressure at the liquid surface, and the partial pressures of the other gases approach zero; as a result, the gases dissolved in the water are released from it and removed.
Thermal deaeration is based on the law of gas dissolution, which states that the solubility of a gas in water is proportional to its partial pressure (Henry’s law). As water is heated, as the temperature rises, the partial pressure of steam at the vapor-water interface increases, while the partial pressures of oxygen and other gases decrease. When water is heated to its boiling point, the pressure of water vapor rises to equal the external pressure, while the partial pressures of oxygen and other gases drop to zero; as a result, the dissolved oxygen in the water escapes completely.
Thermal deaeration is based on the law of gas dissolution, which states that the solubility of a gas in water is proportional to its partial pressure (Henry’s law). As water is heated, as the temperature rises, the partial pressure of steam at the vapor-water interface increases, while the partial pressures of oxygen and other gases decrease. When water is heated to its boiling point, the pressure of water vapor rises to equal the external pressure, while the partial pressures of oxygen and other gases drop to zero; as a result, the dissolved oxygen in the water escapes completely.
Answer: According to the law of gas dissolution, when a liquid and a gas are in equilibrium, the amount of gas dissolved per unit volume of liquid is proportional to the partial pressure of that gas above the liquid surface. If the partial pressure of a gas at the liquid surface is reduced, that gas dissolved in the liquid will automatically precipitate out
According to the law of gas dissolution, when a liquid and a gas are in equilibrium, the amount of gas dissolved per unit volume of liquid is proportional to the partial pressure of that gas above the liquid surface. If the partial pressure of a gas at the liquid surface is reduced, that gas dissolved in the liquid will precipitate out automatically, thereby reducing the amount of that gas dissolved in the liquid. Thermal deoxidation removes oxygen from water based on this principle. Steam is introduced into the deaerator and mixed with water before heating. As the temperature of the water rises, the vapor pressure of steam above the water surface increases, while the partial pressures of other gases decrease. When the water is heated to its boiling point, the vapor pressure of steam above the water surface is almost equal to the total pressure at the liquid surface, and the partial pressures of the other gases approach zero; as a result, the gases dissolved in the water are released from it and removed.
Thermal deaeration is based on the law of gas dissolution, which states that the solubility of a gas in water is proportional to its partial pressure (Henry’s law). As water is heated, as the temperature rises, the partial pressure of steam at the vapor-water interface increases, while the partial pressures of oxygen and other gases decrease. When water is heated to its boiling point, the pressure of water vapor rises to equal the external pressure, while the partial pressures of oxygen and other gases drop to zero; as a result, the dissolved oxygen in the water escapes completely.
Thermal deaeration is based on the law of gas dissolution, which states that the solubility of a gas in water is proportional to its partial pressure (Henry’s law). As water is heated, as the temperature rises, the partial pressure of steam at the vapor-water interface increases, while the partial pressures of oxygen and other gases decrease. When water is heated to its boiling point, the pressure of water vapor rises to equal the external pressure, while the partial pressures of oxygen and other gases drop to zero; as a result, the dissolved oxygen in the water escapes completely.
According to the law of gas dissolution, when a liquid and a gas are in equilibrium, the amount of gas dissolved per unit volume of liquid is proportional to the partial pressure of that gas above the liquid surface. If the partial pressure of a gas at the liquid surface is reduced, that gas dissolved in the liquid will precipitate out automatically, thereby reducing the amount of that gas dissolved in the liquid. Thermal deoxidation removes oxygen from water based on this principle. Steam is introduced into the deaerator and mixed with water before heating. As the temperature of the water rises, the vapor pressure of steam above the water surface increases, while the partial pressures of other gases decrease. When the water is heated to its boiling point, the vapor pressure of steam above the water surface is almost equal to the total pressure at the liquid surface, and the partial pressures of the other gases approach zero; as a result, the gases dissolved in the water are released from it and removed.
According to the law of gas dissolution, when a liquid and a gas are in equilibrium, the amount of gas dissolved per unit volume of liquid is proportional to the partial pressure of that gas above the liquid surface. If the partial pressure of a gas at the liquid surface is reduced, that gas dissolved in the liquid will precipitate out automatically, thereby reducing the amount of that gas dissolved in the liquid. Thermal deoxidation removes oxygen from water based on this principle. Steam is introduced into the deaerator and mixed with water before heating. As the temperature of the water rises, the vapor pressure of steam above the water surface increases, while the partial pressures of other gases decrease. When the water is heated to its boiling point, the vapor pressure of steam above the water surface is almost equal to the total pressure at the liquid surface, and the partial pressures of the other gases approach zero; as a result, the gases dissolved in the water are released from it and removed.
Thermal deaeration is based on the law of gas dissolution, which states that the solubility of a gas in water is proportional to its partial pressure (Henry’s law). As water is heated, as the temperature rises, the partial pressure of steam at the vapor-water interface increases, while the partial pressures of oxygen and other gases decrease. When water is heated to its boiling point, the pressure of water vapor rises to equal the external pressure, while the partial pressures of oxygen and other gases drop to zero; as a result, the dissolved oxygen in the water escapes completely.
According to the law of gas dissolution, when a liquid and a gas are in equilibrium, the amount of gas dissolved per unit volume of liquid is proportional to the partial pressure of that gas above the liquid surface. If the partial pressure of a gas at the liquid surface is reduced, that gas dissolved in the liquid will precipitate out automatically, thereby reducing the amount of that gas dissolved in the liquid. Thermal deoxidation removes oxygen from water based on this principle. Steam is introduced into the deaerator and mixed with water before heating. As the temperature of the water rises, the vapor pressure of steam above the water surface increases, while the partial pressures of other gases decrease. When the water is heated to its boiling point, the vapor pressure of steam above the water surface is almost equal to the total pressure at the liquid surface, and the partial pressures of the other gases approach zero; as a result, the gases dissolved in the water are released from it and removed.