Q&A on Purification Technology [029]
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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 as low a temperature as possible. The amount of nitrogen removed by gas stripping should be as high as possible within a certain range; however, too high an 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. Coalification Region Purification Technology Edition – 2017 Coal Chemical Industry “My Technical Upgrades” Contest (Generous Prizes Available) http://bbs.hcbbs.com/thread-1786290-1-1.html Registration for Chemical Engineers – Experience Sharing Event “Learning from Others’ Experiences” http://bbs.hcbbs.com/thread-1808158-1-1.html
Reducing the partial pressure of carbon dioxide gas in the vapor phase increased the desorption driving force. . The inlet pipe is designed in an inverted “U” shape to prevent methanol liquid from flowing back into the nitrogen stripping pipeline
Nitrogen is introduced to reduce the partial pressure of the carbon dioxide gas phase components, thereby allowing CO2 to be released; a \"U\"-shaped tube is used 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 as low a temperature as possible. The amount of nitrogen removed by gas stripping should be as high as possible within a certain range; however, too high an 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.
Transport hydrogen sulfide from the bottom gas of the tower to the top to prevent defective products; a liquid seal is used to prevent backflow
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 as low a temperature as possible. The amount of nitrogen removed by gas stripping should be as high as possible within a certain range; however, too high an 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 gas pipeline.
Nitrogen is introduced in order to reduce the partial pressure of the carbon dioxide gas phase components, thereby enabling CO2 to be released. The use of a \"U\"-shaped tube serves 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 as low a temperature as possible. The amount of nitrogen removed by gas stripping should be as high as possible within a certain range; however, too high an 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.
1. Function of introducing stripping nitrogen: To strip the sulfur dioxide-containing gases from the methanol-rich stream, converting them into off-gases for disposal, or to use them as product gas for further concentration of H2S. This ensures that the concentration of acidic gases in the desulfurization recovery unit meets the required standards during regeneration. Stripping also provides cooling capacity for the low-temperature methanol washing system
Reduce the carbon dioxide partial pressure to remove carbon dioxide from the gas in methanol. The U-tube is mainly used to prevent liquid from flowing back
Nitrogen is introduced in order to reduce the partial pressure of the carbon dioxide gas phase components, thereby enabling CO2 to be released. The use of a \"U\"-shaped tube serves to prevent methanol liquid from flowing back into the nitrogen stripping line