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Home >> Industry Knowledge >> Molecular Sieve Nitrogen Generator air separation
Transfer from: http://www.gaspu.com/y2.asp
Molecular sieve, also known as nitrogen air separation PSA nitrogen to the air as raw materials and carbon molecular sieve as the adsorbent, the use of pressure swing adsorption principle, the use of carbon molecular sieve oxygen and nitrogen on the selective adsorption of nitrogen and oxygen separation method.
1. Process Introduction
Air by the air filter to remove dust and mechanical impurities into the air compressor, compressed to the pressure required by the strict removal, in addition to water, dust purification treatment, the output of clean compressed air, designed to ensure that the use of molecular sieve adsorption tower life. Adsorption of carbon molecular sieve with a total of two towers, one tower work, and the other is vacuum desorption tower. Clean air into the adsorption tower work, after molecular sieve oxygen, carbon dioxide and water by their adsorption, flow to the exit of the gas is nitrogen and traces of argon and oxygen. Another tower (desorption tower) so as to enable the adsorption of oxygen, carbon dioxide and water from the row in microporous zeolite to the atmosphere. This rotation for the two towers to complete the nitrogen-oxygen separation, continuous output of nitrogen. Preparation of PSA nitrogen purity of 95% -99.999%, if the need for higher nitrogen purity nitrogen purification equipment to be increased. PSA nitrogen output of 95% -99.9% nitrogen into the nitrogen gas purification equipment, through a flow meter at the same time to add the right amount of hydrogen, oxygen equipment in the purification of hydrogen and nitrogen Tazhong trace oxygen in the catalytic reaction carried out to remove oxygen and then through condenser cooling water, soft drinks in addition to the water separator, and then through the dryer drying depth (two adsorption drying tower used interchangeably: a dry addition to water absorption, and the other heating desorption drainage), and high-purity nitrogen, at this time of 99.9995% purity nitrogen. PSA currently the largest production capacity of nitrogen 3000m3n / h.
2. Main Equipment
The process of air filter and air compressor with a brief introduction of nitrogen cryogenic process.
2.1 cold and dry machine: It is used to reduce the purifier into the air before the compressed air drying temperature, precipitation to the oil and water equipment. Tube used, pipe, heat sinks, such as structure type aftercooler.
2.2 Oil-water Separator: its role is separated from the compressed air contained in the oil and water, so that a preliminary purification of compressed air.
Dry air purifiers 2.3: After the compressed air after-cooler with some water, and its content depends on the temperature of the air. Dry compressed air to deal with the general use of molecular sieve adsorption and freeze-drying.
PSA Nitrogen 2.4 devices: usually used for the 5A molecular sieve adsorbents or carbon molecular sieves, renewable sources of renewable for non-thermal, high pressure adsorption, low pressure or atmospheric pressure to resolve. This is the core of the separation of nitrogen.
2.5 Nitrogen purification equipment: including deaerator tower, adsorption dryers and water condenser. Deaerator tower is a use of palladium catalyst for the catalytic reactor. Adsorption dryer for the molecular sieve adsorbent, regeneration methods for renewable heat (electric heating).
PSA nitrogen process simple with a high degree of automation, fast gas production (15 ~ 30 minutes), low energy consumption and product purity in a wide range according to the need for regulation, operation and maintenance convenience, lower cost operation, installation strong adaptability and so on. In 1000Nm3 / h below the small and medium-sized customers a wide range of applications of nitrogen, PSA nitrogen has become the small and medium-sized nitrogen user's preferred method.
Molecular sieve, also known as nitrogen air separation PSA nitrogen to the air as raw materials and carbon molecular sieve as the adsorbent, the use of pressure swing adsorption principle, the use of carbon molecular sieve oxygen and nitrogen on the selective adsorption of nitrogen and oxygen separation method.
1. Process Introduction
Air by the air filter to remove dust and mechanical impurities into the air compressor, compressed to the pressure required by the strict removal, in addition to water, dust purification treatment, the output of clean compressed air, designed to ensure that the use of molecular sieve adsorption tower life. Adsorption of carbon molecular sieve with a total of two towers, one tower work, and the other is vacuum desorption tower. Clean air into the adsorption tower work, after molecular sieve oxygen, carbon dioxide and water by their adsorption, flow to the exit of the gas is nitrogen and traces of argon and oxygen. Another tower (desorption tower) so as to enable the adsorption of oxygen, carbon dioxide and water from the row in microporous zeolite to the atmosphere. This rotation for the two towers to complete the nitrogen-oxygen separation, continuous output of nitrogen. Preparation of PSA nitrogen purity of 95% -99.999%, if the need for higher nitrogen purity nitrogen purification equipment to be increased. PSA nitrogen output of 95% -99.9% nitrogen into the nitrogen gas purification equipment, through a flow meter at the same time to add the right amount of hydrogen, oxygen equipment in the purification of hydrogen and nitrogen Tazhong trace oxygen in the catalytic reaction carried out to remove oxygen and then through condenser cooling water, soft drinks in addition to the water separator, and then through the dryer drying depth (two adsorption drying tower used interchangeably: a dry addition to water absorption, and the other heating desorption drainage), and high-purity nitrogen, at this time of 99.9995% purity nitrogen. PSA currently the largest production capacity of nitrogen 3000m3n / h.
2. Main Equipment
The process of air filter and air compressor with a brief introduction of nitrogen cryogenic process.
2.1 cold and dry machine: It is used to reduce the purifier into the air before the compressed air drying temperature, precipitation to the oil and water equipment. Tube used, pipe, heat sinks, such as structure type aftercooler.
2.2 Oil-water Separator: its role is separated from the compressed air contained in the oil and water, so that a preliminary purification of compressed air.
Dry air purifiers 2.3: After the compressed air after-cooler with some water, and its content depends on the temperature of the air. Dry compressed air to deal with the general use of molecular sieve adsorption and freeze-drying.
PSA Nitrogen 2.4 devices: usually used for the 5A molecular sieve adsorbents or carbon molecular sieves, renewable sources of renewable for non-thermal, high pressure adsorption, low pressure or atmospheric pressure to resolve. This is the core of the separation of nitrogen.
2.5 Nitrogen purification equipment: including deaerator tower, adsorption dryers and water condenser. Deaerator tower is a use of palladium catalyst for the catalytic reactor. Adsorption dryer for the molecular sieve adsorbent, regeneration methods for renewable heat (electric heating).
PSA nitrogen process simple with a high degree of automation, fast gas production (15 ~ 30 minutes), low energy consumption and product purity in a wide range according to the need for regulation, operation and maintenance convenience, lower cost operation, installation strong adaptability and so on. In 1000Nm3 / h below the small and medium-sized customers a wide range of applications of nitrogen, PSA nitrogen has become the small and medium-sized nitrogen user's preferred method.