What is the average lifespan of the electro-oxidic electrode in a nitrogen generator?

Equipment for producing nitrogen includes nitrogen compressors, nitrogen generators, nitrogen production units, nitrogen-making machines, ammonia decomposition furnaces, and gas purification equipment. The air separation method is primarily used. Air separation methods include: cryogenic method, pressure swing adsorption method, and membrane separation method. I’m not sure what process is involved in the electro-oxidation electrodes mentioned by the original poster The nitrogen required by typical chlor-alkali plants is supplied by PSA nitrogen generators. The basic process involves first using a air compressor (screw type) to produce compressed air; this air then passes through an air storage tank to have some of the liquid water and oil removed from it. Subsequently, an air treatment system (freeze dryer and precision filters) is used to eliminate any remaining water, oil, and dust from the air, thereby providing clean and stable compressed air for the nitrogen generator – which is the raw material used to produce nitrogen. The purified and dried compressed air, under pressure, takes advantage of the fact that oxygen diffuses and adsorbs in the micropores of carbon molecular sieves at a much faster rate than nitrogen does. Before equilibrium is reached, nitrogen becomes concentrated in the gas phase, thereby producing pure nitrogen. Then, by reducing the pressure to atmospheric level, the adsorbent releases the oxygen and other impurities it has absorbed, thereby achieving regeneration. Two adsorption towers are installed in the system: one is used for nitrogen adsorption, while the other is used for desorption and regeneration. A PLC program controller is used to control the opening and closing of the pneumatic valves, enabling the two towers to operate in alternating cycles and thus achieving continuous production of high-quality nitrogen. This post was last edited by yzhms on 2009-2-16 17:14]

Generally, using it for half a year isn’t very accurate

Based on usage experience, it is generally advisable to reduce the flow rate of the gas used for sampling; it is sufficient to have a slight sensation of airflow with the tongue. This will help extend the lifespan of the oxygen electrode. Generally, 6 months. When the analyzer displays “0000” or “9999”, it indicates that the oxygen electrode has reached the end of its useful life.

It depends on the manufacturer and the application scenario. If only nitrogen is used, some manufacturers’ products can last 1-2 years, while others only last about half a year

There is a company in Shanghai that produces products capable of lasting 25,000 hours, whereas the usual lifespan is around 6,000 hours. . .