Theory and Method
Gas Generator (N₂, H₂, Air) - QT-GGE-300
The QT-GGE-300 Gas Generator integrates three independent gas generation technologies within a single compact enclosure to produce nitrogen, hydrogen, and clean dry air simultaneously and continuously.
Nitrogen and hydrogen are generated by proton exchange membrane (PEM) water electrolysis. When deionized or distilled water is introduced to the electrolytic cell, a low-voltage direct current is applied across a solid polymer membrane. Water molecules at the anode are split into oxygen, protons (H⁺), and electrons. The protons migrate through the membrane to the cathode, where they combine with electrons to form hydrogen gas. Nitrogen is separated and purified from the hydrogen-oxygen process using molecular sieve and membrane separation technologies, producing instrument-grade nitrogen at purity exceeding 99.999%.
The air supply is generated by a miniature oil-free compressor and then processed through a three-stage purification system to remove moisture, oil mist, and particulate contaminants — delivering clean, dry, analytical-grade air for use as FID oxidant gas or other laboratory applications.
All three gases are delivered at independently regulated output pressures through dedicated flow-metered outlets, allowing precise adjustment of gas flow rates to match the specific requirements of the connected gas chromatography system. The multistage safety protection system continuously monitors internal operating parameters and automatically shuts down the generator if any safety threshold is exceeded — preventing over-pressure, overtemperature, or low-water conditions.
