Hydrogenation Purification to Nitrogen

Short Description:

Principle of Hydrogenation Purification

The raw nitrogen will be produced by PSA or membrane separation, and mixed with small amount of hydrogen. Residual oxygen reacts with hydrogen to produce water vapor in a reactor filled with metal palladium catalyst, therefor, most of the water vapor is condensed through the after-cooler, and the condensed water is removed through the high-efficiency water separator. After deep dehydration and dust removal in the dryer, the high purity nitrogen is obtained finally.

By the way, The adsorption dryer can make the dew point of product gas below – 70℃. The purity of product gas continuously monitored online by analyzer.


Product Detail

Product Tags

Principle of Hydrogenation Purification

The raw nitrogen will be produced by PSA or membrane separation, and mixed with small amount of hydrogen. Residual oxygen reacts with hydrogen to produce water vapor in a reactor filled with metal palladium catalyst, therefor, most of the water vapor is condensed through the after-cooler, and the condensed water is removed through the high-efficiency water separator. After deep dehydration and dust removal in the dryer, the high purity nitrogen is obtained finally.
By the way, The adsorption dryer can make the dew point of product gas below - 70℃. The purity of product gas continuously monitored online by analyzer.

The chemical equation is: 2H2 + O2 = 2H2O + Heat
In order to ensure that oxygen is completely removed, the actual ratio of H2 to O2 is slightly higher than the theoretical value, so that the reaction is very complete to obtain the high purity nitrogen, and the purity can reach more than 99.9995% after refining.

Process Flow Diagram

Composition

Hydrogenation purification composed of mixer, catalytic reactor, after-cooler, cyclone separator, filter or adsorption dryer, oxygen analyzer, flow meter and product nitrogen buffer tank.

Application

Suitable for industries that are not sensitive to hydrogen, such like heat treatment, powder metallurgy, copper smelting and processing, iron and steel processing, bearing, chemical industry, electronics, glass, metal and magnetic materials.

Technical Features

☆ Simple operation, convenient maintenance and stable performance;
☆ Integrated skid structure design, easy installation and small land occupation;
☆ Use the high-efficiency catalyst to deaeration without activation;
☆ Interlocking control with air purification and PSA nitrogen generation;
☆ Wide range of requirements for common nitrogen in 98 ~ 99.9%;
☆ The mixing is completed in the static mixer with good effect and less hydrogen consumption;
☆ Automatic nitrogen hydrogen proportioning that is fully automatic control with small lag, high adjustment accuracy, safety and reliability;

Main Technical Parameters

Nitrogen Flow Rate

10 ~ 2000Nm3/h

Nitrogen Purity

99.999 ~ 99.9997%

Nitrogen Pressure

0.1 ~ 0.7 MPa(Adjustable )

Dew Point

-60

Oxygen Content

3-10ppm

Hydrogen Content

1000ppm

Model Identifiers of Hydrogenation Purification

Specification Output(Nm³/h) Effective Gas Consumption(Nm³/min) Inlet DN(mm) Outlet DN(mm)
BNP-NH60 66 60 0.7 1.0
BNP-NH80 88 80 1.0 1.1
BNP-NH100 110 100 1.2 1.1
BNP-NH150 165 150 1.8 2.4
BNP-NH200 220 200 2.4 3.4
BNP-NH250 275 250 3.0 3.4
BNP-NH300 330 300 3.7 3.4
BNP-NH400 440 400 4.9 7.0
BNP-NH500 550 500 6.1 7.0
BNP-NH600 660 600 7.3 7.0
BNP-NH800 880 800 9.7 10.5
BNP-NH1000 1100 1000 12.2 13.8
BNP-NH1200 1320 1200 14.6 13.8
BNP-NH1500 1650 1500 18.3 21.0
BNP-NH2000 2200 2000 24.3 27.5

Note:
According to requirements of customer (nitrogen flow / purity / pressure, environment, main uses and special requirements), Binuo Mechanics will be customized for non-standard products.

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