Why can't the purity of your laboratory nitrogen gas generator be improved?

With the continuous maturity of pressure swing adsorbent technology, the application fields have become more and more extensive. The demand for laboratory nitrogen gas generator in Europe, the United States and other countries is increasing every year. In recent years, the demand in some developing countries has also increased by leaps and bounds, and the annual growth rate is also rapid. The increase in demand has promoted the adsorbent carbon. The rapid development of molecular sieves.
The nitrogen, the inherent flow rate and the purity of the hydrogen gas of the laboratory nitrogen gas generator enter the setting device together, and enter the palladium catalyst degasser setting device after being fully mixed in the mixer, and the chemistry of 2h2+o2=2h2 occurs under the action of the deoxidizing catalyst After the reaction, the polyurethane achieves the purpose of deoxygenation. After deoxygenation, the water in the nitrogen is dehydrated by the cooler, and the nitrogen is connected to the monotoner in turn to make the nitrogen dew point reach -60°C. The monotoner is equipped with two units. One monotonously maintains the monotonicity of adsorption, and the other monotonously absorbs all the water vapor in monotonic regeneration, preparing for the next cycle of adsorption work. After dust removal with a monotonic nitrogen filter, high purity nitrogen is obtained.
After the nitrogen generation section is separated, the adsorption of oxygen by the molecular sieve reaches equilibrium. According to the characteristics of carbon molecular sieve adsorbing different amounts of adsorbed gas under different pressures, the downward pressure prevents the carbon molecular sieve from oxygen adsorption. The process is regeneration. According to the different regeneration pressure, It can be divided into vacuum regeneration and atmospheric pressure regeneration. Atmospheric pressure regeneration is conducive to the complete regeneration of molecular sieve, and it is easy to obtain high-purity gas.
Many customers wonder why the purity of the laboratory nitrogen gas generator can not be improved? The following editor will introduce some common reasons for you:
1. Whether the system has air leakage, including internal leakage and external leakage.
2. Whether the time control between the several links of the pressure swing adsorption is reasonable to avoid mutual mixing.
3. Whether the selected molecular sieve is suitable, it must be able to separate oxygen and nitrogen well.
4. If you want to obtain high-purity nitrogen, you need to add a suitable amount of hydrogen and trace oxygen in the nitrogen to carry out a catalytic reaction to remove the oxygen and then cool it by a water condenser, remove water from a steam-water separator, and then deep dry it through a dryer , Two of the adsorption drying towers are used alternately, one for adsorption and drying to remove water, and the other for heating and desorption for drainage to obtain high-purity nitrogen.