Purification Technology Edition: Daily Question [2017-11-2]
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What is the purpose of introducing nitrogen for stripping at the bottom of the hydrogen sulfide concentration tower? Why is it designed as an inverted “U”-shaped tube? Answer: Introducing nitrogen into the hydrogen sulfide concentration tower reduced the partial pressure of the carbon dioxide gas in the vapor phase, thereby increasing the driving force for the desorption process. It is necessary to desorb carbon dioxide from methanol at low temperatures as much as possible; the amount of nitrogen removed by gas stripping should be as high as feasible within certain limits. However, an excessively high amount will increase nitrogen consumption, while too low an amount will increase the load on the regeneration tower. The inlet pipe is designed in an inverted “U” shape to prevent methanol liquid from flowing back into the nitrogen stripping line.
Introducing nitrogen into the hydrogen sulfide concentration tower reduced the partial pressure of the carbon dioxide gas in the vapor phase, thereby increasing the driving force for the desorption process. It is necessary to desorb carbon dioxide from methanol at low temperatures as much as possible; the amount of nitrogen removed by gas stripping should be as high as feasible within certain limits. However, an excessively high amount will increase nitrogen consumption, while too low an amount will increase the load on the regeneration tower.
Introducing nitrogen into the hydrogen sulfide concentration tower reduced the partial pressure of the carbon dioxide gas in the vapor phase, thereby increasing the driving force for the desorption process. It is necessary to desorb carbon dioxide from methanol at low temperatures as much as possible; the amount of nitrogen removed by gas stripping should be as high as feasible within certain limits. However, an excessively high amount will increase nitrogen consumption, while too low an amount will increase the load on the regeneration tower.
Introducing nitrogen into the hydrogen sulfide concentration tower reduced the partial pressure of the carbon dioxide gas in the vapor phase, thereby increasing the driving force for the desorption process. It is necessary to desorb carbon dioxide from methanol at low temperatures as much as possible; the amount of nitrogen removed by gas stripping should be as high as feasible within certain limits. However, an excessively high amount will increase nitrogen consumption, while too low an amount will increase the load on the regeneration tower.
Introducing nitrogen into the hydrogen sulfide concentration tower reduced the partial pressure of the carbon dioxide gas in the vapor phase, thereby increasing the driving force for the desorption process. It is necessary to desorb carbon dioxide from methanol at low temperatures as much as possible; the amount of nitrogen removed by gas stripping should be as high as feasible within certain limits. However, an excessively high amount will increase nitrogen consumption, while too low an amount will increase the load on the regeneration tower.
Introducing nitrogen into the hydrogen sulfide concentration tower reduced the partial pressure of the carbon dioxide gas phase, increasing the driving force for the desorption process and enabling carbon dioxide in methanol to be desorbed at as low a temperature as possible.
Nitrogen is introduced in order to reduce the partial pressure of the gaseous components of carbon dioxide, thereby enabling CO2 to be released
Introducing nitrogen into T3003 reduced the partial pressure of CO2 in the gas phase, thereby increasing the driving force for the separation process and enabling CO2 to be separated from methanol at lower temperatures. The amount of nitrogen used for stripping should be as high as possible within a certain limit; however, an excessive amount will increase N3 consumption. An insufficient amount of nitrogen stripped will increase the load on T3004 and lead to a decrease in the H2S concentration in the gas sent to the Claus unit. In addition, the cold loss has increased
Stripping to reduce the partial pressure of carbon dioxide. Extract the carbon dioxide gas. Thereby achieving the purpose of concentrating hydrogen sulfide
Introducing nitrogen into the hydrogen sulfide concentration tower reduced the partial pressure of the carbon dioxide gas in the vapor phase, thereby increasing the driving force for the desorption process. It is necessary to desorb carbon dioxide from methanol at low temperatures as much as possible; the amount of nitrogen removed by gas stripping should be as high as feasible within certain limits. However, an excessively high amount will increase nitrogen consumption, while too low an amount will increase the load on the regeneration tower.
Nitrogen is introduced to reduce the partial pressure of the gaseous components of carbon dioxide, thereby enabling CO2 to be released